/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_spec14_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:51:12,623 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:51:12,624 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:51:12,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:51:12,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:51:12,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:51:12,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:51:12,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:51:12,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:51:12,659 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:51:12,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:51:12,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:51:12,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:51:12,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:51:12,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:51:12,663 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:51:12,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:51:12,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:51:12,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:51:12,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:51:12,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:51:12,672 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:51:12,672 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:51:12,673 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:51:12,675 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:51:12,675 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:51:12,675 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:51:12,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:51:12,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:51:12,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:51:12,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:51:12,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:51:12,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:51:12,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:51:12,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:51:12,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:51:12,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:51:12,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:51:12,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:51:12,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:51:12,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:51:12,686 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 02:51:12,700 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:51:12,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:51:12,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:51:12,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:51:12,701 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:51:12,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:51:12,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:51:12,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:51:12,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:51:12,703 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:51:12,703 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:12,704 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:51:12,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:51:12,705 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:51:12,705 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:51:12,705 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:51:12,705 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:51:12,705 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:51:12,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:51:12,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:51:12,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:51:12,868 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:51:12,868 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:51:12,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2023-04-02 02:51:13,828 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:51:14,127 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:51:14,127 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2023-04-02 02:51:14,157 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9aaac35/d3b8eb1e728143fca3c7951ec77b4da8/FLAGea6927b9a [2023-04-02 02:51:14,168 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e9aaac35/d3b8eb1e728143fca3c7951ec77b4da8 [2023-04-02 02:51:14,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:51:14,172 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:51:14,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:14,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:51:14,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:51:14,176 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,177 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e402023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14, skipping insertion in model container [2023-04-02 02:51:14,177 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:51:14,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:51:14,569 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_spec14_product24.cil.c[71679,71692] [2023-04-02 02:51:14,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:14,596 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:51:14,688 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_spec14_product24.cil.c[71679,71692] [2023-04-02 02:51:14,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:14,719 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:51:14,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14 WrapperNode [2023-04-02 02:51:14,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:14,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:51:14,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:51:14,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:51:14,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,756 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,757 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,818 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:51:14,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:51:14,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:51:14,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:51:14,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (1/1) ... [2023-04-02 02:51:14,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:14,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:14,861 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 02:51:14,874 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 02:51:14,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:51:14,898 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:51:14,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:51:14,900 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:51:14,901 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:51:14,902 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:51:14,903 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:51:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:51:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:51:14,904 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:51:14,904 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:51:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:51:14,906 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:51:14,907 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2023-04-02 02:51:14,908 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:51:14,909 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:51:14,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:51:15,134 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:51:15,139 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:51:16,266 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:51:16,283 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:51:16,283 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:51:16,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:16 BoogieIcfgContainer [2023-04-02 02:51:16,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:51:16,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:51:16,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:51:16,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:51:16,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:51:14" (1/3) ... [2023-04-02 02:51:16,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:16, skipping insertion in model container [2023-04-02 02:51:16,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:14" (2/3) ... [2023-04-02 02:51:16,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3523e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:16, skipping insertion in model container [2023-04-02 02:51:16,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:16" (3/3) ... [2023-04-02 02:51:16,294 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2023-04-02 02:51:16,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:51:16,307 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:51:16,361 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:51:16,368 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;@59222eac, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:51:16,368 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:51:16,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 782 states, 537 states have (on average 1.6070763500931098) internal successors, (863), 562 states have internal predecessors, (863), 179 states have call successors, (179), 54 states have call predecessors, (179), 54 states have return successors, (179), 173 states have call predecessors, (179), 179 states have call successors, (179) [2023-04-02 02:51:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-04-02 02:51:16,385 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:16,386 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:16,386 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:16,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:16,390 INFO L85 PathProgramCache]: Analyzing trace with hash -465006342, now seen corresponding path program 1 times [2023-04-02 02:51:16,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:16,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48221301] [2023-04-02 02:51:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:16,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:17,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:17,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:17,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:51:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:51:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:51:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:51:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:51:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:17,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:17,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48221301] [2023-04-02 02:51:17,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48221301] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:17,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:17,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:17,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404365699] [2023-04-02 02:51:17,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:17,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:17,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:17,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:17,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:17,271 INFO L87 Difference]: Start difference. First operand has 782 states, 537 states have (on average 1.6070763500931098) internal successors, (863), 562 states have internal predecessors, (863), 179 states have call successors, (179), 54 states have call predecessors, (179), 54 states have return successors, (179), 173 states have call predecessors, (179), 179 states have call successors, (179) Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:23,299 INFO L93 Difference]: Finished difference Result 1504 states and 2505 transitions. [2023-04-02 02:51:23,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 02:51:23,309 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 87 [2023-04-02 02:51:23,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:23,336 INFO L225 Difference]: With dead ends: 1504 [2023-04-02 02:51:23,338 INFO L226 Difference]: Without dead ends: 862 [2023-04-02 02:51:23,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:51:23,354 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 967 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 3657 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 3905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 3657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:23,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 621 Invalid, 3905 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [248 Valid, 3657 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 02:51:23,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-04-02 02:51:23,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 627. [2023-04-02 02:51:23,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 454 states have (on average 1.6233480176211454) internal successors, (737), 471 states have internal predecessors, (737), 126 states have call successors, (126), 51 states have call predecessors, (126), 46 states have return successors, (121), 117 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 02:51:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 984 transitions. [2023-04-02 02:51:23,550 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 984 transitions. Word has length 87 [2023-04-02 02:51:23,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:23,551 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 984 transitions. [2023-04-02 02:51:23,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:23,552 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 984 transitions. [2023-04-02 02:51:23,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 02:51:23,555 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:23,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:23,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 02:51:23,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:23,556 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:23,556 INFO L85 PathProgramCache]: Analyzing trace with hash -142257347, now seen corresponding path program 1 times [2023-04-02 02:51:23,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:23,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695056280] [2023-04-02 02:51:23,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:23,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:23,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:51:23,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:51:23,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:51:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:51:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:51:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:23,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:23,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695056280] [2023-04-02 02:51:23,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695056280] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:23,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:23,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:23,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891672605] [2023-04-02 02:51:23,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:23,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:23,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:23,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:23,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:23,943 INFO L87 Difference]: Start difference. First operand 627 states and 984 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:29,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:29,245 INFO L93 Difference]: Finished difference Result 1456 states and 2397 transitions. [2023-04-02 02:51:29,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:51:29,246 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 88 [2023-04-02 02:51:29,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:29,251 INFO L225 Difference]: With dead ends: 1456 [2023-04-02 02:51:29,251 INFO L226 Difference]: Without dead ends: 862 [2023-04-02 02:51:29,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:51:29,256 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 940 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 3595 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 3826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 3595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:29,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 571 Invalid, 3826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 3595 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 02:51:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-04-02 02:51:29,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 627. [2023-04-02 02:51:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 454 states have (on average 1.6211453744493391) internal successors, (736), 471 states have internal predecessors, (736), 126 states have call successors, (126), 51 states have call predecessors, (126), 46 states have return successors, (121), 117 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 02:51:29,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 983 transitions. [2023-04-02 02:51:29,368 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 983 transitions. Word has length 88 [2023-04-02 02:51:29,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:29,368 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 983 transitions. [2023-04-02 02:51:29,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:29,368 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 983 transitions. [2023-04-02 02:51:29,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 02:51:29,371 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:29,371 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:29,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 02:51:29,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:29,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:29,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1676674774, now seen corresponding path program 1 times [2023-04-02 02:51:29,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:29,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344905970] [2023-04-02 02:51:29,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:29,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:29,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:29,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:29,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:51:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:51:29,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 02:51:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:51:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:51:29,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:29,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:29,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:29,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344905970] [2023-04-02 02:51:29,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344905970] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:29,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:29,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:29,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443117510] [2023-04-02 02:51:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:29,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:29,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:29,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:29,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:29,873 INFO L87 Difference]: Start difference. First operand 627 states and 983 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:35,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:35,057 INFO L93 Difference]: Finished difference Result 1456 states and 2396 transitions. [2023-04-02 02:51:35,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:51:35,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 89 [2023-04-02 02:51:35,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:35,062 INFO L225 Difference]: With dead ends: 1456 [2023-04-02 02:51:35,062 INFO L226 Difference]: Without dead ends: 862 [2023-04-02 02:51:35,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:51:35,065 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 939 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 3545 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 3790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 3545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:35,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 518 Invalid, 3790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 3545 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 02:51:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-04-02 02:51:35,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 627. [2023-04-02 02:51:35,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 454 states have (on average 1.618942731277533) internal successors, (735), 471 states have internal predecessors, (735), 126 states have call successors, (126), 51 states have call predecessors, (126), 46 states have return successors, (121), 117 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 02:51:35,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 982 transitions. [2023-04-02 02:51:35,158 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 982 transitions. Word has length 89 [2023-04-02 02:51:35,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:35,158 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 982 transitions. [2023-04-02 02:51:35,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:35,158 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 982 transitions. [2023-04-02 02:51:35,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 02:51:35,159 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:35,160 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:35,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 02:51:35,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:35,160 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1662323751, now seen corresponding path program 1 times [2023-04-02 02:51:35,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:35,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262288330] [2023-04-02 02:51:35,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:35,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:51:35,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:51:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:51:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 02:51:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:51:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:51:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:35,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:35,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:35,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262288330] [2023-04-02 02:51:35,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262288330] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:35,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:35,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:35,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416344121] [2023-04-02 02:51:35,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:35,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:35,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:35,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:35,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:35,549 INFO L87 Difference]: Start difference. First operand 627 states and 982 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:40,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:40,204 INFO L93 Difference]: Finished difference Result 1456 states and 2395 transitions. [2023-04-02 02:51:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:51:40,206 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 90 [2023-04-02 02:51:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:40,223 INFO L225 Difference]: With dead ends: 1456 [2023-04-02 02:51:40,223 INFO L226 Difference]: Without dead ends: 862 [2023-04-02 02:51:40,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:51:40,235 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 2065 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 3358 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2203 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 4038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 3358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:40,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2203 Valid, 564 Invalid, 4038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 3358 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 02:51:40,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-04-02 02:51:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 627. [2023-04-02 02:51:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 454 states have (on average 1.6167400881057268) internal successors, (734), 471 states have internal predecessors, (734), 126 states have call successors, (126), 51 states have call predecessors, (126), 46 states have return successors, (121), 117 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 02:51:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 981 transitions. [2023-04-02 02:51:40,360 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 981 transitions. Word has length 90 [2023-04-02 02:51:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:40,360 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 981 transitions. [2023-04-02 02:51:40,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 981 transitions. [2023-04-02 02:51:40,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 02:51:40,362 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:40,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:40,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 02:51:40,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:40,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:40,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1688415054, now seen corresponding path program 1 times [2023-04-02 02:51:40,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:40,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660893663] [2023-04-02 02:51:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:40,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:40,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 02:51:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:51:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 02:51:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:51:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:51:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:51:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:40,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:40,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660893663] [2023-04-02 02:51:40,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660893663] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:40,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:40,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:40,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021498843] [2023-04-02 02:51:40,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:40,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:40,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:40,691 INFO L87 Difference]: Start difference. First operand 627 states and 981 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:45,446 INFO L93 Difference]: Finished difference Result 1456 states and 2394 transitions. [2023-04-02 02:51:45,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:51:45,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 91 [2023-04-02 02:51:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:45,458 INFO L225 Difference]: With dead ends: 1456 [2023-04-02 02:51:45,458 INFO L226 Difference]: Without dead ends: 862 [2023-04-02 02:51:45,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:51:45,460 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1403 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 3847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:45,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 568 Invalid, 3847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 02:51:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 862 states. [2023-04-02 02:51:45,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 862 to 627. [2023-04-02 02:51:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 454 states have (on average 1.6145374449339207) internal successors, (733), 471 states have internal predecessors, (733), 126 states have call successors, (126), 51 states have call predecessors, (126), 46 states have return successors, (121), 117 states have call predecessors, (121), 121 states have call successors, (121) [2023-04-02 02:51:45,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 980 transitions. [2023-04-02 02:51:45,573 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 980 transitions. Word has length 91 [2023-04-02 02:51:45,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:45,573 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 980 transitions. [2023-04-02 02:51:45,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:51:45,574 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 980 transitions. [2023-04-02 02:51:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 02:51:45,576 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:45,576 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:45,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 02:51:45,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:45,576 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:45,576 INFO L85 PathProgramCache]: Analyzing trace with hash -2093597579, now seen corresponding path program 1 times [2023-04-02 02:51:45,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:45,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091570398] [2023-04-02 02:51:45,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:45,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:45,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:45,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:46,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:46,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 02:51:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:51:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:51:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:46,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:46,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091570398] [2023-04-02 02:51:46,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091570398] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:46,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:46,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:51:46,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24219587] [2023-04-02 02:51:46,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:46,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:51:46,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:46,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:51:46,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:51:46,102 INFO L87 Difference]: Start difference. First operand 627 states and 980 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:51:53,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:53,852 INFO L93 Difference]: Finished difference Result 1470 states and 2419 transitions. [2023-04-02 02:51:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:51:53,852 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 92 [2023-04-02 02:51:53,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:53,857 INFO L225 Difference]: With dead ends: 1470 [2023-04-02 02:51:53,857 INFO L226 Difference]: Without dead ends: 880 [2023-04-02 02:51:53,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:51:53,859 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 916 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 9690 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 1488 SdHoareTripleChecker+Invalid, 9897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 9690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:53,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 1488 Invalid, 9897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 9690 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-04-02 02:51:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2023-04-02 02:51:53,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 634. [2023-04-02 02:51:53,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 457 states have (on average 1.6105032822757113) internal successors, (736), 476 states have internal predecessors, (736), 128 states have call successors, (128), 51 states have call predecessors, (128), 48 states have return successors, (126), 119 states have call predecessors, (126), 123 states have call successors, (126) [2023-04-02 02:51:53,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 990 transitions. [2023-04-02 02:51:53,961 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 990 transitions. Word has length 92 [2023-04-02 02:51:53,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:53,963 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 990 transitions. [2023-04-02 02:51:53,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 8 states have internal predecessors, (53), 4 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:51:53,963 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 990 transitions. [2023-04-02 02:51:53,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 02:51:53,965 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:53,965 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:53,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 02:51:53,965 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:53,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:53,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1992685612, now seen corresponding path program 1 times [2023-04-02 02:51:53,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:53,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507320690] [2023-04-02 02:51:53,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:53,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 02:51:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:51:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:51:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:51:54,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:54,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507320690] [2023-04-02 02:51:54,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507320690] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:54,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:54,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:51:54,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111979270] [2023-04-02 02:51:54,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:54,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:54,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:54,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:54,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:51:54,336 INFO L87 Difference]: Start difference. First operand 634 states and 990 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:51:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:59,484 INFO L93 Difference]: Finished difference Result 1491 states and 2459 transitions. [2023-04-02 02:51:59,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 02:51:59,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 92 [2023-04-02 02:51:59,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:59,489 INFO L225 Difference]: With dead ends: 1491 [2023-04-02 02:51:59,489 INFO L226 Difference]: Without dead ends: 898 [2023-04-02 02:51:59,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:51:59,491 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1009 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:59,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 542 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [249 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 02:51:59,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-04-02 02:51:59,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 648. [2023-04-02 02:51:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 469 states have (on average 1.605543710021322) internal successors, (753), 488 states have internal predecessors, (753), 129 states have call successors, (129), 52 states have call predecessors, (129), 49 states have return successors, (126), 120 states have call predecessors, (126), 124 states have call successors, (126) [2023-04-02 02:51:59,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1008 transitions. [2023-04-02 02:51:59,591 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1008 transitions. Word has length 92 [2023-04-02 02:51:59,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:59,591 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1008 transitions. [2023-04-02 02:51:59,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:51:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1008 transitions. [2023-04-02 02:51:59,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 02:51:59,592 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:59,592 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:59,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 02:51:59,593 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:59,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:59,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1109435352, now seen corresponding path program 1 times [2023-04-02 02:51:59,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:59,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421193100] [2023-04-02 02:51:59,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:59,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:59,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:59,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:51:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:51:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 02:51:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:51:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:51:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:59,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:51:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:00,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:00,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421193100] [2023-04-02 02:52:00,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421193100] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:00,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:00,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:52:00,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646673857] [2023-04-02 02:52:00,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:00,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:52:00,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:00,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:52:00,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:52:00,002 INFO L87 Difference]: Start difference. First operand 648 states and 1008 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:04,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:04,710 INFO L93 Difference]: Finished difference Result 1468 states and 2393 transitions. [2023-04-02 02:52:04,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:04,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2023-04-02 02:52:04,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:04,717 INFO L225 Difference]: With dead ends: 1468 [2023-04-02 02:52:04,717 INFO L226 Difference]: Without dead ends: 893 [2023-04-02 02:52:04,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:04,720 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1466 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 435 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 3788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 435 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:04,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1604 Valid, 555 Invalid, 3788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [435 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 02:52:04,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-04-02 02:52:04,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 648. [2023-04-02 02:52:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 469 states have (on average 1.5948827292110874) internal successors, (748), 488 states have internal predecessors, (748), 129 states have call successors, (129), 52 states have call predecessors, (129), 49 states have return successors, (126), 120 states have call predecessors, (126), 124 states have call successors, (126) [2023-04-02 02:52:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 1003 transitions. [2023-04-02 02:52:04,874 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 1003 transitions. Word has length 93 [2023-04-02 02:52:04,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:04,874 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 1003 transitions. [2023-04-02 02:52:04,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:04,874 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 1003 transitions. [2023-04-02 02:52:04,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 02:52:04,875 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:04,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:04,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 02:52:04,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:04,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:04,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1748172761, now seen corresponding path program 1 times [2023-04-02 02:52:04,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:04,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751525012] [2023-04-02 02:52:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:04,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:04,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:05,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:05,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:52:05,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:52:05,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:52:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:52:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:52:05,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:05,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:05,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751525012] [2023-04-02 02:52:05,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751525012] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:05,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:05,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:52:05,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803689460] [2023-04-02 02:52:05,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:05,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:52:05,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:05,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:52:05,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:52:05,250 INFO L87 Difference]: Start difference. First operand 648 states and 1003 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:09,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:09,853 INFO L93 Difference]: Finished difference Result 1468 states and 2388 transitions. [2023-04-02 02:52:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:09,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 94 [2023-04-02 02:52:09,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:09,857 INFO L225 Difference]: With dead ends: 1468 [2023-04-02 02:52:09,857 INFO L226 Difference]: Without dead ends: 893 [2023-04-02 02:52:09,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:09,859 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1539 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 3868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:09,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 562 Invalid, 3868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [460 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 02:52:09,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-04-02 02:52:09,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 648. [2023-04-02 02:52:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 469 states have (on average 1.584221748400853) internal successors, (743), 488 states have internal predecessors, (743), 129 states have call successors, (129), 52 states have call predecessors, (129), 49 states have return successors, (126), 120 states have call predecessors, (126), 124 states have call successors, (126) [2023-04-02 02:52:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 998 transitions. [2023-04-02 02:52:09,961 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 998 transitions. Word has length 94 [2023-04-02 02:52:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:09,962 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 998 transitions. [2023-04-02 02:52:09,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 998 transitions. [2023-04-02 02:52:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 02:52:09,963 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:09,963 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:09,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 02:52:09,964 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:09,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:09,965 INFO L85 PathProgramCache]: Analyzing trace with hash -963536003, now seen corresponding path program 1 times [2023-04-02 02:52:09,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:09,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733479172] [2023-04-02 02:52:09,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:09,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:09,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:10,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:10,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:10,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:52:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:52:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:10,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:52:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:10,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:10,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733479172] [2023-04-02 02:52:10,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733479172] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:10,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:10,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:52:10,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716814963] [2023-04-02 02:52:10,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:10,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:52:10,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:10,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:52:10,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:52:10,289 INFO L87 Difference]: Start difference. First operand 648 states and 998 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:15,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:15,135 INFO L93 Difference]: Finished difference Result 1468 states and 2383 transitions. [2023-04-02 02:52:15,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:15,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 95 [2023-04-02 02:52:15,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:15,142 INFO L225 Difference]: With dead ends: 1468 [2023-04-02 02:52:15,142 INFO L226 Difference]: Without dead ends: 893 [2023-04-02 02:52:15,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:15,145 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 971 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 3456 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 3456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:15,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 527 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 3456 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 02:52:15,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-04-02 02:52:15,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 648. [2023-04-02 02:52:15,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 469 states have (on average 1.5735607675906182) internal successors, (738), 488 states have internal predecessors, (738), 129 states have call successors, (129), 52 states have call predecessors, (129), 49 states have return successors, (126), 120 states have call predecessors, (126), 124 states have call successors, (126) [2023-04-02 02:52:15,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 993 transitions. [2023-04-02 02:52:15,306 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 993 transitions. Word has length 95 [2023-04-02 02:52:15,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:15,306 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 993 transitions. [2023-04-02 02:52:15,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:15,306 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 993 transitions. [2023-04-02 02:52:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 02:52:15,307 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:15,308 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:15,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 02:52:15,308 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:15,308 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:15,308 INFO L85 PathProgramCache]: Analyzing trace with hash -746344226, now seen corresponding path program 1 times [2023-04-02 02:52:15,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762003017] [2023-04-02 02:52:15,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:15,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:52:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:52:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:52:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:15,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:15,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:15,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762003017] [2023-04-02 02:52:15,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762003017] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:15,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:15,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:52:15,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082648705] [2023-04-02 02:52:15,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:15,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:52:15,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:15,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:52:15,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:52:15,689 INFO L87 Difference]: Start difference. First operand 648 states and 993 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:52:20,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:20,475 INFO L93 Difference]: Finished difference Result 1500 states and 2420 transitions. [2023-04-02 02:52:20,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 02:52:20,475 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2023-04-02 02:52:20,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:20,479 INFO L225 Difference]: With dead ends: 1500 [2023-04-02 02:52:20,479 INFO L226 Difference]: Without dead ends: 875 [2023-04-02 02:52:20,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:52:20,481 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1391 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 3367 mSolverCounterSat, 424 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 3791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 3367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:20,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 563 Invalid, 3791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [424 Valid, 3367 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-02 02:52:20,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2023-04-02 02:52:20,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 635. [2023-04-02 02:52:20,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 460 states have (on average 1.5739130434782609) internal successors, (724), 477 states have internal predecessors, (724), 127 states have call successors, (127), 52 states have call predecessors, (127), 47 states have return successors, (122), 118 states have call predecessors, (122), 122 states have call successors, (122) [2023-04-02 02:52:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 973 transitions. [2023-04-02 02:52:20,579 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 973 transitions. Word has length 95 [2023-04-02 02:52:20,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:20,579 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 973 transitions. [2023-04-02 02:52:20,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-02 02:52:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 973 transitions. [2023-04-02 02:52:20,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 02:52:20,580 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:20,580 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:20,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 02:52:20,581 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:20,581 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:20,581 INFO L85 PathProgramCache]: Analyzing trace with hash -537645923, now seen corresponding path program 1 times [2023-04-02 02:52:20,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:20,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815910247] [2023-04-02 02:52:20,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:20,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:20,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 02:52:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:52:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:52:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:20,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:20,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815910247] [2023-04-02 02:52:20,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815910247] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:20,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:20,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:20,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450908526] [2023-04-02 02:52:20,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:20,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:20,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:20,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:20,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:20,968 INFO L87 Difference]: Start difference. First operand 635 states and 973 transitions. Second operand has 11 states, 10 states have (on average 5.6) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:26,640 INFO L93 Difference]: Finished difference Result 1449 states and 2351 transitions. [2023-04-02 02:52:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:26,641 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 95 [2023-04-02 02:52:26,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:26,644 INFO L225 Difference]: With dead ends: 1449 [2023-04-02 02:52:26,644 INFO L226 Difference]: Without dead ends: 882 [2023-04-02 02:52:26,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:52:26,646 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1422 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 7167 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 7603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 7167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:26,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 1095 Invalid, 7603 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [436 Valid, 7167 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 02:52:26,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-04-02 02:52:26,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 638. [2023-04-02 02:52:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 461 states have (on average 1.5726681127982647) internal successors, (725), 480 states have internal predecessors, (725), 128 states have call successors, (128), 52 states have call predecessors, (128), 48 states have return successors, (124), 118 states have call predecessors, (124), 123 states have call successors, (124) [2023-04-02 02:52:26,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 977 transitions. [2023-04-02 02:52:26,748 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 977 transitions. Word has length 95 [2023-04-02 02:52:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:26,749 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 977 transitions. [2023-04-02 02:52:26,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.6) internal successors, (56), 7 states have internal predecessors, (56), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 977 transitions. [2023-04-02 02:52:26,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 02:52:26,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:26,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:26,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 02:52:26,750 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:26,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:26,750 INFO L85 PathProgramCache]: Analyzing trace with hash 744022060, now seen corresponding path program 1 times [2023-04-02 02:52:26,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:26,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495744093] [2023-04-02 02:52:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:26,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:26,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:27,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:52:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:52:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:52:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:52:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:52:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:27,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:27,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495744093] [2023-04-02 02:52:27,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495744093] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:27,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:27,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:27,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484398485] [2023-04-02 02:52:27,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:27,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:27,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:27,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:27,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:27,166 INFO L87 Difference]: Start difference. First operand 638 states and 977 transitions. Second operand has 11 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:32,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:32,974 INFO L93 Difference]: Finished difference Result 1463 states and 2375 transitions. [2023-04-02 02:52:32,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:32,974 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 96 [2023-04-02 02:52:32,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:32,980 INFO L225 Difference]: With dead ends: 1463 [2023-04-02 02:52:32,981 INFO L226 Difference]: Without dead ends: 893 [2023-04-02 02:52:32,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:52:32,985 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 1409 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 7218 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1547 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 7650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 7218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:32,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1547 Valid, 1134 Invalid, 7650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [432 Valid, 7218 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 02:52:32,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-04-02 02:52:33,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 642. [2023-04-02 02:52:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 462 states have (on average 1.5714285714285714) internal successors, (726), 484 states have internal predecessors, (726), 130 states have call successors, (130), 52 states have call predecessors, (130), 49 states have return successors, (128), 118 states have call predecessors, (128), 125 states have call successors, (128) [2023-04-02 02:52:33,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 984 transitions. [2023-04-02 02:52:33,112 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 984 transitions. Word has length 96 [2023-04-02 02:52:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:33,113 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 984 transitions. [2023-04-02 02:52:33,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.7) internal successors, (57), 7 states have internal predecessors, (57), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 984 transitions. [2023-04-02 02:52:33,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 02:52:33,114 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:33,114 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:33,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 02:52:33,114 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:33,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:33,114 INFO L85 PathProgramCache]: Analyzing trace with hash 618323224, now seen corresponding path program 1 times [2023-04-02 02:52:33,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:33,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116032900] [2023-04-02 02:52:33,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:33,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:52:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:52:33,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:52:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:52:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:33,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:33,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116032900] [2023-04-02 02:52:33,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116032900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:33,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:33,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:33,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880142153] [2023-04-02 02:52:33,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:33,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:33,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:33,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:33,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:33,499 INFO L87 Difference]: Start difference. First operand 642 states and 984 transitions. Second operand has 11 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:40,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:40,083 INFO L93 Difference]: Finished difference Result 1471 states and 2395 transitions. [2023-04-02 02:52:40,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:40,084 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 97 [2023-04-02 02:52:40,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:40,088 INFO L225 Difference]: With dead ends: 1471 [2023-04-02 02:52:40,088 INFO L226 Difference]: Without dead ends: 898 [2023-04-02 02:52:40,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:52:40,090 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 848 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 7426 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 7630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 7426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:40,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 1157 Invalid, 7630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 7426 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 02:52:40,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2023-04-02 02:52:40,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 646. [2023-04-02 02:52:40,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 463 states have (on average 1.570194384449244) internal successors, (727), 488 states have internal predecessors, (727), 132 states have call successors, (132), 52 states have call predecessors, (132), 50 states have return successors, (132), 118 states have call predecessors, (132), 127 states have call successors, (132) [2023-04-02 02:52:40,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 991 transitions. [2023-04-02 02:52:40,200 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 991 transitions. Word has length 97 [2023-04-02 02:52:40,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:40,200 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 991 transitions. [2023-04-02 02:52:40,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:40,200 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 991 transitions. [2023-04-02 02:52:40,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 02:52:40,201 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:40,201 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:40,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 02:52:40,201 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:40,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:40,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1643990471, now seen corresponding path program 1 times [2023-04-02 02:52:40,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:40,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142272125] [2023-04-02 02:52:40,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:40,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:40,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:40,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:52:40,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 02:52:40,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:52:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:52:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:52:40,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:40,554 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:40,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142272125] [2023-04-02 02:52:40,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142272125] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:40,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:40,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 02:52:40,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847330730] [2023-04-02 02:52:40,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:40,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:52:40,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:40,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:52:40,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 02:52:40,556 INFO L87 Difference]: Start difference. First operand 646 states and 991 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:45,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:45,469 INFO L93 Difference]: Finished difference Result 1469 states and 2390 transitions. [2023-04-02 02:52:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:45,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 98 [2023-04-02 02:52:45,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:45,474 INFO L225 Difference]: With dead ends: 1469 [2023-04-02 02:52:45,474 INFO L226 Difference]: Without dead ends: 888 [2023-04-02 02:52:45,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:45,476 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 2047 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 3895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:45,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2185 Valid, 584 Invalid, 3895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [655 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 02:52:45,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-04-02 02:52:45,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 646. [2023-04-02 02:52:45,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 463 states have (on average 1.5615550755939525) internal successors, (723), 488 states have internal predecessors, (723), 132 states have call successors, (132), 52 states have call predecessors, (132), 50 states have return successors, (132), 118 states have call predecessors, (132), 127 states have call successors, (132) [2023-04-02 02:52:45,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 987 transitions. [2023-04-02 02:52:45,586 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 987 transitions. Word has length 98 [2023-04-02 02:52:45,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:45,586 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 987 transitions. [2023-04-02 02:52:45,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 4 states have internal predecessors, (59), 3 states have call successors, (22), 5 states have call predecessors, (22), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:52:45,586 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 987 transitions. [2023-04-02 02:52:45,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 02:52:45,587 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:45,587 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:45,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 02:52:45,588 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:45,588 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:45,588 INFO L85 PathProgramCache]: Analyzing trace with hash -186074041, now seen corresponding path program 1 times [2023-04-02 02:52:45,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:45,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175840726] [2023-04-02 02:52:45,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:45,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:45,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:45,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:45,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:45,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:45,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:52:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-04-02 02:52:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:52:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:52:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:52:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:45,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:45,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:45,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175840726] [2023-04-02 02:52:45,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175840726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:45,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:45,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:45,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296200572] [2023-04-02 02:52:45,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:45,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:45,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:45,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:45,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:45,984 INFO L87 Difference]: Start difference. First operand 646 states and 987 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:52,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:52,136 INFO L93 Difference]: Finished difference Result 1479 states and 2411 transitions. [2023-04-02 02:52:52,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:52,137 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 98 [2023-04-02 02:52:52,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:52,141 INFO L225 Difference]: With dead ends: 1479 [2023-04-02 02:52:52,141 INFO L226 Difference]: Without dead ends: 903 [2023-04-02 02:52:52,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:52:52,143 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 1401 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 7126 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 7581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 7126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:52,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 1127 Invalid, 7581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [455 Valid, 7126 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-02 02:52:52,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2023-04-02 02:52:52,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 650. [2023-04-02 02:52:52,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 464 states have (on average 1.5603448275862069) internal successors, (724), 492 states have internal predecessors, (724), 134 states have call successors, (134), 52 states have call predecessors, (134), 51 states have return successors, (136), 118 states have call predecessors, (136), 129 states have call successors, (136) [2023-04-02 02:52:52,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 994 transitions. [2023-04-02 02:52:52,284 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 994 transitions. Word has length 98 [2023-04-02 02:52:52,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:52,285 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 994 transitions. [2023-04-02 02:52:52,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 7 states have internal predecessors, (59), 4 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2023-04-02 02:52:52,285 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 994 transitions. [2023-04-02 02:52:52,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 02:52:52,286 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:52,286 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:52,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 02:52:52,286 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:52,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:52,288 INFO L85 PathProgramCache]: Analyzing trace with hash -714317977, now seen corresponding path program 1 times [2023-04-02 02:52:52,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:52,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082592958] [2023-04-02 02:52:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:52,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:52,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:52,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:52:52,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:52:52,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:52:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:52:52,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 02:52:52,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:52,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082592958] [2023-04-02 02:52:52,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082592958] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:52,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:52,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 02:52:52,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219733884] [2023-04-02 02:52:52,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:52,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:52:52,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:52,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:52:52,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-04-02 02:52:52,761 INFO L87 Difference]: Start difference. First operand 650 states and 994 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:53:00,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:00,433 INFO L93 Difference]: Finished difference Result 2160 states and 3558 transitions. [2023-04-02 02:53:00,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:53:00,433 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 99 [2023-04-02 02:53:00,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:00,440 INFO L225 Difference]: With dead ends: 2160 [2023-04-02 02:53:00,440 INFO L226 Difference]: Without dead ends: 1587 [2023-04-02 02:53:00,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:53:00,442 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 2184 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 3334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 674 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:00,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 431 Invalid, 3334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [674 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-04-02 02:53:00,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2023-04-02 02:53:00,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1169. [2023-04-02 02:53:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 844 states have (on average 1.5781990521327014) internal successors, (1332), 890 states have internal predecessors, (1332), 234 states have call successors, (234), 85 states have call predecessors, (234), 90 states have return successors, (252), 205 states have call predecessors, (252), 228 states have call successors, (252) [2023-04-02 02:53:00,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1818 transitions. [2023-04-02 02:53:00,696 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1818 transitions. Word has length 99 [2023-04-02 02:53:00,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:00,696 INFO L495 AbstractCegarLoop]: Abstraction has 1169 states and 1818 transitions. [2023-04-02 02:53:00,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 6 states have call predecessors, (22), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 02:53:00,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1818 transitions. [2023-04-02 02:53:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 02:53:00,701 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:00,701 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:00,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 02:53:00,701 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:00,702 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:00,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1271714639, now seen corresponding path program 1 times [2023-04-02 02:53:00,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:00,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884687525] [2023-04-02 02:53:00,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:00,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:01,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:01,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:53:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:53:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:53:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:53:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:01,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 02:53:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 02:53:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 02:53:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,450 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:53:01,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884687525] [2023-04-02 02:53:01,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884687525] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:01,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298498737] [2023-04-02 02:53:01,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:01,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:01,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:01,453 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 02:53:01,458 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 02:53:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:01,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:53:01,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:02,083 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:53:02,084 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:02,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298498737] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:02,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:02,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2023-04-02 02:53:02,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338556917] [2023-04-02 02:53:02,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:02,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:53:02,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:02,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:53:02,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:02,085 INFO L87 Difference]: Start difference. First operand 1169 states and 1818 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 02:53:02,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:02,818 INFO L93 Difference]: Finished difference Result 2945 states and 4575 transitions. [2023-04-02 02:53:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:02,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 157 [2023-04-02 02:53:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:02,825 INFO L225 Difference]: With dead ends: 2945 [2023-04-02 02:53:02,825 INFO L226 Difference]: Without dead ends: 1853 [2023-04-02 02:53:02,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:02,829 INFO L413 NwaCegarLoop]: 1239 mSDtfsCounter, 886 mSDsluCounter, 3950 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 5189 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:02,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 5189 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:53:02,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2023-04-02 02:53:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1850. [2023-04-02 02:53:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1326 states have (on average 1.5467571644042233) internal successors, (2051), 1391 states have internal predecessors, (2051), 367 states have call successors, (367), 139 states have call predecessors, (367), 156 states have return successors, (420), 332 states have call predecessors, (420), 359 states have call successors, (420) [2023-04-02 02:53:03,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2838 transitions. [2023-04-02 02:53:03,210 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2838 transitions. Word has length 157 [2023-04-02 02:53:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:03,210 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 2838 transitions. [2023-04-02 02:53:03,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 02:53:03,211 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2838 transitions. [2023-04-02 02:53:03,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-04-02 02:53:03,214 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:03,214 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:03,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:03,424 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,SelfDestructingSolverStorable17 [2023-04-02 02:53:03,424 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:03,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:03,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1237509805, now seen corresponding path program 1 times [2023-04-02 02:53:03,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:03,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418485745] [2023-04-02 02:53:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:03,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:03,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:03,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:03,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:03,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:03,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:53:04,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:04,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:53:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:53:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 02:53:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 02:53:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:04,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418485745] [2023-04-02 02:53:04,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418485745] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:04,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48947009] [2023-04-02 02:53:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:04,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:04,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:04,149 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 02:53:04,151 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 02:53:04,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:04,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:04,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:04,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:04,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48947009] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:04,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:04,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2023-04-02 02:53:04,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300096335] [2023-04-02 02:53:04,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:04,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:04,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:04,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:53:04,651 INFO L87 Difference]: Start difference. First operand 1850 states and 2838 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:05,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:05,523 INFO L93 Difference]: Finished difference Result 3655 states and 5792 transitions. [2023-04-02 02:53:05,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:05,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 158 [2023-04-02 02:53:05,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:05,530 INFO L225 Difference]: With dead ends: 3655 [2023-04-02 02:53:05,530 INFO L226 Difference]: Without dead ends: 1882 [2023-04-02 02:53:05,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:05,536 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 866 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:05,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 2292 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1882 states. [2023-04-02 02:53:05,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1882 to 1882. [2023-04-02 02:53:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1882 states, 1354 states have (on average 1.5502215657311669) internal successors, (2099), 1419 states have internal predecessors, (2099), 367 states have call successors, (367), 143 states have call predecessors, (367), 160 states have return successors, (424), 332 states have call predecessors, (424), 359 states have call successors, (424) [2023-04-02 02:53:05,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1882 states to 1882 states and 2890 transitions. [2023-04-02 02:53:05,976 INFO L78 Accepts]: Start accepts. Automaton has 1882 states and 2890 transitions. Word has length 158 [2023-04-02 02:53:05,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:05,976 INFO L495 AbstractCegarLoop]: Abstraction has 1882 states and 2890 transitions. [2023-04-02 02:53:05,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1882 states and 2890 transitions. [2023-04-02 02:53:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 02:53:05,980 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:05,981 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:05,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:06,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:06,181 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:06,181 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:06,182 INFO L85 PathProgramCache]: Analyzing trace with hash 674041058, now seen corresponding path program 1 times [2023-04-02 02:53:06,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:06,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802282219] [2023-04-02 02:53:06,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:06,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:53:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:53:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:53:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 02:53:06,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 02:53:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 02:53:06,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-02 02:53:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802282219] [2023-04-02 02:53:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802282219] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329809054] [2023-04-02 02:53:06,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:06,828 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 02:53:06,848 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 02:53:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:07,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:07,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:07,341 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:07,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1329809054] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:07,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:07,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-04-02 02:53:07,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141314588] [2023-04-02 02:53:07,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:07,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:07,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:07,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:07,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:07,343 INFO L87 Difference]: Start difference. First operand 1882 states and 2890 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:08,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:08,167 INFO L93 Difference]: Finished difference Result 3719 states and 5884 transitions. [2023-04-02 02:53:08,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:08,168 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 161 [2023-04-02 02:53:08,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:08,176 INFO L225 Difference]: With dead ends: 3719 [2023-04-02 02:53:08,176 INFO L226 Difference]: Without dead ends: 1914 [2023-04-02 02:53:08,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:53:08,183 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 876 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:08,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 2290 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2023-04-02 02:53:08,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1914. [2023-04-02 02:53:08,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1382 states have (on average 1.5535455861070913) internal successors, (2147), 1447 states have internal predecessors, (2147), 367 states have call successors, (367), 147 states have call predecessors, (367), 164 states have return successors, (428), 332 states have call predecessors, (428), 359 states have call successors, (428) [2023-04-02 02:53:08,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2942 transitions. [2023-04-02 02:53:08,615 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2942 transitions. Word has length 161 [2023-04-02 02:53:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:08,616 INFO L495 AbstractCegarLoop]: Abstraction has 1914 states and 2942 transitions. [2023-04-02 02:53:08,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:08,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2942 transitions. [2023-04-02 02:53:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:53:08,620 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:08,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:08,631 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 02:53:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:08,831 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:08,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:08,831 INFO L85 PathProgramCache]: Analyzing trace with hash -500615663, now seen corresponding path program 1 times [2023-04-02 02:53:08,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:08,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172741] [2023-04-02 02:53:08,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:08,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:09,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:09,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:09,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:09,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:53:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:53:09,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,387 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 02:53:09,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:09,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172741] [2023-04-02 02:53:09,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172741] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:09,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783226380] [2023-04-02 02:53:09,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:09,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:09,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:09,389 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 02:53:09,391 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 02:53:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:09,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 2569 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:09,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:09,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:09,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783226380] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:09,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:09,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-04-02 02:53:09,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455299673] [2023-04-02 02:53:09,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:09,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:09,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:09,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:09,897 INFO L87 Difference]: Start difference. First operand 1914 states and 2942 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:10,708 INFO L93 Difference]: Finished difference Result 3783 states and 5976 transitions. [2023-04-02 02:53:10,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:10,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 164 [2023-04-02 02:53:10,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:10,718 INFO L225 Difference]: With dead ends: 3783 [2023-04-02 02:53:10,718 INFO L226 Difference]: Without dead ends: 1946 [2023-04-02 02:53:10,726 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:53:10,726 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 856 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 2292 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [874 Valid, 2292 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:10,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2023-04-02 02:53:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1946. [2023-04-02 02:53:11,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1946 states, 1410 states have (on average 1.5567375886524824) internal successors, (2195), 1475 states have internal predecessors, (2195), 367 states have call successors, (367), 151 states have call predecessors, (367), 168 states have return successors, (432), 332 states have call predecessors, (432), 359 states have call successors, (432) [2023-04-02 02:53:11,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2994 transitions. [2023-04-02 02:53:11,137 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2994 transitions. Word has length 164 [2023-04-02 02:53:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:11,139 INFO L495 AbstractCegarLoop]: Abstraction has 1946 states and 2994 transitions. [2023-04-02 02:53:11,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2994 transitions. [2023-04-02 02:53:11,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-04-02 02:53:11,142 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:11,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:11,153 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 02:53:11,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:11,351 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:11,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:11,351 INFO L85 PathProgramCache]: Analyzing trace with hash -204697474, now seen corresponding path program 1 times [2023-04-02 02:53:11,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:11,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017359897] [2023-04-02 02:53:11,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:11,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:11,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:11,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:11,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:11,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 02:53:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:53:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:53:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:11,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:53:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 02:53:11,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:53:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 02:53:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017359897] [2023-04-02 02:53:11,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017359897] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302173509] [2023-04-02 02:53:11,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:11,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:11,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:11,959 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 02:53:11,961 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 02:53:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:12,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:12,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:53:12,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:12,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302173509] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:12,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:12,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-04-02 02:53:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654668233] [2023-04-02 02:53:12,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:12,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:12,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:12,457 INFO L87 Difference]: Start difference. First operand 1946 states and 2994 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:13,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:13,330 INFO L93 Difference]: Finished difference Result 3847 states and 6068 transitions. [2023-04-02 02:53:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) Word has length 167 [2023-04-02 02:53:13,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:13,340 INFO L225 Difference]: With dead ends: 3847 [2023-04-02 02:53:13,340 INFO L226 Difference]: Without dead ends: 1978 [2023-04-02 02:53:13,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 208 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:53:13,347 INFO L413 NwaCegarLoop]: 918 mSDtfsCounter, 870 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 888 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:13,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [888 Valid, 2290 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:13,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2023-04-02 02:53:13,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1978. [2023-04-02 02:53:13,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1438 states have (on average 1.5598052851182198) internal successors, (2243), 1503 states have internal predecessors, (2243), 367 states have call successors, (367), 155 states have call predecessors, (367), 172 states have return successors, (436), 332 states have call predecessors, (436), 359 states have call successors, (436) [2023-04-02 02:53:13,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 3046 transitions. [2023-04-02 02:53:13,750 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 3046 transitions. Word has length 167 [2023-04-02 02:53:13,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:13,751 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 3046 transitions. [2023-04-02 02:53:13,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (31), 3 states have call predecessors, (31), 3 states have return successors, (24), 2 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-02 02:53:13,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 3046 transitions. [2023-04-02 02:53:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 02:53:13,754 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:13,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:13,779 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 02:53:13,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-04-02 02:53:13,962 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:13,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:13,962 INFO L85 PathProgramCache]: Analyzing trace with hash -655339659, now seen corresponding path program 1 times [2023-04-02 02:53:13,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:13,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537798878] [2023-04-02 02:53:13,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:13,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:14,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:14,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:14,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:14,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:53:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:14,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:14,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,847 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-02 02:53:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537798878] [2023-04-02 02:53:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537798878] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720930177] [2023-04-02 02:53:14,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:14,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:14,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:14,849 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 02:53:14,899 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 02:53:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:15,267 INFO L262 TraceCheckSpWp]: Trace formula consists of 2575 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-02 02:53:15,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 02:53:15,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:15,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720930177] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:15,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:15,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 02:53:15,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598166197] [2023-04-02 02:53:15,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:15,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:53:15,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:15,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:53:15,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:15,425 INFO L87 Difference]: Start difference. First operand 1978 states and 3046 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 6 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-04-02 02:53:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:17,346 INFO L93 Difference]: Finished difference Result 3729 states and 5753 transitions. [2023-04-02 02:53:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:17,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 6 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) Word has length 170 [2023-04-02 02:53:17,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:17,352 INFO L225 Difference]: With dead ends: 3729 [2023-04-02 02:53:17,352 INFO L226 Difference]: Without dead ends: 1831 [2023-04-02 02:53:17,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=396, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:53:17,357 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 1454 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1534 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 3302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:17,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1534 Valid, 414 Invalid, 3302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-02 02:53:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2023-04-02 02:53:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1774. [2023-04-02 02:53:17,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1260 states have (on average 1.5341269841269842) internal successors, (1933), 1333 states have internal predecessors, (1933), 351 states have call successors, (351), 141 states have call predecessors, (351), 162 states have return successors, (422), 318 states have call predecessors, (422), 343 states have call successors, (422) [2023-04-02 02:53:17,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2706 transitions. [2023-04-02 02:53:17,696 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2706 transitions. Word has length 170 [2023-04-02 02:53:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:17,696 INFO L495 AbstractCegarLoop]: Abstraction has 1774 states and 2706 transitions. [2023-04-02 02:53:17,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 6 states have call successors, (32), 5 states have call predecessors, (32), 5 states have return successors, (25), 6 states have call predecessors, (25), 6 states have call successors, (25) [2023-04-02 02:53:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2706 transitions. [2023-04-02 02:53:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 02:53:17,699 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:17,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:17,708 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 02:53:17,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:17,907 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:17,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:17,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1542562505, now seen corresponding path program 1 times [2023-04-02 02:53:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:17,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002657333] [2023-04-02 02:53:17,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:18,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:18,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:18,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:18,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:18,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:53:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:18,822 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-02 02:53:18,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:18,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002657333] [2023-04-02 02:53:18,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002657333] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:18,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392491491] [2023-04-02 02:53:18,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:18,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:18,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:18,823 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 02:53:18,852 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 02:53:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:19,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 2578 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-02 02:53:19,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:19,396 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:19,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:19,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392491491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:19,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:19,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2023-04-02 02:53:19,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950491282] [2023-04-02 02:53:19,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:19,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:53:19,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:19,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:53:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:53:19,399 INFO L87 Difference]: Start difference. First operand 1774 states and 2706 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 02:53:24,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:24,120 INFO L93 Difference]: Finished difference Result 6954 states and 10944 transitions. [2023-04-02 02:53:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:53:24,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 170 [2023-04-02 02:53:24,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:24,140 INFO L225 Difference]: With dead ends: 6954 [2023-04-02 02:53:24,140 INFO L226 Difference]: Without dead ends: 5259 [2023-04-02 02:53:24,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=136, Invalid=1054, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 02:53:24,145 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 2766 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 7455 mSolverCounterSat, 765 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2874 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 8220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 765 IncrementalHoareTripleChecker+Valid, 7455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:24,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2874 Valid, 964 Invalid, 8220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [765 Valid, 7455 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 02:53:24,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5259 states. [2023-04-02 02:53:25,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5259 to 5092. [2023-04-02 02:53:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5092 states, 3630 states have (on average 1.537465564738292) internal successors, (5581), 3818 states have internal predecessors, (5581), 990 states have call successors, (990), 381 states have call predecessors, (990), 471 states have return successors, (1393), 948 states have call predecessors, (1393), 978 states have call successors, (1393) [2023-04-02 02:53:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5092 states to 5092 states and 7964 transitions. [2023-04-02 02:53:25,193 INFO L78 Accepts]: Start accepts. Automaton has 5092 states and 7964 transitions. Word has length 170 [2023-04-02 02:53:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:25,194 INFO L495 AbstractCegarLoop]: Abstraction has 5092 states and 7964 transitions. [2023-04-02 02:53:25,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 4 states have call successors, (31), 4 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 02:53:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 5092 states and 7964 transitions. [2023-04-02 02:53:25,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 02:53:25,198 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:25,198 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:25,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-04-02 02:53:25,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:25,426 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:25,426 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:25,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1167655217, now seen corresponding path program 1 times [2023-04-02 02:53:25,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:25,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115538236] [2023-04-02 02:53:25,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:25,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:25,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:26,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:26,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:26,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:26,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:53:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:53:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:53:26,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,318 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-04-02 02:53:26,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:26,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115538236] [2023-04-02 02:53:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115538236] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:26,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:26,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:53:26,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638832685] [2023-04-02 02:53:26,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:26,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:53:26,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:26,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:53:26,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:53:26,320 INFO L87 Difference]: Start difference. First operand 5092 states and 7964 transitions. Second operand has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 02:53:47,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:47,775 INFO L93 Difference]: Finished difference Result 22280 states and 38175 transitions. [2023-04-02 02:53:47,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-02 02:53:47,776 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 175 [2023-04-02 02:53:47,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:47,845 INFO L225 Difference]: With dead ends: 22280 [2023-04-02 02:53:47,846 INFO L226 Difference]: Without dead ends: 17271 [2023-04-02 02:53:47,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 63 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=479, Invalid=1243, Unknown=0, NotChecked=0, Total=1722 [2023-04-02 02:53:47,865 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 5897 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 6728 mSolverCounterSat, 3247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5973 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 9975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3247 IncrementalHoareTripleChecker+Valid, 6728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:47,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5973 Valid, 608 Invalid, 9975 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3247 Valid, 6728 Invalid, 0 Unknown, 0 Unchecked, 15.9s Time] [2023-04-02 02:53:47,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17271 states. [2023-04-02 02:53:51,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17271 to 14034. [2023-04-02 02:53:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14034 states, 9835 states have (on average 1.5292323335027962) internal successors, (15040), 10367 states have internal predecessors, (15040), 2824 states have call successors, (2824), 1002 states have call predecessors, (2824), 1374 states have return successors, (4582), 2820 states have call predecessors, (4582), 2796 states have call successors, (4582) [2023-04-02 02:53:51,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14034 states to 14034 states and 22446 transitions. [2023-04-02 02:53:51,270 INFO L78 Accepts]: Start accepts. Automaton has 14034 states and 22446 transitions. Word has length 175 [2023-04-02 02:53:51,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:51,270 INFO L495 AbstractCegarLoop]: Abstraction has 14034 states and 22446 transitions. [2023-04-02 02:53:51,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.181818181818182) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (31), 8 states have call predecessors, (31), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 02:53:51,271 INFO L276 IsEmpty]: Start isEmpty. Operand 14034 states and 22446 transitions. [2023-04-02 02:53:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 02:53:51,279 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:51,279 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 02:53:51,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 02:53:51,279 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:51,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:51,280 INFO L85 PathProgramCache]: Analyzing trace with hash 270261939, now seen corresponding path program 1 times [2023-04-02 02:53:51,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:51,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224094459] [2023-04-02 02:53:51,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:51,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:51,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:51,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:53:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:53:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:53:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:53:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-02 02:53:52,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:52,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224094459] [2023-04-02 02:53:52,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224094459] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:52,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733947362] [2023-04-02 02:53:52,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:52,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:52,227 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 02:53:52,227 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 02:53:52,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:52,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 2594 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 02:53:52,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:52,791 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:52,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733947362] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:52,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:52,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 02:53:52,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469477492] [2023-04-02 02:53:52,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:52,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:53:52,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:52,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:53:52,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:52,793 INFO L87 Difference]: Start difference. First operand 14034 states and 22446 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:53:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:55,975 INFO L93 Difference]: Finished difference Result 14101 states and 22608 transitions. [2023-04-02 02:53:55,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:55,975 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 175 [2023-04-02 02:53:55,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:56,038 INFO L225 Difference]: With dead ends: 14101 [2023-04-02 02:53:56,038 INFO L226 Difference]: Without dead ends: 14098 [2023-04-02 02:53:56,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 223 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:53:56,047 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 423 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:56,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 4392 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:56,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14098 states. [2023-04-02 02:53:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14098 to 14034. [2023-04-02 02:53:59,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14034 states, 9835 states have (on average 1.5276054905948144) internal successors, (15024), 10367 states have internal predecessors, (15024), 2824 states have call successors, (2824), 1002 states have call predecessors, (2824), 1374 states have return successors, (4582), 2820 states have call predecessors, (4582), 2796 states have call successors, (4582) [2023-04-02 02:53:59,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14034 states to 14034 states and 22430 transitions. [2023-04-02 02:53:59,306 INFO L78 Accepts]: Start accepts. Automaton has 14034 states and 22430 transitions. Word has length 175 [2023-04-02 02:53:59,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:59,306 INFO L495 AbstractCegarLoop]: Abstraction has 14034 states and 22430 transitions. [2023-04-02 02:53:59,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:53:59,306 INFO L276 IsEmpty]: Start isEmpty. Operand 14034 states and 22430 transitions. [2023-04-02 02:53:59,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-02 02:53:59,314 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:59,314 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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 02:53:59,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:59,515 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,SelfDestructingSolverStorable25 [2023-04-02 02:53:59,515 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:59,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2140545349, now seen corresponding path program 1 times [2023-04-02 02:53:59,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:59,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334581614] [2023-04-02 02:53:59,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:59,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:59,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:59,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:54:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 02:54:00,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:00,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 02:54:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:54:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:54:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:54:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:54:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 02:54:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 02:54:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-02 02:54:00,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 02:54:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-04-02 02:54:00,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:54:00,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334581614] [2023-04-02 02:54:00,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334581614] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:54:00,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:54:00,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 02:54:00,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765302386] [2023-04-02 02:54:00,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:54:00,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 02:54:00,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:54:00,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 02:54:00,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:54:00,295 INFO L87 Difference]: Start difference. First operand 14034 states and 22430 transitions. Second operand has 17 states, 15 states have (on average 7.2) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (35), 8 states have call predecessors, (35), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:54:15,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:54:15,387 INFO L93 Difference]: Finished difference Result 34871 states and 63347 transitions. [2023-04-02 02:54:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 02:54:15,388 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 7.2) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (35), 8 states have call predecessors, (35), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 207 [2023-04-02 02:54:15,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:54:15,499 INFO L225 Difference]: With dead ends: 34871 [2023-04-02 02:54:15,499 INFO L226 Difference]: Without dead ends: 20917 [2023-04-02 02:54:15,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=195, Invalid=927, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 02:54:15,548 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1804 mSDsluCounter, 1715 mSDsCounter, 0 mSdLazyCounter, 11237 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 1881 SdHoareTripleChecker+Invalid, 11996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 11237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:54:15,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1956 Valid, 1881 Invalid, 11996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [759 Valid, 11237 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-04-02 02:54:15,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20917 states. [2023-04-02 02:54:19,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20917 to 14627. [2023-04-02 02:54:19,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14627 states, 10211 states have (on average 1.523846831848007) internal successors, (15560), 10780 states have internal predecessors, (15560), 2969 states have call successors, (2969), 1002 states have call predecessors, (2969), 1446 states have return successors, (4807), 2992 states have call predecessors, (4807), 2941 states have call successors, (4807) [2023-04-02 02:54:19,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14627 states to 14627 states and 23336 transitions. [2023-04-02 02:54:19,315 INFO L78 Accepts]: Start accepts. Automaton has 14627 states and 23336 transitions. Word has length 207 [2023-04-02 02:54:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:54:19,315 INFO L495 AbstractCegarLoop]: Abstraction has 14627 states and 23336 transitions. [2023-04-02 02:54:19,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 7.2) internal successors, (108), 9 states have internal predecessors, (108), 4 states have call successors, (35), 8 states have call predecessors, (35), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:54:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 14627 states and 23336 transitions. [2023-04-02 02:54:19,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2023-04-02 02:54:19,324 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:54:19,324 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2023-04-02 02:54:19,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 02:54:19,324 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:54:19,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:54:19,324 INFO L85 PathProgramCache]: Analyzing trace with hash 749978765, now seen corresponding path program 1 times [2023-04-02 02:54:19,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:54:19,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270814692] [2023-04-02 02:54:19,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:19,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:54:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:54:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:54:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:54:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-04-02 02:54:19,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:54:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:19,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:54:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 02:54:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:19,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:19,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 02:54:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:54:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:19,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:54:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:54:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:54:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 02:54:20,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:20,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 02:54:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 02:54:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2023-04-02 02:54:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:20,019 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-04-02 02:54:20,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:54:20,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270814692] [2023-04-02 02:54:20,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270814692] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:54:20,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:54:20,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:54:20,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096176889] [2023-04-02 02:54:20,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:54:20,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:54:20,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:54:20,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:54:20,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:54:20,021 INFO L87 Difference]: Start difference. First operand 14627 states and 23336 transitions. Second operand has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (37), 8 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-04-02 02:54:34,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:54:34,291 INFO L93 Difference]: Finished difference Result 34537 states and 60173 transitions. [2023-04-02 02:54:34,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-04-02 02:54:34,291 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (37), 8 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) Word has length 224 [2023-04-02 02:54:34,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:54:34,395 INFO L225 Difference]: With dead ends: 34537 [2023-04-02 02:54:34,395 INFO L226 Difference]: Without dead ends: 19950 [2023-04-02 02:54:34,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=155, Invalid=495, Unknown=0, NotChecked=0, Total=650 [2023-04-02 02:54:34,436 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1667 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 7369 mSolverCounterSat, 617 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1831 SdHoareTripleChecker+Valid, 1382 SdHoareTripleChecker+Invalid, 7986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 617 IncrementalHoareTripleChecker+Valid, 7369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:54:34,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1831 Valid, 1382 Invalid, 7986 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [617 Valid, 7369 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 02:54:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19950 states. [2023-04-02 02:54:37,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19950 to 13965. [2023-04-02 02:54:37,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13965 states, 9816 states have (on average 1.531682966585167) internal successors, (15035), 10273 states have internal predecessors, (15035), 2824 states have call successors, (2824), 953 states have call predecessors, (2824), 1324 states have return successors, (4333), 2886 states have call predecessors, (4333), 2796 states have call successors, (4333) [2023-04-02 02:54:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13965 states to 13965 states and 22192 transitions. [2023-04-02 02:54:37,969 INFO L78 Accepts]: Start accepts. Automaton has 13965 states and 22192 transitions. Word has length 224 [2023-04-02 02:54:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:54:37,969 INFO L495 AbstractCegarLoop]: Abstraction has 13965 states and 22192 transitions. [2023-04-02 02:54:37,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 10.083333333333334) internal successors, (121), 6 states have internal predecessors, (121), 4 states have call successors, (37), 8 states have call predecessors, (37), 4 states have return successors, (30), 4 states have call predecessors, (30), 4 states have call successors, (30) [2023-04-02 02:54:37,969 INFO L276 IsEmpty]: Start isEmpty. Operand 13965 states and 22192 transitions. [2023-04-02 02:54:37,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-02 02:54:37,973 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:54:37,974 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 3, 3, 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] [2023-04-02 02:54:37,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 02:54:37,974 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:54:37,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:54:37,974 INFO L85 PathProgramCache]: Analyzing trace with hash -903868967, now seen corresponding path program 1 times [2023-04-02 02:54:37,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:54:37,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164019102] [2023-04-02 02:54:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:37,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:54:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:54:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:54:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:54:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:38,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:54:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-02 02:54:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:54:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:54:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:54:39,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 02:54:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:54:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:54:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:54:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:54:39,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:54:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-04-02 02:54:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2023-04-02 02:54:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 02:54:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-04-02 02:54:39,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:54:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164019102] [2023-04-02 02:54:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164019102] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:54:39,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403075285] [2023-04-02 02:54:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:39,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:54:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:54:39,130 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 02:54:39,132 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 02:54:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:39,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 2948 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 02:54:39,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:54:40,061 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-04-02 02:54:40,061 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 02:54:40,653 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-02 02:54:40,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403075285] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 02:54:40,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 02:54:40,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 10, 9] total 38 [2023-04-02 02:54:40,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105330730] [2023-04-02 02:54:40,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 02:54:40,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-02 02:54:40,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:54:40,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-02 02:54:40,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 02:54:40,657 INFO L87 Difference]: Start difference. First operand 13965 states and 22192 transitions. Second operand has 38 states, 36 states have (on average 8.194444444444445) internal successors, (295), 28 states have internal predecessors, (295), 16 states have call successors, (97), 15 states have call predecessors, (97), 18 states have return successors, (83), 18 states have call predecessors, (83), 16 states have call successors, (83)