/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_spec1_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:55:00,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:55:00,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:55:00,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:55:00,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:55:00,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:55:00,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:55:00,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:55:00,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:55:00,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:55:00,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:55:00,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:55:00,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:55:00,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:55:00,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:55:00,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:55:00,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:55:00,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:55:00,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:55:00,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:55:00,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:55:00,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:55:00,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:55:00,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:55:00,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:55:00,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:55:00,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:55:00,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:55:00,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:55:00,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:55:00,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:55:00,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:55:00,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:55:00,443 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:55:00,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:55:00,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:55:00,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:55:00,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:55:00,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:55:00,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:55:00,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:55:00,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 02:55:00,468 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:55:00,468 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:55:00,469 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:55:00,469 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:55:00,470 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:55:00,470 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:55:00,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:55:00,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:55:00,470 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:55:00,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:55:00,471 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:55:00,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:55:00,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:55:00,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:55:00,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:55:00,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:55:00,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:55:00,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:55:00,474 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:55:00,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:55:00,474 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:55:00,474 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:55:00,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:55:00,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:55:00,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:55:00,679 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:55:00,680 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:55:00,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product21.cil.c [2023-04-02 02:55:01,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:55:01,992 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:55:01,993 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product21.cil.c [2023-04-02 02:55:02,012 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3caf2624/fc410aaff2f54c8081f2507b38f3be77/FLAG753bef22e [2023-04-02 02:55:02,028 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a3caf2624/fc410aaff2f54c8081f2507b38f3be77 [2023-04-02 02:55:02,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:55:02,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:55:02,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:55:02,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:55:02,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:55:02,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1793b252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02, skipping insertion in model container [2023-04-02 02:55:02,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:55:02,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:55:02,503 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_spec1_product21.cil.c[66510,66523] [2023-04-02 02:55:02,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:55:02,525 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:55:02,608 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_spec1_product21.cil.c[66510,66523] [2023-04-02 02:55:02,611 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:55:02,629 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:55:02,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02 WrapperNode [2023-04-02 02:55:02,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:55:02,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:55:02,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:55:02,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:55:02,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,732 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:55:02,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:55:02,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:55:02,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:55:02,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (1/1) ... [2023-04-02 02:55:02,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:55:02,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:02,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 02:55:02,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 02:55:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:55:02,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:55:02,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:55:02,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:55:02,832 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:55:02,833 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:55:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:55:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:55:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:55:02,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:55:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:55:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:55:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:55:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:55:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:55:02,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2023-04-02 02:55:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__2 [2023-04-02 02:55:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__3 [2023-04-02 02:55:02,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__4 [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:55:02,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:55:02,838 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:55:02,839 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:55:02,840 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__3 [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:55:02,841 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:55:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:55:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:55:02,842 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:55:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:55:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:55:02,843 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:55:02,846 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__4 [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:55:02,850 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:55:02,851 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__2 [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:55:02,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:55:03,107 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:55:03,109 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:55:04,265 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:55:04,278 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:55:04,278 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:55:04,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:55:04 BoogieIcfgContainer [2023-04-02 02:55:04,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:55:04,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:55:04,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:55:04,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:55:04,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:55:02" (1/3) ... [2023-04-02 02:55:04,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767c1ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:55:04, skipping insertion in model container [2023-04-02 02:55:04,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:55:02" (2/3) ... [2023-04-02 02:55:04,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@767c1ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:55:04, skipping insertion in model container [2023-04-02 02:55:04,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:55:04" (3/3) ... [2023-04-02 02:55:04,289 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.c [2023-04-02 02:55:04,303 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:55:04,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:55:04,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:55:04,361 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;@7f5017d5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:55:04,361 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:55:04,369 INFO L276 IsEmpty]: Start isEmpty. Operand has 774 states, 538 states have (on average 1.6356877323420074) internal successors, (880), 565 states have internal predecessors, (880), 173 states have call successors, (173), 50 states have call predecessors, (173), 50 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) [2023-04-02 02:55:04,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-04-02 02:55:04,393 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:04,394 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:04,394 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:04,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:04,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1373057377, now seen corresponding path program 1 times [2023-04-02 02:55:04,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:04,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521265347] [2023-04-02 02:55:04,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:04,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:05,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:55:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:05,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:05,752 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:05,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:05,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521265347] [2023-04-02 02:55:05,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521265347] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:05,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037514019] [2023-04-02 02:55:05,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:05,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:05,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:05,761 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 02:55:05,762 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 02:55:06,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:06,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 1 conjunts are in the unsatisfiable core [2023-04-02 02:55:06,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:06,282 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 02:55:06,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:06,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037514019] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:06,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:06,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [10] total 10 [2023-04-02 02:55:06,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696921378] [2023-04-02 02:55:06,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:06,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 02:55:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:06,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 02:55:06,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:55:06,311 INFO L87 Difference]: Start difference. First operand has 774 states, 538 states have (on average 1.6356877323420074) internal successors, (880), 565 states have internal predecessors, (880), 173 states have call successors, (173), 50 states have call predecessors, (173), 50 states have return successors, (173), 164 states have call predecessors, (173), 173 states have call successors, (173) Second operand has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2023-04-02 02:55:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:06,372 INFO L93 Difference]: Finished difference Result 657 states and 1045 transitions. [2023-04-02 02:55:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 02:55:06,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) Word has length 155 [2023-04-02 02:55:06,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:06,390 INFO L225 Difference]: With dead ends: 657 [2023-04-02 02:55:06,390 INFO L226 Difference]: Without dead ends: 620 [2023-04-02 02:55:06,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:55:06,395 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:06,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1000 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:06,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 620 states. [2023-04-02 02:55:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 620 to 620. [2023-04-02 02:55:06,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 456 states have (on average 1.662280701754386) internal successors, (758), 475 states have internal predecessors, (758), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 02:55:06,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 990 transitions. [2023-04-02 02:55:06,474 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 990 transitions. Word has length 155 [2023-04-02 02:55:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:06,475 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 990 transitions. [2023-04-02 02:55:06,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.0) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 1 states have call successors, (26) [2023-04-02 02:55:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 990 transitions. [2023-04-02 02:55:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 02:55:06,482 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:06,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:06,501 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 02:55:06,694 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,SelfDestructingSolverStorable0 [2023-04-02 02:55:06,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:06,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1749607948, now seen corresponding path program 1 times [2023-04-02 02:55:06,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:06,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993641397] [2023-04-02 02:55:06,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:06,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:07,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:07,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:07,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:07,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:55:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:07,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:07,756 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:07,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993641397] [2023-04-02 02:55:07,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993641397] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:07,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33482076] [2023-04-02 02:55:07,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:07,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:07,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:07,761 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 02:55:07,765 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 02:55:08,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:08,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:08,243 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:08,243 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:08,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [33482076] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:08,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:08,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-04-02 02:55:08,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414329629] [2023-04-02 02:55:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:08,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:55:08,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:08,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:55:08,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:55:08,246 INFO L87 Difference]: Start difference. First operand 620 states and 990 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:08,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:08,347 INFO L93 Difference]: Finished difference Result 1637 states and 2653 transitions. [2023-04-02 02:55:08,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:55:08,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 157 [2023-04-02 02:55:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:08,359 INFO L225 Difference]: With dead ends: 1637 [2023-04-02 02:55:08,359 INFO L226 Difference]: Without dead ends: 1126 [2023-04-02 02:55:08,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:55:08,366 INFO L413 NwaCegarLoop]: 1667 mSDtfsCounter, 818 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2651 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:08,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 2651 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:08,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2023-04-02 02:55:08,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1104. [2023-04-02 02:55:08,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 820 states have (on average 1.6646341463414633) internal successors, (1365), 852 states have internal predecessors, (1365), 211 states have call successors, (211), 75 states have call predecessors, (211), 72 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:08,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1785 transitions. [2023-04-02 02:55:08,428 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1785 transitions. Word has length 157 [2023-04-02 02:55:08,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:08,429 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1785 transitions. [2023-04-02 02:55:08,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:08,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1785 transitions. [2023-04-02 02:55:08,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 02:55:08,436 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:08,437 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:08,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-02 02:55:08,644 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,SelfDestructingSolverStorable1 [2023-04-02 02:55:08,647 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:08,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:08,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1048008074, now seen corresponding path program 1 times [2023-04-02 02:55:08,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:08,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518419063] [2023-04-02 02:55:08,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:08,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:08,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:08,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:55:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:09,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,429 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:09,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:09,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518419063] [2023-04-02 02:55:09,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518419063] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:09,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564604138] [2023-04-02 02:55:09,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:09,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:09,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:09,430 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 02:55:09,456 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 02:55:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:09,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 2955 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:09,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:09,966 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:55:09,967 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:09,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564604138] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:09,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:09,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55716251] [2023-04-02 02:55:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:09,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:09,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:09,969 INFO L87 Difference]: Start difference. First operand 1104 states and 1785 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:10,037 INFO L93 Difference]: Finished difference Result 2180 states and 3543 transitions. [2023-04-02 02:55:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:55:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 157 [2023-04-02 02:55:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:10,045 INFO L225 Difference]: With dead ends: 2180 [2023-04-02 02:55:10,045 INFO L226 Difference]: Without dead ends: 1104 [2023-04-02 02:55:10,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:10,052 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 14 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:10,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2921 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:10,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-04-02 02:55:10,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1104. [2023-04-02 02:55:10,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 820 states have (on average 1.6634146341463414) internal successors, (1364), 852 states have internal predecessors, (1364), 211 states have call successors, (211), 75 states have call predecessors, (211), 72 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1784 transitions. [2023-04-02 02:55:10,094 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1784 transitions. Word has length 157 [2023-04-02 02:55:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:10,095 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1784 transitions. [2023-04-02 02:55:10,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:10,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1784 transitions. [2023-04-02 02:55:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 02:55:10,098 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:10,098 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:10,109 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 02:55:10,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:10,307 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:10,307 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:10,308 INFO L85 PathProgramCache]: Analyzing trace with hash 316348720, now seen corresponding path program 1 times [2023-04-02 02:55:10,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:10,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977878191] [2023-04-02 02:55:10,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:10,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:10,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:10,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:55:11,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:55:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,102 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:11,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:11,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977878191] [2023-04-02 02:55:11,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977878191] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:11,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843149622] [2023-04-02 02:55:11,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:11,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:11,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:11,103 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 02:55:11,142 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 02:55:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:11,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:11,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:11,563 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:55:11,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:11,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843149622] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:11,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:11,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:11,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727753978] [2023-04-02 02:55:11,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:11,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:11,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:11,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:11,567 INFO L87 Difference]: Start difference. First operand 1104 states and 1784 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:11,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:11,650 INFO L93 Difference]: Finished difference Result 2180 states and 3541 transitions. [2023-04-02 02:55:11,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:55:11,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 159 [2023-04-02 02:55:11,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:11,659 INFO L225 Difference]: With dead ends: 2180 [2023-04-02 02:55:11,659 INFO L226 Difference]: Without dead ends: 1104 [2023-04-02 02:55:11,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:11,664 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 12 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:11,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2921 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:11,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2023-04-02 02:55:11,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1104. [2023-04-02 02:55:11,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 820 states have (on average 1.6621951219512194) internal successors, (1363), 852 states have internal predecessors, (1363), 211 states have call successors, (211), 75 states have call predecessors, (211), 72 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:11,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1783 transitions. [2023-04-02 02:55:11,697 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1783 transitions. Word has length 159 [2023-04-02 02:55:11,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:11,697 INFO L495 AbstractCegarLoop]: Abstraction has 1104 states and 1783 transitions. [2023-04-02 02:55:11,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:11,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1783 transitions. [2023-04-02 02:55:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 02:55:11,701 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:11,701 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:11,724 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 02:55:11,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:11,913 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:11,913 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:11,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1358721618, now seen corresponding path program 1 times [2023-04-02 02:55:11,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:11,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597097362] [2023-04-02 02:55:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:11,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:55:12,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:12,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:55:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:12,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597097362] [2023-04-02 02:55:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597097362] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187863943] [2023-04-02 02:55:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:12,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:12,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:12,639 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 02:55:12,641 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 02:55:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 2959 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:13,103 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:13,124 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:55:13,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:13,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187863943] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:13,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:13,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:13,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315443437] [2023-04-02 02:55:13,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:13,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:13,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:13,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:13,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:13,126 INFO L87 Difference]: Start difference. First operand 1104 states and 1783 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:13,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:13,184 INFO L93 Difference]: Finished difference Result 2187 states and 3548 transitions. [2023-04-02 02:55:13,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:13,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 161 [2023-04-02 02:55:13,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:13,190 INFO L225 Difference]: With dead ends: 2187 [2023-04-02 02:55:13,190 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 02:55:13,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:13,195 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 20 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:13,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2921 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:13,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 02:55:13,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-04-02 02:55:13,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 828 states have (on average 1.6606280193236715) internal successors, (1375), 860 states have internal predecessors, (1375), 211 states have call successors, (211), 76 states have call predecessors, (211), 73 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:13,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1795 transitions. [2023-04-02 02:55:13,225 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1795 transitions. Word has length 161 [2023-04-02 02:55:13,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:13,225 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1795 transitions. [2023-04-02 02:55:13,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1795 transitions. [2023-04-02 02:55:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-04-02 02:55:13,228 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:13,228 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:13,253 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 02:55:13,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:13,438 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:13,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:13,438 INFO L85 PathProgramCache]: Analyzing trace with hash 161586906, now seen corresponding path program 1 times [2023-04-02 02:55:13,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:13,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971737382] [2023-04-02 02:55:13,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:13,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:13,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:13,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:13,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:55:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 02:55:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:14,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:55:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,217 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:14,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:14,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971737382] [2023-04-02 02:55:14,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971737382] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:14,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625427258] [2023-04-02 02:55:14,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:14,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:14,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:14,219 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 02:55:14,221 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 02:55:14,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:14,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 2960 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:14,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:55:14,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:14,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625427258] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:14,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:14,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896232906] [2023-04-02 02:55:14,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:14,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:14,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:14,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:14,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:14,706 INFO L87 Difference]: Start difference. First operand 1113 states and 1795 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:14,767 INFO L93 Difference]: Finished difference Result 2189 states and 3549 transitions. [2023-04-02 02:55:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 162 [2023-04-02 02:55:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:14,773 INFO L225 Difference]: With dead ends: 2189 [2023-04-02 02:55:14,773 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 02:55:14,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:14,777 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 18 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:14,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2921 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:14,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 02:55:14,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-04-02 02:55:14,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 828 states have (on average 1.6594202898550725) internal successors, (1374), 860 states have internal predecessors, (1374), 211 states have call successors, (211), 76 states have call predecessors, (211), 73 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:14,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1794 transitions. [2023-04-02 02:55:14,813 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1794 transitions. Word has length 162 [2023-04-02 02:55:14,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:14,814 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1794 transitions. [2023-04-02 02:55:14,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:14,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1794 transitions. [2023-04-02 02:55:14,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 02:55:14,817 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:14,817 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:14,826 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 02:55:15,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:15,026 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:15,027 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:15,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1123032406, now seen corresponding path program 1 times [2023-04-02 02:55:15,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:15,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203109654] [2023-04-02 02:55:15,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:15,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:15,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:15,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 02:55:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:55:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:15,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:55:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:15,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:15,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:15,769 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:15,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:15,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203109654] [2023-04-02 02:55:15,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203109654] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:15,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453516356] [2023-04-02 02:55:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:15,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:15,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:15,771 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:15,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 02:55:16,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 2961 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:16,215 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:55:16,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:16,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453516356] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:16,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:16,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:16,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211271269] [2023-04-02 02:55:16,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:16,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:16,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:16,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:16,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:16,241 INFO L87 Difference]: Start difference. First operand 1113 states and 1794 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:16,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:16,297 INFO L93 Difference]: Finished difference Result 2189 states and 3548 transitions. [2023-04-02 02:55:16,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:16,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 163 [2023-04-02 02:55:16,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:16,304 INFO L225 Difference]: With dead ends: 2189 [2023-04-02 02:55:16,305 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 02:55:16,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:16,309 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 17 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2921 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:16,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2921 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:55:16,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 02:55:16,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-04-02 02:55:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 828 states have (on average 1.6582125603864735) internal successors, (1373), 860 states have internal predecessors, (1373), 211 states have call successors, (211), 76 states have call predecessors, (211), 73 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:16,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1793 transitions. [2023-04-02 02:55:16,337 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1793 transitions. Word has length 163 [2023-04-02 02:55:16,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:16,337 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1793 transitions. [2023-04-02 02:55:16,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (30), 2 states have call predecessors, (30), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:16,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1793 transitions. [2023-04-02 02:55:16,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:55:16,341 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:16,341 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:16,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:16,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:16,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:16,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 833898582, now seen corresponding path program 1 times [2023-04-02 02:55:16,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:16,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671619626] [2023-04-02 02:55:16,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:16,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:16,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:16,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:17,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 02:55:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:55:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:55:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,542 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:55:17,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:17,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671619626] [2023-04-02 02:55:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671619626] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:17,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1430651763] [2023-04-02 02:55:17,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:17,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:17,545 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:17,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 02:55:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:17,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:17,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:18,015 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:18,015 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:18,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1430651763] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:18,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:18,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:55:18,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171809428] [2023-04-02 02:55:18,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:18,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:18,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:18,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:18,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:55:18,030 INFO L87 Difference]: Start difference. First operand 1113 states and 1793 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:18,127 INFO L93 Difference]: Finished difference Result 2188 states and 3548 transitions. [2023-04-02 02:55:18,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:55:18,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 164 [2023-04-02 02:55:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:18,133 INFO L225 Difference]: With dead ends: 2188 [2023-04-02 02:55:18,133 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 02:55:18,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:55:18,138 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 71 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:18,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2759 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:18,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 02:55:18,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-04-02 02:55:18,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 828 states have (on average 1.6521739130434783) internal successors, (1368), 860 states have internal predecessors, (1368), 211 states have call successors, (211), 76 states have call predecessors, (211), 73 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1788 transitions. [2023-04-02 02:55:18,165 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1788 transitions. Word has length 164 [2023-04-02 02:55:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:18,166 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1788 transitions. [2023-04-02 02:55:18,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1788 transitions. [2023-04-02 02:55:18,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-04-02 02:55:18,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:18,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:18,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-02 02:55:18,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-04-02 02:55:18,378 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:18,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:18,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2091192636, now seen corresponding path program 1 times [2023-04-02 02:55:18,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:18,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108394977] [2023-04-02 02:55:18,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:18,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:18,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:18,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:18,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:55:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 02:55:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:55:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 02:55:19,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:19,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:19,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:55:19,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108394977] [2023-04-02 02:55:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108394977] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:19,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691605279] [2023-04-02 02:55:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:19,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:19,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:19,373 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:19,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 02:55:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:19,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 2964 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:19,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:19,870 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:19,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:19,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691605279] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:19,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:19,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2023-04-02 02:55:19,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693147164] [2023-04-02 02:55:19,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:19,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:19,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:19,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:19,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:55:19,872 INFO L87 Difference]: Start difference. First operand 1113 states and 1788 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:20,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:20,003 INFO L93 Difference]: Finished difference Result 2188 states and 3538 transitions. [2023-04-02 02:55:20,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:55:20,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 166 [2023-04-02 02:55:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:20,009 INFO L225 Difference]: With dead ends: 2188 [2023-04-02 02:55:20,009 INFO L226 Difference]: Without dead ends: 1113 [2023-04-02 02:55:20,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:55:20,014 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 64 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:20,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 2761 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2023-04-02 02:55:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2023-04-02 02:55:20,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 828 states have (on average 1.646135265700483) internal successors, (1363), 860 states have internal predecessors, (1363), 211 states have call successors, (211), 76 states have call predecessors, (211), 73 states have return successors, (209), 200 states have call predecessors, (209), 203 states have call successors, (209) [2023-04-02 02:55:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1783 transitions. [2023-04-02 02:55:20,041 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1783 transitions. Word has length 166 [2023-04-02 02:55:20,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:20,041 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1783 transitions. [2023-04-02 02:55:20,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1783 transitions. [2023-04-02 02:55:20,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-04-02 02:55:20,044 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:20,045 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:20,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-04-02 02:55:20,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:20,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:20,254 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:20,254 INFO L85 PathProgramCache]: Analyzing trace with hash 475557344, now seen corresponding path program 1 times [2023-04-02 02:55:20,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:20,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325843820] [2023-04-02 02:55:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:20,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:20,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:55:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:55:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:21,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,300 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:55:21,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325843820] [2023-04-02 02:55:21,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325843820] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:21,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772202790] [2023-04-02 02:55:21,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:21,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:21,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:21,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:21,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 02:55:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:21,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 2966 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:21,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:21,756 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:21,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:21,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772202790] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:21,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:21,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:55:21,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89723319] [2023-04-02 02:55:21,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:21,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:21,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:21,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:21,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:55:21,759 INFO L87 Difference]: Start difference. First operand 1113 states and 1783 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:21,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:21,870 INFO L93 Difference]: Finished difference Result 2224 states and 3587 transitions. [2023-04-02 02:55:21,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:21,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 168 [2023-04-02 02:55:21,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:21,876 INFO L225 Difference]: With dead ends: 2224 [2023-04-02 02:55:21,876 INFO L226 Difference]: Without dead ends: 1152 [2023-04-02 02:55:21,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:55:21,881 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 115 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:21,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 2769 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2023-04-02 02:55:21,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2023-04-02 02:55:21,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 865 states have (on average 1.6473988439306357) internal successors, (1425), 897 states have internal predecessors, (1425), 212 states have call successors, (212), 77 states have call predecessors, (212), 74 states have return successors, (210), 201 states have call predecessors, (210), 204 states have call successors, (210) [2023-04-02 02:55:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1847 transitions. [2023-04-02 02:55:21,910 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1847 transitions. Word has length 168 [2023-04-02 02:55:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:21,910 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1847 transitions. [2023-04-02 02:55:21,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1847 transitions. [2023-04-02 02:55:21,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 02:55:21,913 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:21,913 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:21,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:22,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 02:55:22,122 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:22,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:22,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1919764714, now seen corresponding path program 1 times [2023-04-02 02:55:22,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:22,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675533066] [2023-04-02 02:55:22,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:22,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:22,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:22,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:22,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:23,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:23,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,050 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:55:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675533066] [2023-04-02 02:55:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675533066] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294622408] [2023-04-02 02:55:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:23,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:23,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:23,052 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:23,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 02:55:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:23,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 2967 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:23,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:23,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:23,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294622408] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:23,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:23,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:55:23,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203249423] [2023-04-02 02:55:23,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:23,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:23,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:23,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:23,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:55:23,581 INFO L87 Difference]: Start difference. First operand 1152 states and 1847 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:23,721 INFO L93 Difference]: Finished difference Result 2227 states and 3590 transitions. [2023-04-02 02:55:23,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:23,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 169 [2023-04-02 02:55:23,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:23,726 INFO L225 Difference]: With dead ends: 2227 [2023-04-02 02:55:23,726 INFO L226 Difference]: Without dead ends: 1152 [2023-04-02 02:55:23,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:55:23,730 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 109 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:23,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2769 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:23,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2023-04-02 02:55:23,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2023-04-02 02:55:23,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1152 states, 865 states have (on average 1.6416184971098267) internal successors, (1420), 897 states have internal predecessors, (1420), 212 states have call successors, (212), 77 states have call predecessors, (212), 74 states have return successors, (210), 201 states have call predecessors, (210), 204 states have call successors, (210) [2023-04-02 02:55:23,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1842 transitions. [2023-04-02 02:55:23,756 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1842 transitions. Word has length 169 [2023-04-02 02:55:23,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:23,757 INFO L495 AbstractCegarLoop]: Abstraction has 1152 states and 1842 transitions. [2023-04-02 02:55:23,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1842 transitions. [2023-04-02 02:55:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 02:55:23,759 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:23,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:23,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:23,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-02 02:55:23,969 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:23,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:23,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1692235381, now seen corresponding path program 1 times [2023-04-02 02:55:23,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:23,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099133227] [2023-04-02 02:55:23,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:23,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:23,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:24,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:24,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:24,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:24,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:24,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:24,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:24,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-02 02:55:24,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:24,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099133227] [2023-04-02 02:55:24,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099133227] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:24,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433661113] [2023-04-02 02:55:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:24,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:24,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:24,794 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:24,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 02:55:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 2963 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:55:25,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:25,350 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:25,350 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:25,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433661113] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:25,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:25,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 23 [2023-04-02 02:55:25,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765195154] [2023-04-02 02:55:25,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:25,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:55:25,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:55:25,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:55:25,353 INFO L87 Difference]: Start difference. First operand 1152 states and 1842 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:55:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:25,495 INFO L93 Difference]: Finished difference Result 2240 states and 3604 transitions. [2023-04-02 02:55:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:55:25,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 169 [2023-04-02 02:55:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:25,500 INFO L225 Difference]: With dead ends: 2240 [2023-04-02 02:55:25,500 INFO L226 Difference]: Without dead ends: 1168 [2023-04-02 02:55:25,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:55:25,505 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 80 mSDsluCounter, 6606 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 7563 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:25,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 7563 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1168 states. [2023-04-02 02:55:25,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1168 to 1161. [2023-04-02 02:55:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 869 states have (on average 1.6386651323360184) internal successors, (1424), 904 states have internal predecessors, (1424), 214 states have call successors, (214), 77 states have call predecessors, (214), 77 states have return successors, (217), 203 states have call predecessors, (217), 206 states have call successors, (217) [2023-04-02 02:55:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1855 transitions. [2023-04-02 02:55:25,533 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1855 transitions. Word has length 169 [2023-04-02 02:55:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:25,533 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 1855 transitions. [2023-04-02 02:55:25,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 5 states have call successors, (32), 2 states have call predecessors, (32), 5 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:55:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1855 transitions. [2023-04-02 02:55:25,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 02:55:25,536 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:25,536 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:25,545 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:25,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 02:55:25,745 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:25,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:25,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1510502132, now seen corresponding path program 1 times [2023-04-02 02:55:25,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:25,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277743914] [2023-04-02 02:55:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:25,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:25,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:25,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:26,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:26,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:55:26,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:55:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:55:26,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:26,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277743914] [2023-04-02 02:55:26,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277743914] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:26,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:55:26,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:55:26,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796073924] [2023-04-02 02:55:26,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:26,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:55:26,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:26,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:55:26,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:55:26,558 INFO L87 Difference]: Start difference. First operand 1161 states and 1855 transitions. Second operand has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:55:36,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:36,447 INFO L93 Difference]: Finished difference Result 2751 states and 4747 transitions. [2023-04-02 02:55:36,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-02 02:55:36,447 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 169 [2023-04-02 02:55:36,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:36,456 INFO L225 Difference]: With dead ends: 2751 [2023-04-02 02:55:36,456 INFO L226 Difference]: Without dead ends: 1756 [2023-04-02 02:55:36,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2023-04-02 02:55:36,460 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1916 mSDsluCounter, 986 mSDsCounter, 0 mSdLazyCounter, 9212 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1978 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 9919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 9212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:36,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1978 Valid, 1133 Invalid, 9919 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [707 Valid, 9212 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-04-02 02:55:36,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2023-04-02 02:55:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1181. [2023-04-02 02:55:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1181 states, 881 states have (on average 1.6299659477866062) internal successors, (1436), 916 states have internal predecessors, (1436), 216 states have call successors, (216), 77 states have call predecessors, (216), 83 states have return successors, (232), 211 states have call predecessors, (232), 208 states have call successors, (232) [2023-04-02 02:55:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1181 states to 1181 states and 1884 transitions. [2023-04-02 02:55:36,743 INFO L78 Accepts]: Start accepts. Automaton has 1181 states and 1884 transitions. Word has length 169 [2023-04-02 02:55:36,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:36,744 INFO L495 AbstractCegarLoop]: Abstraction has 1181 states and 1884 transitions. [2023-04-02 02:55:36,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.785714285714286) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:55:36,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1181 states and 1884 transitions. [2023-04-02 02:55:36,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 02:55:36,748 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:36,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:36,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 02:55:36,749 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:36,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:36,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1375243479, now seen corresponding path program 1 times [2023-04-02 02:55:36,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:36,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811496574] [2023-04-02 02:55:36,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:36,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:37,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:37,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:37,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:37,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:37,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:37,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:37,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:55:37,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:55:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:37,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:37,609 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:55:37,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:37,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811496574] [2023-04-02 02:55:37,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811496574] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:37,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:55:37,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:55:37,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758269318] [2023-04-02 02:55:37,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:37,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:55:37,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:37,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:55:37,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:37,610 INFO L87 Difference]: Start difference. First operand 1181 states and 1884 transitions. Second operand has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:55:46,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:46,350 INFO L93 Difference]: Finished difference Result 2785 states and 4795 transitions. [2023-04-02 02:55:46,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:55:46,350 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 170 [2023-04-02 02:55:46,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:46,358 INFO L225 Difference]: With dead ends: 2785 [2023-04-02 02:55:46,358 INFO L226 Difference]: Without dead ends: 1770 [2023-04-02 02:55:46,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:55:46,362 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 1745 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 7908 mSolverCounterSat, 661 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 8569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 661 IncrementalHoareTripleChecker+Valid, 7908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:46,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 1088 Invalid, 8569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [661 Valid, 7908 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 02:55:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2023-04-02 02:55:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1183. [2023-04-02 02:55:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 883 states have (on average 1.6285390713476784) internal successors, (1438), 916 states have internal predecessors, (1438), 216 states have call successors, (216), 77 states have call predecessors, (216), 83 states have return successors, (232), 213 states have call predecessors, (232), 208 states have call successors, (232) [2023-04-02 02:55:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1886 transitions. [2023-04-02 02:55:46,643 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1886 transitions. Word has length 170 [2023-04-02 02:55:46,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:46,645 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1886 transitions. [2023-04-02 02:55:46,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.384615384615385) internal successors, (96), 5 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:55:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1886 transitions. [2023-04-02 02:55:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-02 02:55:46,648 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:46,648 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:55:46,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 02:55:46,649 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:46,649 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:46,649 INFO L85 PathProgramCache]: Analyzing trace with hash -1118143919, now seen corresponding path program 1 times [2023-04-02 02:55:46,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:46,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127544081] [2023-04-02 02:55:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:46,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:46,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:46,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:46,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:47,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 02:55:47,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:55:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:47,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:55:47,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:55:47,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,349 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:55:47,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127544081] [2023-04-02 02:55:47,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127544081] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918914745] [2023-04-02 02:55:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:47,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:47,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:47,353 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:47,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 02:55:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:47,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 2968 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:55:47,744 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:55:47,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:47,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918914745] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:47,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:47,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2023-04-02 02:55:47,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670618811] [2023-04-02 02:55:47,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:47,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:55:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:55:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:55:47,788 INFO L87 Difference]: Start difference. First operand 1183 states and 1886 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:48,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:48,106 INFO L93 Difference]: Finished difference Result 2285 states and 3669 transitions. [2023-04-02 02:55:48,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:55:48,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 171 [2023-04-02 02:55:48,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:48,111 INFO L225 Difference]: With dead ends: 2285 [2023-04-02 02:55:48,112 INFO L226 Difference]: Without dead ends: 1183 [2023-04-02 02:55:48,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:48,115 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 108 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2769 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:48,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2769 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:48,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2023-04-02 02:55:48,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2023-04-02 02:55:48,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 883 states have (on average 1.622876557191393) internal successors, (1433), 916 states have internal predecessors, (1433), 216 states have call successors, (216), 77 states have call predecessors, (216), 83 states have return successors, (232), 213 states have call predecessors, (232), 208 states have call successors, (232) [2023-04-02 02:55:48,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1881 transitions. [2023-04-02 02:55:48,326 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1881 transitions. Word has length 171 [2023-04-02 02:55:48,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:48,326 INFO L495 AbstractCegarLoop]: Abstraction has 1183 states and 1881 transitions. [2023-04-02 02:55:48,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 3 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:55:48,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1881 transitions. [2023-04-02 02:55:48,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 02:55:48,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:48,329 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:55:48,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:48,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 02:55:48,541 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:48,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:48,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1610667575, now seen corresponding path program 1 times [2023-04-02 02:55:48,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:48,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008770367] [2023-04-02 02:55:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:48,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:48,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:48,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:49,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:55:49,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:55:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:49,358 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:55:49,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:49,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008770367] [2023-04-02 02:55:49,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008770367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:49,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:55:49,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:55:49,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029634100] [2023-04-02 02:55:49,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:49,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:55:49,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:49,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:55:49,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:55:49,360 INFO L87 Difference]: Start difference. First operand 1183 states and 1881 transitions. Second operand has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:55:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:55,814 INFO L93 Difference]: Finished difference Result 2789 states and 4760 transitions. [2023-04-02 02:55:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:55:55,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 170 [2023-04-02 02:55:55,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:55,821 INFO L225 Difference]: With dead ends: 2789 [2023-04-02 02:55:55,822 INFO L226 Difference]: Without dead ends: 1772 [2023-04-02 02:55:55,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:55:55,825 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1693 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 5482 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1761 SdHoareTripleChecker+Valid, 792 SdHoareTripleChecker+Invalid, 6112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 5482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:55,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1761 Valid, 792 Invalid, 6112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [630 Valid, 5482 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 02:55:55,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2023-04-02 02:55:56,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1193. [2023-04-02 02:55:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 891 states have (on average 1.6195286195286196) internal successors, (1443), 924 states have internal predecessors, (1443), 216 states have call successors, (216), 77 states have call predecessors, (216), 85 states have return successors, (234), 215 states have call predecessors, (234), 208 states have call successors, (234) [2023-04-02 02:55:56,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1893 transitions. [2023-04-02 02:55:56,067 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1893 transitions. Word has length 170 [2023-04-02 02:55:56,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:56,067 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1893 transitions. [2023-04-02 02:55:56,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.727272727272727) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:55:56,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1893 transitions. [2023-04-02 02:55:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-04-02 02:55:56,070 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:56,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2023-04-02 02:55:56,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 02:55:56,071 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:56,071 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:56,071 INFO L85 PathProgramCache]: Analyzing trace with hash 84568052, now seen corresponding path program 1 times [2023-04-02 02:55:56,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:56,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121919674] [2023-04-02 02:55:56,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:56,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:56,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:56,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:55:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 02:55:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:55:56,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:56,951 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:55:56,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:56,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121919674] [2023-04-02 02:55:56,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121919674] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:55:56,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1990665406] [2023-04-02 02:55:56,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:56,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:56,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:55:56,967 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:55:56,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 02:55:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:57,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 2965 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 02:55:57,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:55:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:55:57,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:55:57,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1990665406] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:57,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:55:57,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 15 [2023-04-02 02:55:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513930336] [2023-04-02 02:55:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:57,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:55:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:55:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:55:57,373 INFO L87 Difference]: Start difference. First operand 1193 states and 1893 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:57,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:55:57,896 INFO L93 Difference]: Finished difference Result 3157 states and 5135 transitions. [2023-04-02 02:55:57,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:55:57,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 173 [2023-04-02 02:55:57,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:55:57,905 INFO L225 Difference]: With dead ends: 3157 [2023-04-02 02:55:57,905 INFO L226 Difference]: Without dead ends: 2130 [2023-04-02 02:55:57,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 227 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:55:57,910 INFO L413 NwaCegarLoop]: 940 mSDtfsCounter, 909 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 909 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:55:57,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [909 Valid, 1689 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:55:57,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2023-04-02 02:55:58,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2113. [2023-04-02 02:55:58,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2113 states, 1574 states have (on average 1.604828462515883) internal successors, (2526), 1632 states have internal predecessors, (2526), 389 states have call successors, (389), 134 states have call predecessors, (389), 149 states have return successors, (451), 394 states have call predecessors, (451), 381 states have call successors, (451) [2023-04-02 02:55:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 3366 transitions. [2023-04-02 02:55:58,342 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 3366 transitions. Word has length 173 [2023-04-02 02:55:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:55:58,342 INFO L495 AbstractCegarLoop]: Abstraction has 2113 states and 3366 transitions. [2023-04-02 02:55:58,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:55:58,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 3366 transitions. [2023-04-02 02:55:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 02:55:58,345 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:55:58,345 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2023-04-02 02:55:58,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 02:55:58,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:55:58,554 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:55:58,554 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:55:58,554 INFO L85 PathProgramCache]: Analyzing trace with hash -112546848, now seen corresponding path program 1 times [2023-04-02 02:55:58,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:55:58,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40089241] [2023-04-02 02:55:58,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:55:58,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:55:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:58,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:55:58,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:55:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:58,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:55:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:55:59,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:55:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:55:59,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:55:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:55:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:55:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:55:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:55:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:55:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:55:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:55:59,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:55:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:55:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:55:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:55:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:55:59,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:55:59,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40089241] [2023-04-02 02:55:59,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40089241] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:55:59,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:55:59,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:55:59,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629771265] [2023-04-02 02:55:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:55:59,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:55:59,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:55:59,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:55:59,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:55:59,331 INFO L87 Difference]: Start difference. First operand 2113 states and 3366 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:56:08,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:08,489 INFO L93 Difference]: Finished difference Result 4706 states and 8101 transitions. [2023-04-02 02:56:08,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:56:08,490 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) Word has length 174 [2023-04-02 02:56:08,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:08,508 INFO L225 Difference]: With dead ends: 4706 [2023-04-02 02:56:08,508 INFO L226 Difference]: Without dead ends: 3108 [2023-04-02 02:56:08,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:56:08,515 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 2513 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 7739 mSolverCounterSat, 933 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 8672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 933 IncrementalHoareTripleChecker+Valid, 7739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:08,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 928 Invalid, 8672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [933 Valid, 7739 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 02:56:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3108 states. [2023-04-02 02:56:09,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3108 to 2117. [2023-04-02 02:56:09,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1578 states have (on average 1.603295310519645) internal successors, (2530), 1632 states have internal predecessors, (2530), 389 states have call successors, (389), 134 states have call predecessors, (389), 149 states have return successors, (451), 398 states have call predecessors, (451), 381 states have call successors, (451) [2023-04-02 02:56:09,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3370 transitions. [2023-04-02 02:56:09,070 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3370 transitions. Word has length 174 [2023-04-02 02:56:09,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:09,070 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 3370 transitions. [2023-04-02 02:56:09,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 5 states have internal predecessors, (100), 3 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (26), 4 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:56:09,071 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3370 transitions. [2023-04-02 02:56:09,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-04-02 02:56:09,073 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:09,073 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2023-04-02 02:56:09,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 02:56:09,073 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:09,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1357690620, now seen corresponding path program 1 times [2023-04-02 02:56:09,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:09,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380155118] [2023-04-02 02:56:09,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:09,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:09,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:56:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:56:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:56:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:09,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:56:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:56:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:09,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:09,939 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:56:09,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:09,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380155118] [2023-04-02 02:56:09,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380155118] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:56:09,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724601263] [2023-04-02 02:56:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:09,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:56:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:56:09,941 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:56:09,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 02:56:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:10,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 2990 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 02:56:10,372 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:56:10,400 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:56:10,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:56:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724601263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:56:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 15 [2023-04-02 02:56:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536182601] [2023-04-02 02:56:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:10,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:56:10,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:56:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:56:10,402 INFO L87 Difference]: Start difference. First operand 2117 states and 3370 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:56:11,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:11,108 INFO L93 Difference]: Finished difference Result 4450 states and 7219 transitions. [2023-04-02 02:56:11,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:56:11,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 180 [2023-04-02 02:56:11,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:11,121 INFO L225 Difference]: With dead ends: 4450 [2023-04-02 02:56:11,121 INFO L226 Difference]: Without dead ends: 2848 [2023-04-02 02:56:11,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:56:11,127 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 968 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 968 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:11,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [968 Valid, 1781 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:56:11,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2848 states. [2023-04-02 02:56:11,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2827. [2023-04-02 02:56:11,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2111 states have (on average 1.5821885362387493) internal successors, (3340), 2176 states have internal predecessors, (3340), 510 states have call successors, (510), 182 states have call predecessors, (510), 205 states have return successors, (677), 528 states have call predecessors, (677), 502 states have call successors, (677) [2023-04-02 02:56:11,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 4527 transitions. [2023-04-02 02:56:11,715 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 4527 transitions. Word has length 180 [2023-04-02 02:56:11,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:11,716 INFO L495 AbstractCegarLoop]: Abstraction has 2827 states and 4527 transitions. [2023-04-02 02:56:11,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:56:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 4527 transitions. [2023-04-02 02:56:11,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:56:11,718 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:11,718 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:56:11,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 02:56:11,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:56:11,928 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:11,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:11,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1784667873, now seen corresponding path program 1 times [2023-04-02 02:56:11,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:11,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037714861] [2023-04-02 02:56:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:11,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:12,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:12,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:12,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:12,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:12,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:56:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:56:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:56:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:56:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 02:56:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:12,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:12,872 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:56:12,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:12,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037714861] [2023-04-02 02:56:12,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037714861] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:12,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:56:12,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 02:56:12,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378421753] [2023-04-02 02:56:12,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:12,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 02:56:12,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:12,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 02:56:12,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:56:12,875 INFO L87 Difference]: Start difference. First operand 2827 states and 4527 transitions. Second operand has 15 states, 15 states have (on average 7.0) internal successors, (105), 9 states have internal predecessors, (105), 6 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2023-04-02 02:56:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:28,698 INFO L93 Difference]: Finished difference Result 6978 states and 12102 transitions. [2023-04-02 02:56:28,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-04-02 02:56:28,699 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 9 states have internal predecessors, (105), 6 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) Word has length 184 [2023-04-02 02:56:28,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:28,727 INFO L225 Difference]: With dead ends: 6978 [2023-04-02 02:56:28,728 INFO L226 Difference]: Without dead ends: 4666 [2023-04-02 02:56:28,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=418, Invalid=1388, Unknown=0, NotChecked=0, Total=1806 [2023-04-02 02:56:28,736 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 3266 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 11097 mSolverCounterSat, 1360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3310 SdHoareTripleChecker+Valid, 1298 SdHoareTripleChecker+Invalid, 12457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1360 IncrementalHoareTripleChecker+Valid, 11097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:28,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3310 Valid, 1298 Invalid, 12457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1360 Valid, 11097 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-04-02 02:56:28,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2023-04-02 02:56:29,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3308. [2023-04-02 02:56:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3308 states, 2487 states have (on average 1.558906312826699) internal successors, (3877), 2547 states have internal predecessors, (3877), 572 states have call successors, (572), 214 states have call predecessors, (572), 248 states have return successors, (874), 606 states have call predecessors, (874), 564 states have call successors, (874) [2023-04-02 02:56:29,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 5323 transitions. [2023-04-02 02:56:29,496 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 5323 transitions. Word has length 184 [2023-04-02 02:56:29,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:29,496 INFO L495 AbstractCegarLoop]: Abstraction has 3308 states and 5323 transitions. [2023-04-02 02:56:29,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.0) internal successors, (105), 9 states have internal predecessors, (105), 6 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (27), 6 states have call predecessors, (27), 6 states have call successors, (27) [2023-04-02 02:56:29,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 5323 transitions. [2023-04-02 02:56:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 02:56:29,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:29,499 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:56:29,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 02:56:29,500 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:29,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:29,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1079489302, now seen corresponding path program 1 times [2023-04-02 02:56:29,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:29,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756301253] [2023-04-02 02:56:29,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:29,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:29,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:29,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:29,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:30,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:56:30,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:56:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:56:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:30,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:56:30,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:56:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:30,245 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:56:30,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:30,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756301253] [2023-04-02 02:56:30,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756301253] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:30,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:56:30,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:56:30,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425430379] [2023-04-02 02:56:30,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:30,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:56:30,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:30,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:56:30,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:56:30,246 INFO L87 Difference]: Start difference. First operand 3308 states and 5323 transitions. Second operand has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (33), 8 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-04-02 02:56:39,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:39,678 INFO L93 Difference]: Finished difference Result 7711 states and 13086 transitions. [2023-04-02 02:56:39,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 02:56:39,679 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (33), 8 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) Word has length 187 [2023-04-02 02:56:39,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:39,702 INFO L225 Difference]: With dead ends: 7711 [2023-04-02 02:56:39,703 INFO L226 Difference]: Without dead ends: 4564 [2023-04-02 02:56:39,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=205, Invalid=665, Unknown=0, NotChecked=0, Total=870 [2023-04-02 02:56:39,711 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2522 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 7479 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2590 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 8397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 7479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:39,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2590 Valid, 867 Invalid, 8397 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [918 Valid, 7479 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 02:56:39,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4564 states. [2023-04-02 02:56:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4564 to 3315. [2023-04-02 02:56:40,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 2490 states have (on average 1.5582329317269077) internal successors, (3880), 2552 states have internal predecessors, (3880), 574 states have call successors, (574), 214 states have call predecessors, (574), 250 states have return successors, (879), 608 states have call predecessors, (879), 566 states have call successors, (879) [2023-04-02 02:56:40,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5333 transitions. [2023-04-02 02:56:40,509 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5333 transitions. Word has length 187 [2023-04-02 02:56:40,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:40,510 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5333 transitions. [2023-04-02 02:56:40,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 9.166666666666666) internal successors, (110), 6 states have internal predecessors, (110), 5 states have call successors, (33), 8 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 5 states have call successors, (29) [2023-04-02 02:56:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5333 transitions. [2023-04-02 02:56:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-02 02:56:40,512 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:40,513 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:56:40,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 02:56:40,513 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:40,513 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:40,513 INFO L85 PathProgramCache]: Analyzing trace with hash 407905710, now seen corresponding path program 1 times [2023-04-02 02:56:40,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:40,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618396677] [2023-04-02 02:56:40,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:40,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:40,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:41,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:56:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:56:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:56:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 02:56:41,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:56:41,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:56:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:41,164 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:56:41,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:41,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618396677] [2023-04-02 02:56:41,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618396677] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:41,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:56:41,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:56:41,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367658592] [2023-04-02 02:56:41,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:41,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:56:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:56:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:56:41,166 INFO L87 Difference]: Start difference. First operand 3315 states and 5333 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:56:49,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:49,087 INFO L93 Difference]: Finished difference Result 7762 states and 13149 transitions. [2023-04-02 02:56:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:56:49,089 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 190 [2023-04-02 02:56:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:49,111 INFO L225 Difference]: With dead ends: 7762 [2023-04-02 02:56:49,112 INFO L226 Difference]: Without dead ends: 4529 [2023-04-02 02:56:49,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=92, Invalid=148, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:56:49,119 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 3697 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 4011 mSolverCounterSat, 1293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3766 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1293 IncrementalHoareTripleChecker+Valid, 4011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:49,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3766 Valid, 488 Invalid, 5304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1293 Valid, 4011 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 02:56:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4529 states. [2023-04-02 02:56:49,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4529 to 3299. [2023-04-02 02:56:49,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3299 states, 2478 states have (on average 1.5564971751412429) internal successors, (3857), 2538 states have internal predecessors, (3857), 572 states have call successors, (572), 214 states have call predecessors, (572), 248 states have return successors, (874), 606 states have call predecessors, (874), 564 states have call successors, (874) [2023-04-02 02:56:49,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 5303 transitions. [2023-04-02 02:56:49,952 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 5303 transitions. Word has length 190 [2023-04-02 02:56:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:49,953 INFO L495 AbstractCegarLoop]: Abstraction has 3299 states and 5303 transitions. [2023-04-02 02:56:49,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 4 states have internal predecessors, (111), 3 states have call successors, (32), 8 states have call predecessors, (32), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:56:49,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 5303 transitions. [2023-04-02 02:56:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 02:56:49,955 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:49,955 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:56:49,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 02:56:49,956 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:49,956 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:49,956 INFO L85 PathProgramCache]: Analyzing trace with hash 278530340, now seen corresponding path program 1 times [2023-04-02 02:56:49,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:49,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427996612] [2023-04-02 02:56:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:49,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:50,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:50,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:50,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:56:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:56:50,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:56:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:56:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:56:51,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427996612] [2023-04-02 02:56:51,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427996612] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:56:51,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791748876] [2023-04-02 02:56:51,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:51,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:56:51,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:56:51,092 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:56:51,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 02:56:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:51,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:56:51,519 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:56:51,607 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:56:51,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:56:51,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791748876] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:51,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:56:51,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2023-04-02 02:56:51,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663526566] [2023-04-02 02:56:51,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:51,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:56:51,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:51,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:56:51,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=537, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:56:51,608 INFO L87 Difference]: Start difference. First operand 3299 states and 5303 transitions. Second operand has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2023-04-02 02:56:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:52,414 INFO L93 Difference]: Finished difference Result 6454 states and 10417 transitions. [2023-04-02 02:56:52,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:56:52,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) Word has length 187 [2023-04-02 02:56:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:52,428 INFO L225 Difference]: With dead ends: 6454 [2023-04-02 02:56:52,428 INFO L226 Difference]: Without dead ends: 3298 [2023-04-02 02:56:52,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2023-04-02 02:56:52,437 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 73 mSDsluCounter, 4716 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 5677 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:52,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 5677 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:56:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2023-04-02 02:56:53,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3293. [2023-04-02 02:56:53,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2472 states have (on average 1.5554207119741101) internal successors, (3845), 2532 states have internal predecessors, (3845), 572 states have call successors, (572), 214 states have call predecessors, (572), 248 states have return successors, (874), 606 states have call predecessors, (874), 564 states have call successors, (874) [2023-04-02 02:56:53,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5291 transitions. [2023-04-02 02:56:53,274 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5291 transitions. Word has length 187 [2023-04-02 02:56:53,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:53,274 INFO L495 AbstractCegarLoop]: Abstraction has 3293 states and 5291 transitions. [2023-04-02 02:56:53,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 4 states have call predecessors, (29), 4 states have call successors, (29) [2023-04-02 02:56:53,274 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5291 transitions. [2023-04-02 02:56:53,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 02:56:53,277 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:53,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2023-04-02 02:56:53,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 02:56:53,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-04-02 02:56:53,487 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:53,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:53,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1145152348, now seen corresponding path program 1 times [2023-04-02 02:56:53,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:53,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202659325] [2023-04-02 02:56:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:53,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:53,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:53,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:53,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:53,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:53,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:53,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:54,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:54,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:54,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:56:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:54,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:56:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:54,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:56:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:56:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:56:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 02:56:54,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202659325] [2023-04-02 02:56:54,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202659325] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:56:54,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771123772] [2023-04-02 02:56:54,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:54,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:56:54,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:56:54,504 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:56:54,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 02:56:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:54,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 3005 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:56:54,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:56:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:56:55,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:56:55,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771123772] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:55,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:56:55,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 27 [2023-04-02 02:56:55,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791444276] [2023-04-02 02:56:55,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:55,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:56:55,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:55,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:56:55,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2023-04-02 02:56:55,072 INFO L87 Difference]: Start difference. First operand 3293 states and 5291 transitions. Second operand has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-02 02:56:55,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:56:55,986 INFO L93 Difference]: Finished difference Result 6442 states and 10394 transitions. [2023-04-02 02:56:55,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:56:55,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) Word has length 187 [2023-04-02 02:56:55,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:56:55,999 INFO L225 Difference]: With dead ends: 6442 [2023-04-02 02:56:55,999 INFO L226 Difference]: Without dead ends: 3293 [2023-04-02 02:56:56,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2023-04-02 02:56:56,008 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 71 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 7494 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:56:56,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 7494 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:56:56,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3293 states. [2023-04-02 02:56:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3293 to 3293. [2023-04-02 02:56:56,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3293 states, 2472 states have (on average 1.5554207119741101) internal successors, (3845), 2532 states have internal predecessors, (3845), 572 states have call successors, (572), 214 states have call predecessors, (572), 248 states have return successors, (873), 606 states have call predecessors, (873), 564 states have call successors, (873) [2023-04-02 02:56:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3293 states to 3293 states and 5290 transitions. [2023-04-02 02:56:56,833 INFO L78 Accepts]: Start accepts. Automaton has 3293 states and 5290 transitions. Word has length 187 [2023-04-02 02:56:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:56:56,834 INFO L495 AbstractCegarLoop]: Abstraction has 3293 states and 5290 transitions. [2023-04-02 02:56:56,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 5 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (30), 5 states have call predecessors, (30), 5 states have call successors, (30) [2023-04-02 02:56:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3293 states and 5290 transitions. [2023-04-02 02:56:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-04-02 02:56:56,836 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:56:56,836 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-04-02 02:56:56,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-02 02:56:57,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:56:57,044 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:56:57,044 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:56:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash -364579045, now seen corresponding path program 1 times [2023-04-02 02:56:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:56:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127152789] [2023-04-02 02:56:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:56:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:56:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:56:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:56:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:56:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:56:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:56:57,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:57,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:56:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:56:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:56:57,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:56:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:56:57,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:56:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:56:57,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:56:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:56:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:56:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:56:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-02 02:56:57,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:56:57,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127152789] [2023-04-02 02:56:57,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127152789] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:56:57,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:56:57,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:56:57,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692178696] [2023-04-02 02:56:57,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:56:57,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:56:57,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:56:57,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:56:57,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:56:57,822 INFO L87 Difference]: Start difference. First operand 3293 states and 5290 transitions. Second operand has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:07,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:07,522 INFO L93 Difference]: Finished difference Result 7740 states and 13098 transitions. [2023-04-02 02:57:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-04-02 02:57:07,523 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) Word has length 189 [2023-04-02 02:57:07,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:07,541 INFO L225 Difference]: With dead ends: 7740 [2023-04-02 02:57:07,541 INFO L226 Difference]: Without dead ends: 4530 [2023-04-02 02:57:07,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=225, Invalid=1107, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 02:57:07,550 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1818 mSDsluCounter, 1134 mSDsCounter, 0 mSdLazyCounter, 10444 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1258 SdHoareTripleChecker+Invalid, 11168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 10444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:07,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 1258 Invalid, 11168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [724 Valid, 10444 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 02:57:07,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4530 states. [2023-04-02 02:57:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4530 to 3296. [2023-04-02 02:57:08,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3296 states, 2474 states have (on average 1.5549717057396928) internal successors, (3847), 2534 states have internal predecessors, (3847), 572 states have call successors, (572), 214 states have call predecessors, (572), 249 states have return successors, (874), 607 states have call predecessors, (874), 564 states have call successors, (874) [2023-04-02 02:57:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3296 states to 3296 states and 5293 transitions. [2023-04-02 02:57:08,424 INFO L78 Accepts]: Start accepts. Automaton has 3296 states and 5293 transitions. Word has length 189 [2023-04-02 02:57:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:08,424 INFO L495 AbstractCegarLoop]: Abstraction has 3296 states and 5293 transitions. [2023-04-02 02:57:08,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 8 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 3296 states and 5293 transitions. [2023-04-02 02:57:08,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-02 02:57:08,427 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:08,427 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:08,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 02:57:08,427 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:08,427 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash 783601770, now seen corresponding path program 1 times [2023-04-02 02:57:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:08,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494925804] [2023-04-02 02:57:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:08,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:08,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:57:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:08,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:08,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:09,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 02:57:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:09,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:09,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:57:09,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:09,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494925804] [2023-04-02 02:57:09,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494925804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:09,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:57:09,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:57:09,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076867757] [2023-04-02 02:57:09,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:09,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:57:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:09,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:57:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:57:09,125 INFO L87 Difference]: Start difference. First operand 3296 states and 5293 transitions. Second operand has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:19,235 INFO L93 Difference]: Finished difference Result 7764 states and 13146 transitions. [2023-04-02 02:57:19,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 02:57:19,236 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) Word has length 190 [2023-04-02 02:57:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:19,254 INFO L225 Difference]: With dead ends: 7764 [2023-04-02 02:57:19,254 INFO L226 Difference]: Without dead ends: 4551 [2023-04-02 02:57:19,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 02:57:19,263 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 2505 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 10672 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2573 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 11601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 10672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:19,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2573 Valid, 1226 Invalid, 11601 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [929 Valid, 10672 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 02:57:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4551 states. [2023-04-02 02:57:20,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4551 to 3308. [2023-04-02 02:57:20,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3308 states, 2482 states have (on average 1.5551974214343272) internal successors, (3860), 2545 states have internal predecessors, (3860), 573 states have call successors, (573), 214 states have call predecessors, (573), 252 states have return successors, (879), 608 states have call predecessors, (879), 565 states have call successors, (879) [2023-04-02 02:57:20,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 5312 transitions. [2023-04-02 02:57:20,084 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 5312 transitions. Word has length 190 [2023-04-02 02:57:20,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:20,085 INFO L495 AbstractCegarLoop]: Abstraction has 3308 states and 5312 transitions. [2023-04-02 02:57:20,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.357142857142858) internal successors, (117), 9 states have internal predecessors, (117), 6 states have call successors, (34), 8 states have call predecessors, (34), 5 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:20,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 5312 transitions. [2023-04-02 02:57:20,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-02 02:57:20,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:20,087 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:20,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 02:57:20,088 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:20,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:20,088 INFO L85 PathProgramCache]: Analyzing trace with hash -329592316, now seen corresponding path program 1 times [2023-04-02 02:57:20,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:20,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019042928] [2023-04-02 02:57:20,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:20,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:20,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:20,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:57:20,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:57:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:20,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 02:57:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:20,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:20,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:20,857 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-02 02:57:20,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:20,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019042928] [2023-04-02 02:57:20,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019042928] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:20,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:57:20,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:57:20,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403102544] [2023-04-02 02:57:20,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:20,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:57:20,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:20,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:57:20,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:57:20,858 INFO L87 Difference]: Start difference. First operand 3308 states and 5312 transitions. Second operand has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 9 states have internal predecessors, (121), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:30,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:30,556 INFO L93 Difference]: Finished difference Result 7797 states and 13225 transitions. [2023-04-02 02:57:30,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 02:57:30,556 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 9 states have internal predecessors, (121), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) Word has length 193 [2023-04-02 02:57:30,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:30,573 INFO L225 Difference]: With dead ends: 7797 [2023-04-02 02:57:30,573 INFO L226 Difference]: Without dead ends: 4573 [2023-04-02 02:57:30,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=243, Invalid=1163, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 02:57:30,581 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 2991 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 10538 mSolverCounterSat, 1112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 11650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1112 IncrementalHoareTripleChecker+Valid, 10538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:30,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3059 Valid, 1246 Invalid, 11650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1112 Valid, 10538 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 02:57:30,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4573 states. [2023-04-02 02:57:31,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4573 to 3312. [2023-04-02 02:57:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2485 states have (on average 1.5549295774647887) internal successors, (3864), 2548 states have internal predecessors, (3864), 573 states have call successors, (573), 214 states have call predecessors, (573), 253 states have return successors, (880), 609 states have call predecessors, (880), 565 states have call successors, (880) [2023-04-02 02:57:31,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 5317 transitions. [2023-04-02 02:57:31,437 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 5317 transitions. Word has length 193 [2023-04-02 02:57:31,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:31,437 INFO L495 AbstractCegarLoop]: Abstraction has 3312 states and 5317 transitions. [2023-04-02 02:57:31,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 8.642857142857142) internal successors, (121), 9 states have internal predecessors, (121), 6 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (30), 4 states have call predecessors, (30), 6 states have call successors, (30) [2023-04-02 02:57:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 5317 transitions. [2023-04-02 02:57:31,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-04-02 02:57:31,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:31,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:31,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 02:57:31,439 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:31,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:31,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1523757153, now seen corresponding path program 1 times [2023-04-02 02:57:31,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:31,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322861829] [2023-04-02 02:57:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:31,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:31,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:31,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:57:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:31,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:57:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 02:57:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:57:32,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:32,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322861829] [2023-04-02 02:57:32,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322861829] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:57:32,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131227719] [2023-04-02 02:57:32,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:32,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:57:32,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:57:32,067 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:57:32,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 02:57:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:32,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 3015 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:57:32,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:57:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:57:32,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:57:32,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131227719] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:32,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:57:32,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:57:32,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877870644] [2023-04-02 02:57:32,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:32,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:57:32,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:32,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:57:32,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:57:32,629 INFO L87 Difference]: Start difference. First operand 3312 states and 5317 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:57:33,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:33,681 INFO L93 Difference]: Finished difference Result 3366 states and 5400 transitions. [2023-04-02 02:57:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:57:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 194 [2023-04-02 02:57:33,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:33,693 INFO L225 Difference]: With dead ends: 3366 [2023-04-02 02:57:33,693 INFO L226 Difference]: Without dead ends: 3349 [2023-04-02 02:57:33,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:57:33,694 INFO L413 NwaCegarLoop]: 964 mSDtfsCounter, 833 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1697 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:33,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1697 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 02:57:33,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2023-04-02 02:57:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3321. [2023-04-02 02:57:34,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3321 states, 2494 states have (on average 1.5529270248596632) internal successors, (3873), 2557 states have internal predecessors, (3873), 573 states have call successors, (573), 214 states have call predecessors, (573), 253 states have return successors, (880), 609 states have call predecessors, (880), 565 states have call successors, (880) [2023-04-02 02:57:34,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3321 states to 3321 states and 5326 transitions. [2023-04-02 02:57:34,496 INFO L78 Accepts]: Start accepts. Automaton has 3321 states and 5326 transitions. Word has length 194 [2023-04-02 02:57:34,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:34,496 INFO L495 AbstractCegarLoop]: Abstraction has 3321 states and 5326 transitions. [2023-04-02 02:57:34,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:57:34,496 INFO L276 IsEmpty]: Start isEmpty. Operand 3321 states and 5326 transitions. [2023-04-02 02:57:34,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-02 02:57:34,498 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:34,498 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:34,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-04-02 02:57:34,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-04-02 02:57:34,705 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:34,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:34,705 INFO L85 PathProgramCache]: Analyzing trace with hash 2119902047, now seen corresponding path program 1 times [2023-04-02 02:57:34,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:34,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038869700] [2023-04-02 02:57:34,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:34,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:34,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:34,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:34,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:35,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:35,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:35,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:57:35,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:35,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:35,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:57:35,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:57:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:57:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:57:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:57:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,617 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 02:57:35,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:35,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038869700] [2023-04-02 02:57:35,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038869700] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:57:35,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106785060] [2023-04-02 02:57:35,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:35,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:57:35,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:57:35,619 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:57:35,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 02:57:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:35,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 3025 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:57:36,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:57:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:57:36,059 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:57:36,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106785060] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:36,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:57:36,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [20] total 23 [2023-04-02 02:57:36,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017939852] [2023-04-02 02:57:36,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:36,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:57:36,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:36,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:57:36,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:57:36,060 INFO L87 Difference]: Start difference. First operand 3321 states and 5326 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2023-04-02 02:57:37,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:37,079 INFO L93 Difference]: Finished difference Result 6807 states and 11065 transitions. [2023-04-02 02:57:37,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:57:37,080 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 197 [2023-04-02 02:57:37,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:37,093 INFO L225 Difference]: With dead ends: 6807 [2023-04-02 02:57:37,093 INFO L226 Difference]: Without dead ends: 3941 [2023-04-02 02:57:37,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 253 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:57:37,101 INFO L413 NwaCegarLoop]: 983 mSDtfsCounter, 371 mSDsluCounter, 3693 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:37,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 4676 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:57:37,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3941 states. [2023-04-02 02:57:38,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3941 to 3941. [2023-04-02 02:57:38,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3026 states have (on average 1.5568407138136153) internal successors, (4711), 3099 states have internal predecessors, (4711), 636 states have call successors, (636), 229 states have call predecessors, (636), 278 states have return successors, (943), 672 states have call predecessors, (943), 628 states have call successors, (943) [2023-04-02 02:57:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6290 transitions. [2023-04-02 02:57:38,029 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6290 transitions. Word has length 197 [2023-04-02 02:57:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:38,029 INFO L495 AbstractCegarLoop]: Abstraction has 3941 states and 6290 transitions. [2023-04-02 02:57:38,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2023-04-02 02:57:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6290 transitions. [2023-04-02 02:57:38,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-04-02 02:57:38,032 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:38,032 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:38,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 02:57:38,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-04-02 02:57:38,233 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:38,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1768483164, now seen corresponding path program 1 times [2023-04-02 02:57:38,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:38,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902818923] [2023-04-02 02:57:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:38,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:38,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:38,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:57:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:57:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 02:57:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:38,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:57:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:38,890 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:57:38,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:38,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902818923] [2023-04-02 02:57:38,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902818923] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:38,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:57:38,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:57:38,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270429339] [2023-04-02 02:57:38,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:38,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:57:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:38,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:57:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:57:38,892 INFO L87 Difference]: Start difference. First operand 3941 states and 6290 transitions. Second operand has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-04-02 02:57:47,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:47,265 INFO L93 Difference]: Finished difference Result 5220 states and 8963 transitions. [2023-04-02 02:57:47,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-04-02 02:57:47,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 200 [2023-04-02 02:57:47,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:47,281 INFO L225 Difference]: With dead ends: 5220 [2023-04-02 02:57:47,281 INFO L226 Difference]: Without dead ends: 5203 [2023-04-02 02:57:47,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=276, Invalid=914, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 02:57:47,284 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 2334 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 5462 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 6312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 5462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:47,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 607 Invalid, 6312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 5462 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 02:57:47,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5203 states. [2023-04-02 02:57:48,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5203 to 3941. [2023-04-02 02:57:48,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3941 states, 3026 states have (on average 1.555188367481824) internal successors, (4706), 3099 states have internal predecessors, (4706), 636 states have call successors, (636), 229 states have call predecessors, (636), 278 states have return successors, (943), 672 states have call predecessors, (943), 628 states have call successors, (943) [2023-04-02 02:57:48,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3941 states to 3941 states and 6285 transitions. [2023-04-02 02:57:48,267 INFO L78 Accepts]: Start accepts. Automaton has 3941 states and 6285 transitions. Word has length 200 [2023-04-02 02:57:48,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:48,267 INFO L495 AbstractCegarLoop]: Abstraction has 3941 states and 6285 transitions. [2023-04-02 02:57:48,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.909090909090908) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2023-04-02 02:57:48,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3941 states and 6285 transitions. [2023-04-02 02:57:48,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-04-02 02:57:48,270 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:48,270 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:48,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 02:57:48,270 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:48,270 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:48,270 INFO L85 PathProgramCache]: Analyzing trace with hash -694202380, now seen corresponding path program 1 times [2023-04-02 02:57:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:48,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505888602] [2023-04-02 02:57:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:48,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:48,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:57:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:48,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:57:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:57:48,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:57:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:48,905 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:57:48,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505888602] [2023-04-02 02:57:48,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505888602] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:57:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739599804] [2023-04-02 02:57:48,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:48,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:57:48,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:57:48,907 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:57:48,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 02:57:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:49,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 3075 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:57:49,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:57:49,310 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:57:49,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:57:49,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739599804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:49,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:57:49,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2023-04-02 02:57:49,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662817730] [2023-04-02 02:57:49,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:49,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:57:49,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:49,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:57:49,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:57:49,314 INFO L87 Difference]: Start difference. First operand 3941 states and 6285 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-02 02:57:50,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:57:50,280 INFO L93 Difference]: Finished difference Result 7837 states and 12521 transitions. [2023-04-02 02:57:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:57:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 216 [2023-04-02 02:57:50,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:57:50,293 INFO L225 Difference]: With dead ends: 7837 [2023-04-02 02:57:50,293 INFO L226 Difference]: Without dead ends: 3921 [2023-04-02 02:57:50,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:57:50,303 INFO L413 NwaCegarLoop]: 960 mSDtfsCounter, 8 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:57:50,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2871 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:57:50,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3921 states. [2023-04-02 02:57:51,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3921 to 3921. [2023-04-02 02:57:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3921 states, 3013 states have (on average 1.5552605376700963) internal successors, (4686), 3082 states have internal predecessors, (4686), 634 states have call successors, (634), 229 states have call predecessors, (634), 273 states have return successors, (934), 669 states have call predecessors, (934), 626 states have call successors, (934) [2023-04-02 02:57:51,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3921 states to 3921 states and 6254 transitions. [2023-04-02 02:57:51,255 INFO L78 Accepts]: Start accepts. Automaton has 3921 states and 6254 transitions. Word has length 216 [2023-04-02 02:57:51,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:57:51,255 INFO L495 AbstractCegarLoop]: Abstraction has 3921 states and 6254 transitions. [2023-04-02 02:57:51,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-02 02:57:51,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3921 states and 6254 transitions. [2023-04-02 02:57:51,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-02 02:57:51,258 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:57:51,258 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:57:51,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-04-02 02:57:51,466 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-04-02 02:57:51,467 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:57:51,467 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:57:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash 753550387, now seen corresponding path program 1 times [2023-04-02 02:57:51,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:57:51,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167095929] [2023-04-02 02:57:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:57:51,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:57:51,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:51,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:51,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:57:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:57:51,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:51,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:57:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:57:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:57:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:57:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:52,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:57:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:57:52,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:57:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:57:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:57:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:57:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:57:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:57:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:57:52,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:57:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:57:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:57:52,385 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:57:52,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:57:52,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167095929] [2023-04-02 02:57:52,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167095929] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:57:52,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:57:52,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:57:52,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860667058] [2023-04-02 02:57:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:57:52,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:57:52,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:57:52,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:57:52,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:57:52,387 INFO L87 Difference]: Start difference. First operand 3921 states and 6254 transitions. Second operand has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:58:03,422 INFO L93 Difference]: Finished difference Result 9031 states and 15059 transitions. [2023-04-02 02:58:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 02:58:03,423 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 221 [2023-04-02 02:58:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:58:03,439 INFO L225 Difference]: With dead ends: 9031 [2023-04-02 02:58:03,440 INFO L226 Difference]: Without dead ends: 5183 [2023-04-02 02:58:03,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=215, Invalid=1045, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 02:58:03,449 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 1185 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 11037 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 11478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 11037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:58:03,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 1251 Invalid, 11478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [441 Valid, 11037 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 02:58:03,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5183 states. [2023-04-02 02:58:04,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5183 to 3928. [2023-04-02 02:58:04,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3928 states, 3017 states have (on average 1.5555187272124626) internal successors, (4693), 3089 states have internal predecessors, (4693), 636 states have call successors, (636), 229 states have call predecessors, (636), 274 states have return successors, (938), 669 states have call predecessors, (938), 628 states have call successors, (938) [2023-04-02 02:58:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3928 states to 3928 states and 6267 transitions. [2023-04-02 02:58:04,466 INFO L78 Accepts]: Start accepts. Automaton has 3928 states and 6267 transitions. Word has length 221 [2023-04-02 02:58:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:58:04,466 INFO L495 AbstractCegarLoop]: Abstraction has 3928 states and 6267 transitions. [2023-04-02 02:58:04,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 5 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3928 states and 6267 transitions. [2023-04-02 02:58:04,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-02 02:58:04,469 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:58:04,469 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:58:04,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-04-02 02:58:04,469 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:58:04,469 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:58:04,470 INFO L85 PathProgramCache]: Analyzing trace with hash -690181123, now seen corresponding path program 1 times [2023-04-02 02:58:04,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:58:04,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780768103] [2023-04-02 02:58:04,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:58:04,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:58:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:58:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:58:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:58:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:58:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:58:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:58:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:58:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:05,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:58:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:58:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:58:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:58:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:05,276 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:58:05,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:58:05,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780768103] [2023-04-02 02:58:05,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780768103] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:58:05,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:58:05,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:58:05,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092169686] [2023-04-02 02:58:05,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:58:05,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:58:05,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:58:05,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:58:05,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:58:05,277 INFO L87 Difference]: Start difference. First operand 3928 states and 6267 transitions. Second operand has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:15,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:58:15,530 INFO L93 Difference]: Finished difference Result 9051 states and 15131 transitions. [2023-04-02 02:58:15,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 02:58:15,531 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 221 [2023-04-02 02:58:15,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:58:15,547 INFO L225 Difference]: With dead ends: 9051 [2023-04-02 02:58:15,547 INFO L226 Difference]: Without dead ends: 5197 [2023-04-02 02:58:15,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=243, Invalid=1163, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 02:58:15,556 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 2327 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 10606 mSolverCounterSat, 887 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 11493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 10606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:58:15,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 1187 Invalid, 11493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [887 Valid, 10606 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 02:58:15,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5197 states. [2023-04-02 02:58:16,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5197 to 3932. [2023-04-02 02:58:16,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3932 states, 3020 states have (on average 1.5549668874172184) internal successors, (4696), 3092 states have internal predecessors, (4696), 636 states have call successors, (636), 229 states have call predecessors, (636), 275 states have return successors, (939), 670 states have call predecessors, (939), 628 states have call successors, (939) [2023-04-02 02:58:16,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3932 states to 3932 states and 6271 transitions. [2023-04-02 02:58:16,585 INFO L78 Accepts]: Start accepts. Automaton has 3932 states and 6271 transitions. Word has length 221 [2023-04-02 02:58:16,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:58:16,585 INFO L495 AbstractCegarLoop]: Abstraction has 3932 states and 6271 transitions. [2023-04-02 02:58:16,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 10.0) internal successors, (140), 9 states have internal predecessors, (140), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:16,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3932 states and 6271 transitions. [2023-04-02 02:58:16,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-02 02:58:16,588 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:58:16,588 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:58:16,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-04-02 02:58:16,588 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:58:16,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:58:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1730712506, now seen corresponding path program 1 times [2023-04-02 02:58:16,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:58:16,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698745860] [2023-04-02 02:58:16,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:58:16,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:58:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:58:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:58:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:16,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:58:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:58:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:58:17,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:58:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:58:17,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:58:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:17,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:58:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:58:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:58:17,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:17,291 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:58:17,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:58:17,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698745860] [2023-04-02 02:58:17,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698745860] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:58:17,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:58:17,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:58:17,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646427291] [2023-04-02 02:58:17,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:58:17,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:58:17,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:58:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:58:17,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:58:17,293 INFO L87 Difference]: Start difference. First operand 3932 states and 6271 transitions. Second operand has 13 states, 12 states have (on average 11.666666666666666) internal successors, (140), 7 states have internal predecessors, (140), 5 states have call successors, (38), 8 states have call predecessors, (38), 3 states have return successors, (34), 3 states have call predecessors, (34), 5 states have call successors, (34) [2023-04-02 02:58:26,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:58:26,383 INFO L93 Difference]: Finished difference Result 9058 states and 15141 transitions. [2023-04-02 02:58:26,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 02:58:26,383 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 11.666666666666666) internal successors, (140), 7 states have internal predecessors, (140), 5 states have call successors, (38), 8 states have call predecessors, (38), 3 states have return successors, (34), 3 states have call predecessors, (34), 5 states have call successors, (34) Word has length 222 [2023-04-02 02:58:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:58:26,403 INFO L225 Difference]: With dead ends: 9058 [2023-04-02 02:58:26,404 INFO L226 Difference]: Without dead ends: 5200 [2023-04-02 02:58:26,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2023-04-02 02:58:26,414 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 2423 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 7245 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 8158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 7245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:58:26,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 889 Invalid, 8158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [913 Valid, 7245 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-02 02:58:26,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5200 states. [2023-04-02 02:58:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5200 to 3933. [2023-04-02 02:58:27,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3933 states, 3021 states have (on average 1.5547831843760345) internal successors, (4697), 3093 states have internal predecessors, (4697), 636 states have call successors, (636), 229 states have call predecessors, (636), 275 states have return successors, (939), 670 states have call predecessors, (939), 628 states have call successors, (939) [2023-04-02 02:58:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3933 states to 3933 states and 6272 transitions. [2023-04-02 02:58:27,496 INFO L78 Accepts]: Start accepts. Automaton has 3933 states and 6272 transitions. Word has length 222 [2023-04-02 02:58:27,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:58:27,497 INFO L495 AbstractCegarLoop]: Abstraction has 3933 states and 6272 transitions. [2023-04-02 02:58:27,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 11.666666666666666) internal successors, (140), 7 states have internal predecessors, (140), 5 states have call successors, (38), 8 states have call predecessors, (38), 3 states have return successors, (34), 3 states have call predecessors, (34), 5 states have call successors, (34) [2023-04-02 02:58:27,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3933 states and 6272 transitions. [2023-04-02 02:58:27,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-02 02:58:27,500 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:58:27,500 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:58:27,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-04-02 02:58:27,500 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:58:27,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:58:27,500 INFO L85 PathProgramCache]: Analyzing trace with hash -241658155, now seen corresponding path program 1 times [2023-04-02 02:58:27,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:58:27,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987184119] [2023-04-02 02:58:27,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:58:27,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:58:27,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:58:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:58:27,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:58:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:58:28,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:28,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:58:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:28,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:58:28,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:58:28,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:28,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:58:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:58:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:58:28,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:58:28,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:28,247 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:58:28,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:58:28,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987184119] [2023-04-02 02:58:28,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987184119] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:58:28,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:58:28,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:58:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699471596] [2023-04-02 02:58:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:58:28,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:58:28,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:58:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:58:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:58:28,248 INFO L87 Difference]: Start difference. First operand 3933 states and 6272 transitions. Second operand has 16 states, 13 states have (on average 10.846153846153847) internal successors, (141), 9 states have internal predecessors, (141), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:38,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:58:38,980 INFO L93 Difference]: Finished difference Result 9055 states and 15121 transitions. [2023-04-02 02:58:38,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 02:58:38,981 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 10.846153846153847) internal successors, (141), 9 states have internal predecessors, (141), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) Word has length 222 [2023-04-02 02:58:38,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:58:39,001 INFO L225 Difference]: With dead ends: 9055 [2023-04-02 02:58:39,002 INFO L226 Difference]: Without dead ends: 5196 [2023-04-02 02:58:39,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=243, Invalid=1163, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 02:58:39,012 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1765 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 10823 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1833 SdHoareTripleChecker+Valid, 1262 SdHoareTripleChecker+Invalid, 11500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 10823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:58:39,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1833 Valid, 1262 Invalid, 11500 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [677 Valid, 10823 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 02:58:39,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5196 states. [2023-04-02 02:58:40,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5196 to 3937. [2023-04-02 02:58:40,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3937 states, 3024 states have (on average 1.5542328042328042) internal successors, (4700), 3096 states have internal predecessors, (4700), 636 states have call successors, (636), 229 states have call predecessors, (636), 276 states have return successors, (940), 671 states have call predecessors, (940), 628 states have call successors, (940) [2023-04-02 02:58:40,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3937 states to 3937 states and 6276 transitions. [2023-04-02 02:58:40,105 INFO L78 Accepts]: Start accepts. Automaton has 3937 states and 6276 transitions. Word has length 222 [2023-04-02 02:58:40,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:58:40,106 INFO L495 AbstractCegarLoop]: Abstraction has 3937 states and 6276 transitions. [2023-04-02 02:58:40,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 10.846153846153847) internal successors, (141), 9 states have internal predecessors, (141), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34) [2023-04-02 02:58:40,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3937 states and 6276 transitions. [2023-04-02 02:58:40,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-02 02:58:40,108 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:58:40,108 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:58:40,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-04-02 02:58:40,109 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:58:40,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:58:40,109 INFO L85 PathProgramCache]: Analyzing trace with hash -786530729, now seen corresponding path program 1 times [2023-04-02 02:58:40,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:58:40,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668548273] [2023-04-02 02:58:40,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:58:40,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:58:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:58:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:58:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:58:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:58:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:58:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:58:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:58:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:58:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:58:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:58:40,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:58:40,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:58:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:58:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:58:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:58:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:58:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:58:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:58:40,849 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:58:40,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:58:40,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668548273] [2023-04-02 02:58:40,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668548273] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:58:40,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:58:40,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 02:58:40,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530846150] [2023-04-02 02:58:40,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:58:40,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 02:58:40,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:58:40,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 02:58:40,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:58:40,850 INFO L87 Difference]: Start difference. First operand 3937 states and 6276 transitions. Second operand has 16 states, 14 states have (on average 10.071428571428571) internal successors, (141), 9 states have internal predecessors, (141), 6 states have call successors, (38), 8 states have call predecessors, (38), 4 states have return successors, (34), 4 states have call predecessors, (34), 6 states have call successors, (34)