/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_spec13_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:48:44,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:48:44,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:48:44,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:48:44,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:48:44,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:48:44,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:48:44,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:48:44,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:48:44,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:48:44,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:48:44,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:48:44,901 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:48:44,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:48:44,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:48:44,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:48:44,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:48:44,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:48:44,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:48:44,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:48:44,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:48:44,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:48:44,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:48:44,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:48:44,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:48:44,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:48:44,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:48:44,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:48:44,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:48:44,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:48:44,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:48:44,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:48:44,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:48:44,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:48:44,925 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:48:44,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:48:44,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:48:44,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:48:44,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:48:44,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:48:44,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:48:44,927 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 02:48:44,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:48:44,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:48:44,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:48:44,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:48:44,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:48:44,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:48:44,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:48:44,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:48:44,950 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:48:44,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:48:44,950 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:48:44,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:48:44,951 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:44,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:48:44,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:48:44,953 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:48:44,953 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:48:44,953 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:48:44,953 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:48:45,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:48:45,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:48:45,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:48:45,139 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:48:45,139 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:48:45,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2023-04-02 02:48:46,078 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:48:46,342 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:48:46,342 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product32.cil.c [2023-04-02 02:48:46,354 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0884736ab/77f200098d82471ea76b66c271d6c73b/FLAG9eb276a0b [2023-04-02 02:48:46,363 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0884736ab/77f200098d82471ea76b66c271d6c73b [2023-04-02 02:48:46,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:48:46,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:48:46,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:46,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:48:46,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:48:46,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c480a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46, skipping insertion in model container [2023-04-02 02:48:46,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:48:46,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:48:46,524 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_spec13_product32.cil.c[1546,1559] [2023-04-02 02:48:46,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:46,758 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:48:46,768 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_spec13_product32.cil.c[1546,1559] [2023-04-02 02:48:46,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:46,884 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:48:46,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46 WrapperNode [2023-04-02 02:48:46,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:46,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:48:46,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:48:46,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:48:46,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:48:46,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:48:46,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:48:46,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:48:46,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (1/1) ... [2023-04-02 02:48:46,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:46,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:47,012 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 02:48:47,037 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 02:48:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:48:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:48:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:48:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:48:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:48:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:48:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:48:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:48:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__executivefloor [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:48:47,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-04-02 02:48:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-04-02 02:48:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:48:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:48:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:48:47,072 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:48:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:48:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:48:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:48:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:48:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:48:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:48:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:48:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:48:47,077 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:48:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:48:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:48:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__executivefloor [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:48:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:48:47,363 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:48:47,365 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:48:48,257 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:48:48,304 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:48:48,305 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:48:48,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:48 BoogieIcfgContainer [2023-04-02 02:48:48,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:48:48,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:48:48,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:48:48,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:48:48,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:48:46" (1/3) ... [2023-04-02 02:48:48,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea8c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:48, skipping insertion in model container [2023-04-02 02:48:48,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:46" (2/3) ... [2023-04-02 02:48:48,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ea8c83d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:48, skipping insertion in model container [2023-04-02 02:48:48,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:48" (3/3) ... [2023-04-02 02:48:48,312 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product32.cil.c [2023-04-02 02:48:48,323 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:48:48,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:48:48,368 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:48:48,372 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;@a6b38cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:48:48,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:48:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 851 states, 594 states have (on average 1.6228956228956228) internal successors, (964), 620 states have internal predecessors, (964), 187 states have call successors, (187), 58 states have call predecessors, (187), 58 states have return successors, (187), 180 states have call predecessors, (187), 187 states have call successors, (187) [2023-04-02 02:48:48,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 02:48:48,399 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:48,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:48,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:48,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:48,404 INFO L85 PathProgramCache]: Analyzing trace with hash 629341697, now seen corresponding path program 1 times [2023-04-02 02:48:48,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:48,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650496380] [2023-04-02 02:48:48,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:48,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:49,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:49,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 02:48:49,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:48:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:49,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,507 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:49,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:49,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650496380] [2023-04-02 02:48:49,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650496380] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:49,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721556030] [2023-04-02 02:48:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:49,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:49,514 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 02:48:49,544 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 02:48:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 1 conjunts are in the unsatisfiable core [2023-04-02 02:48:49,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:48:50,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:50,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721556030] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:50,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:50,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2023-04-02 02:48:50,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364428757] [2023-04-02 02:48:50,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:50,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-04-02 02:48:50,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:50,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-04-02 02:48:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:50,059 INFO L87 Difference]: Start difference. First operand has 851 states, 594 states have (on average 1.6228956228956228) internal successors, (964), 620 states have internal predecessors, (964), 187 states have call successors, (187), 58 states have call predecessors, (187), 58 states have return successors, (187), 180 states have call predecessors, (187), 187 states have call successors, (187) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:50,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:50,130 INFO L93 Difference]: Finished difference Result 1381 states and 2213 transitions. [2023-04-02 02:48:50,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-04-02 02:48:50,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-04-02 02:48:50,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:50,145 INFO L225 Difference]: With dead ends: 1381 [2023-04-02 02:48:50,145 INFO L226 Difference]: Without dead ends: 698 [2023-04-02 02:48:50,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:50,156 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:50,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:50,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 698 states. [2023-04-02 02:48:50,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 698 to 698. [2023-04-02 02:48:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 511 states have (on average 1.6281800391389432) internal successors, (832), 529 states have internal predecessors, (832), 136 states have call successors, (136), 55 states have call predecessors, (136), 50 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2023-04-02 02:48:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1098 transitions. [2023-04-02 02:48:50,233 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1098 transitions. Word has length 113 [2023-04-02 02:48:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:50,234 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 1098 transitions. [2023-04-02 02:48:50,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:50,234 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1098 transitions. [2023-04-02 02:48:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 02:48:50,237 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:50,237 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:50,247 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 02:48:50,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-04-02 02:48:50,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:50,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:50,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1436306337, now seen corresponding path program 1 times [2023-04-02 02:48:50,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:50,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75175048] [2023-04-02 02:48:50,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:50,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:50,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:50,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:50,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 02:48:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:48:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,038 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:51,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:51,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75175048] [2023-04-02 02:48:51,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75175048] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:51,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256897600] [2023-04-02 02:48:51,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:51,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:51,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:51,043 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 02:48:51,072 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 02:48:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 2557 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:51,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:51,513 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:51,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256897600] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:51,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:51,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-04-02 02:48:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395923854] [2023-04-02 02:48:51,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:51,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:51,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:51,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:51,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:51,517 INFO L87 Difference]: Start difference. First operand 698 states and 1098 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:51,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:51,624 INFO L93 Difference]: Finished difference Result 1379 states and 2186 transitions. [2023-04-02 02:48:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:51,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-04-02 02:48:51,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:51,629 INFO L225 Difference]: With dead ends: 1379 [2023-04-02 02:48:51,629 INFO L226 Difference]: Without dead ends: 707 [2023-04-02 02:48:51,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:51,632 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 26 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:51,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3240 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:51,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-04-02 02:48:51,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2023-04-02 02:48:51,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 519 states have (on average 1.630057803468208) internal successors, (846), 537 states have internal predecessors, (846), 136 states have call successors, (136), 56 states have call predecessors, (136), 51 states have return successors, (130), 126 states have call predecessors, (130), 130 states have call successors, (130) [2023-04-02 02:48:51,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1112 transitions. [2023-04-02 02:48:51,667 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1112 transitions. Word has length 113 [2023-04-02 02:48:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:51,668 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 1112 transitions. [2023-04-02 02:48:51,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:51,668 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1112 transitions. [2023-04-02 02:48:51,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 02:48:51,670 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:51,670 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:51,684 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 02:48:51,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-04-02 02:48:51,873 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:51,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:51,873 INFO L85 PathProgramCache]: Analyzing trace with hash -603072897, now seen corresponding path program 1 times [2023-04-02 02:48:51,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:51,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550933880] [2023-04-02 02:48:51,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:52,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:52,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:48:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 02:48:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:48:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:48:52,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:52,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550933880] [2023-04-02 02:48:52,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550933880] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:52,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373492973] [2023-04-02 02:48:52,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:52,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:52,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:52,388 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 02:48:52,390 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 02:48:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:52,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:52,870 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:52,870 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:52,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373492973] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:52,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:52,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-04-02 02:48:52,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85524983] [2023-04-02 02:48:52,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:52,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:52,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:52,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:52,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:52,872 INFO L87 Difference]: Start difference. First operand 707 states and 1112 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:52,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:52,979 INFO L93 Difference]: Finished difference Result 1397 states and 2211 transitions. [2023-04-02 02:48:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:52,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 115 [2023-04-02 02:48:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:52,983 INFO L225 Difference]: With dead ends: 1397 [2023-04-02 02:48:52,983 INFO L226 Difference]: Without dead ends: 718 [2023-04-02 02:48:52,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:52,985 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 84 mSDsluCounter, 5323 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:52,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 6408 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-04-02 02:48:53,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 714. [2023-04-02 02:48:53,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 714 states, 522 states have (on average 1.6264367816091954) internal successors, (849), 542 states have internal predecessors, (849), 138 states have call successors, (138), 56 states have call predecessors, (138), 53 states have return successors, (137), 128 states have call predecessors, (137), 132 states have call successors, (137) [2023-04-02 02:48:53,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 1124 transitions. [2023-04-02 02:48:53,006 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 1124 transitions. Word has length 115 [2023-04-02 02:48:53,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:53,007 INFO L495 AbstractCegarLoop]: Abstraction has 714 states and 1124 transitions. [2023-04-02 02:48:53,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:53,007 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 1124 transitions. [2023-04-02 02:48:53,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 02:48:53,008 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:53,008 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:53,018 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 02:48:53,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:53,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:53,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:53,214 INFO L85 PathProgramCache]: Analyzing trace with hash -781870139, now seen corresponding path program 1 times [2023-04-02 02:48:53,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:53,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679496079] [2023-04-02 02:48:53,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:53,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:53,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:53,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:53,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 02:48:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:53,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:53,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 02:48:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:53,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:48:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:48:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 02:48:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:53,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:53,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679496079] [2023-04-02 02:48:53,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679496079] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:53,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402925114] [2023-04-02 02:48:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:53,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:53,557 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 02:48:53,559 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 02:48:53,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:53,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:53,961 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:53,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402925114] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:53,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:53,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649273103] [2023-04-02 02:48:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:53,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:53,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:53,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:53,963 INFO L87 Difference]: Start difference. First operand 714 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:54,019 INFO L93 Difference]: Finished difference Result 1413 states and 2236 transitions. [2023-04-02 02:48:54,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:54,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 116 [2023-04-02 02:48:54,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:54,022 INFO L225 Difference]: With dead ends: 1413 [2023-04-02 02:48:54,022 INFO L226 Difference]: Without dead ends: 725 [2023-04-02 02:48:54,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:54,025 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 20 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:54,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3241 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:54,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-04-02 02:48:54,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 723. [2023-04-02 02:48:54,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 530 states have (on average 1.618867924528302) internal successors, (858), 550 states have internal predecessors, (858), 138 states have call successors, (138), 57 states have call predecessors, (138), 54 states have return successors, (136), 128 states have call predecessors, (136), 132 states have call successors, (136) [2023-04-02 02:48:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1132 transitions. [2023-04-02 02:48:54,042 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1132 transitions. Word has length 116 [2023-04-02 02:48:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:54,043 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1132 transitions. [2023-04-02 02:48:54,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1132 transitions. [2023-04-02 02:48:54,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-02 02:48:54,044 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:54,044 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:54,056 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 02:48:54,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:54,257 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:54,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1974652679, now seen corresponding path program 1 times [2023-04-02 02:48:54,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:54,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337698978] [2023-04-02 02:48:54,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:54,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:54,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:54,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 02:48:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-02 02:48:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:48:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:48:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 02:48:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:48:54,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:54,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337698978] [2023-04-02 02:48:54,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337698978] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:54,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350356967] [2023-04-02 02:48:54,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:54,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:54,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:54,711 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 02:48:54,736 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 02:48:55,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:55,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:55,168 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:55,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350356967] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:55,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:55,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-02 02:48:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791943846] [2023-04-02 02:48:55,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:55,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:55,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:55,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:55,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:55,170 INFO L87 Difference]: Start difference. First operand 723 states and 1132 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:55,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:55,266 INFO L93 Difference]: Finished difference Result 1414 states and 2227 transitions. [2023-04-02 02:48:55,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:55,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 116 [2023-04-02 02:48:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:55,270 INFO L225 Difference]: With dead ends: 1414 [2023-04-02 02:48:55,270 INFO L226 Difference]: Without dead ends: 732 [2023-04-02 02:48:55,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:55,273 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 95 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6407 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:55,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6407 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:55,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-04-02 02:48:55,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 723. [2023-04-02 02:48:55,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 530 states have (on average 1.618867924528302) internal successors, (858), 550 states have internal predecessors, (858), 138 states have call successors, (138), 57 states have call predecessors, (138), 54 states have return successors, (136), 128 states have call predecessors, (136), 132 states have call successors, (136) [2023-04-02 02:48:55,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1132 transitions. [2023-04-02 02:48:55,290 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1132 transitions. Word has length 116 [2023-04-02 02:48:55,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:55,290 INFO L495 AbstractCegarLoop]: Abstraction has 723 states and 1132 transitions. [2023-04-02 02:48:55,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:55,291 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1132 transitions. [2023-04-02 02:48:55,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-04-02 02:48:55,292 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:55,292 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:55,304 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 02:48:55,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:55,503 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:55,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1437883576, now seen corresponding path program 1 times [2023-04-02 02:48:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:55,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989335080] [2023-04-02 02:48:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:55,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:55,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:55,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:48:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:48:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:55,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:48:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:48:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 02:48:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:48:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,899 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:55,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:55,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989335080] [2023-04-02 02:48:55,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989335080] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:55,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513303056] [2023-04-02 02:48:55,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:55,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:55,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:55,901 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 02:48:55,903 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 02:48:56,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:56,298 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:56,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:56,326 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:56,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513303056] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:56,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:56,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833859316] [2023-04-02 02:48:56,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:56,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:56,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:56,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:56,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:56,327 INFO L87 Difference]: Start difference. First operand 723 states and 1132 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:56,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:56,486 INFO L93 Difference]: Finished difference Result 1447 states and 2297 transitions. [2023-04-02 02:48:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:56,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 119 [2023-04-02 02:48:56,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:56,494 INFO L225 Difference]: With dead ends: 1447 [2023-04-02 02:48:56,495 INFO L226 Difference]: Without dead ends: 765 [2023-04-02 02:48:56,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:56,499 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 137 mSDsluCounter, 2049 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3094 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:56,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3094 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 765 states. [2023-04-02 02:48:56,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 765 to 762. [2023-04-02 02:48:56,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 567 states have (on average 1.6402116402116402) internal successors, (930), 587 states have internal predecessors, (930), 139 states have call successors, (139), 58 states have call predecessors, (139), 55 states have return successors, (136), 129 states have call predecessors, (136), 133 states have call successors, (136) [2023-04-02 02:48:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1205 transitions. [2023-04-02 02:48:56,519 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1205 transitions. Word has length 119 [2023-04-02 02:48:56,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:56,519 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 1205 transitions. [2023-04-02 02:48:56,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:56,520 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1205 transitions. [2023-04-02 02:48:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-04-02 02:48:56,521 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:56,521 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:56,533 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 02:48:56,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:56,733 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:56,734 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:56,734 INFO L85 PathProgramCache]: Analyzing trace with hash -1344333352, now seen corresponding path program 1 times [2023-04-02 02:48:56,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:56,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583351665] [2023-04-02 02:48:56,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:56,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:57,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:48:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:48:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:48:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:48:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,122 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:57,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583351665] [2023-04-02 02:48:57,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583351665] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:57,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015923325] [2023-04-02 02:48:57,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:57,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:57,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:57,124 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 02:48:57,126 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 02:48:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 2564 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:57,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 02:48:57,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:57,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015923325] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:57,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:57,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:57,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456112769] [2023-04-02 02:48:57,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:57,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:57,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:57,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:57,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:57,558 INFO L87 Difference]: Start difference. First operand 762 states and 1205 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:57,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:57,615 INFO L93 Difference]: Finished difference Result 1471 states and 2343 transitions. [2023-04-02 02:48:57,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:57,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2023-04-02 02:48:57,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:57,637 INFO L225 Difference]: With dead ends: 1471 [2023-04-02 02:48:57,637 INFO L226 Difference]: Without dead ends: 762 [2023-04-02 02:48:57,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:57,641 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 35 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3239 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:57,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3239 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:57,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-04-02 02:48:57,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 762. [2023-04-02 02:48:57,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 567 states have (on average 1.6313932980599648) internal successors, (925), 587 states have internal predecessors, (925), 139 states have call successors, (139), 58 states have call predecessors, (139), 55 states have return successors, (136), 129 states have call predecessors, (136), 133 states have call successors, (136) [2023-04-02 02:48:57,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1200 transitions. [2023-04-02 02:48:57,659 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1200 transitions. Word has length 121 [2023-04-02 02:48:57,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:57,659 INFO L495 AbstractCegarLoop]: Abstraction has 762 states and 1200 transitions. [2023-04-02 02:48:57,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:57,659 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1200 transitions. [2023-04-02 02:48:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-02 02:48:57,660 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:57,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:57,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:57,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:57,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:57,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:57,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1497168916, now seen corresponding path program 1 times [2023-04-02 02:48:57,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:57,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148847694] [2023-04-02 02:48:57,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:58,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:58,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:48:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:48:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:48:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:58,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:58,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148847694] [2023-04-02 02:48:58,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148847694] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:58,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087281750] [2023-04-02 02:48:58,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:58,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:58,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:58,249 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 02:48:58,251 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 02:48:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 2565 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:58,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:58,685 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:48:58,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:58,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087281750] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:58,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:58,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-04-02 02:48:58,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775973101] [2023-04-02 02:48:58,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:58,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:58,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:58,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:58,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:58,688 INFO L87 Difference]: Start difference. First operand 762 states and 1200 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:58,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:58,783 INFO L93 Difference]: Finished difference Result 1439 states and 2275 transitions. [2023-04-02 02:48:58,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:58,783 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 122 [2023-04-02 02:48:58,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:58,787 INFO L225 Difference]: With dead ends: 1439 [2023-04-02 02:48:58,787 INFO L226 Difference]: Without dead ends: 776 [2023-04-02 02:48:58,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:58,790 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 83 mSDsluCounter, 5332 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 6419 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:58,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 6419 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-04-02 02:48:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 769. [2023-04-02 02:48:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 570 states have (on average 1.6280701754385964) internal successors, (928), 592 states have internal predecessors, (928), 141 states have call successors, (141), 58 states have call predecessors, (141), 57 states have return successors, (142), 131 states have call predecessors, (142), 135 states have call successors, (142) [2023-04-02 02:48:58,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1211 transitions. [2023-04-02 02:48:58,819 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1211 transitions. Word has length 122 [2023-04-02 02:48:58,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:58,820 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1211 transitions. [2023-04-02 02:48:58,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1211 transitions. [2023-04-02 02:48:58,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-04-02 02:48:58,821 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:58,821 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:58,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-02 02:48:59,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-04-02 02:48:59,022 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:59,022 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:59,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1861638606, now seen corresponding path program 1 times [2023-04-02 02:48:59,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:59,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207135485] [2023-04-02 02:48:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:59,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:59,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:48:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:48:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:48:59,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:48:59,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,399 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:59,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207135485] [2023-04-02 02:48:59,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207135485] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:59,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122750119] [2023-04-02 02:48:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:59,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:59,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:59,401 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 02:48:59,403 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 02:48:59,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:59,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:48:59,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:59,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122750119] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:59,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:59,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-04-02 02:48:59,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128240728] [2023-04-02 02:48:59,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:59,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:59,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:59,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:59,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:59,843 INFO L87 Difference]: Start difference. First operand 769 states and 1211 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:59,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:59,949 INFO L93 Difference]: Finished difference Result 1439 states and 2274 transitions. [2023-04-02 02:48:59,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:59,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 123 [2023-04-02 02:48:59,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:59,953 INFO L225 Difference]: With dead ends: 1439 [2023-04-02 02:48:59,954 INFO L226 Difference]: Without dead ends: 776 [2023-04-02 02:48:59,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:59,958 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 94 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6407 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:59,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6407 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:59,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-04-02 02:48:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 766. [2023-04-02 02:48:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 569 states have (on average 1.6291739894551844) internal successors, (927), 590 states have internal predecessors, (927), 140 states have call successors, (140), 58 states have call predecessors, (140), 56 states have return successors, (138), 130 states have call predecessors, (138), 134 states have call successors, (138) [2023-04-02 02:48:59,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1205 transitions. [2023-04-02 02:48:59,978 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1205 transitions. Word has length 123 [2023-04-02 02:48:59,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:59,979 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1205 transitions. [2023-04-02 02:48:59,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1205 transitions. [2023-04-02 02:48:59,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-04-02 02:48:59,981 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:59,981 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:59,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:00,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:00,189 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:00,189 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:00,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2074508844, now seen corresponding path program 1 times [2023-04-02 02:49:00,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:00,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250173414] [2023-04-02 02:49:00,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:00,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:00,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:00,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:49:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:49:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:49:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:49:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:49:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:49:00,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,538 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:49:00,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:00,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250173414] [2023-04-02 02:49:00,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250173414] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:00,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [777545090] [2023-04-02 02:49:00,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:00,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:00,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:00,539 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:00,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 02:49:00,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 2566 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:49:00,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:00,913 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 02:49:00,913 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:00,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [777545090] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:00,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:00,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:49:00,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474731069] [2023-04-02 02:49:00,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:00,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:49:00,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:00,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:49:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:49:00,915 INFO L87 Difference]: Start difference. First operand 766 states and 1205 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:49:00,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:00,959 INFO L93 Difference]: Finished difference Result 1475 states and 2343 transitions. [2023-04-02 02:49:00,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:49:00,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 123 [2023-04-02 02:49:00,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:00,963 INFO L225 Difference]: With dead ends: 1475 [2023-04-02 02:49:00,963 INFO L226 Difference]: Without dead ends: 766 [2023-04-02 02:49:00,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:00,965 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 10 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:00,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3241 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:49:00,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2023-04-02 02:49:00,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2023-04-02 02:49:00,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 569 states have (on average 1.62390158172232) internal successors, (924), 590 states have internal predecessors, (924), 140 states have call successors, (140), 58 states have call predecessors, (140), 56 states have return successors, (138), 130 states have call predecessors, (138), 134 states have call successors, (138) [2023-04-02 02:49:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1202 transitions. [2023-04-02 02:49:00,984 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1202 transitions. Word has length 123 [2023-04-02 02:49:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:00,985 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1202 transitions. [2023-04-02 02:49:00,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:49:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1202 transitions. [2023-04-02 02:49:00,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 02:49:00,986 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:00,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:00,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:01,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 02:49:01,195 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:01,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:01,195 INFO L85 PathProgramCache]: Analyzing trace with hash 606699568, now seen corresponding path program 1 times [2023-04-02 02:49:01,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:01,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138824911] [2023-04-02 02:49:01,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:01,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:01,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:01,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:01,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:01,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:49:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:01,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:49:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:49:01,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:49:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:49:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,558 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:49:01,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:01,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138824911] [2023-04-02 02:49:01,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138824911] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:01,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120611984] [2023-04-02 02:49:01,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:01,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:01,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:01,560 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:01,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 02:49:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:01,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 2567 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:49:01,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:01,950 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:49:01,950 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:01,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120611984] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:01,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:01,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:49:01,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085941436] [2023-04-02 02:49:01,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:01,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:49:01,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:01,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:49:01,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:49:01,952 INFO L87 Difference]: Start difference. First operand 766 states and 1202 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:49:02,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:02,067 INFO L93 Difference]: Finished difference Result 1471 states and 2337 transitions. [2023-04-02 02:49:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:49:02,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 124 [2023-04-02 02:49:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:02,071 INFO L225 Difference]: With dead ends: 1471 [2023-04-02 02:49:02,071 INFO L226 Difference]: Without dead ends: 808 [2023-04-02 02:49:02,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:02,073 INFO L413 NwaCegarLoop]: 1031 mSDtfsCounter, 204 mSDsluCounter, 2043 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:02,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 3074 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2023-04-02 02:49:02,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 808. [2023-04-02 02:49:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 808 states, 607 states have (on average 1.6425041186161449) internal successors, (997), 629 states have internal predecessors, (997), 142 states have call successors, (142), 59 states have call predecessors, (142), 58 states have return successors, (140), 132 states have call predecessors, (140), 136 states have call successors, (140) [2023-04-02 02:49:02,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 808 states to 808 states and 1279 transitions. [2023-04-02 02:49:02,091 INFO L78 Accepts]: Start accepts. Automaton has 808 states and 1279 transitions. Word has length 124 [2023-04-02 02:49:02,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:02,091 INFO L495 AbstractCegarLoop]: Abstraction has 808 states and 1279 transitions. [2023-04-02 02:49:02,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:49:02,091 INFO L276 IsEmpty]: Start isEmpty. Operand 808 states and 1279 transitions. [2023-04-02 02:49:02,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-04-02 02:49:02,093 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:02,093 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:02,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:02,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-02 02:49:02,301 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:02,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash -588451211, now seen corresponding path program 1 times [2023-04-02 02:49:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:02,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145222370] [2023-04-02 02:49:02,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:02,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:49:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:49:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:49:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,663 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:49:02,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145222370] [2023-04-02 02:49:02,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145222370] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:02,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390963179] [2023-04-02 02:49:02,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:02,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:02,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:02,664 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:02,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 02:49:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:02,996 INFO L262 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 02:49:03,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:49:03,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:03,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390963179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:03,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:03,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-02 02:49:03,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606392623] [2023-04-02 02:49:03,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:03,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:49:03,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:03,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:49:03,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:49:03,238 INFO L87 Difference]: Start difference. First operand 808 states and 1279 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 02:49:03,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:03,347 INFO L93 Difference]: Finished difference Result 2108 states and 3370 transitions. [2023-04-02 02:49:03,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:49:03,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2023-04-02 02:49:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:03,353 INFO L225 Difference]: With dead ends: 2108 [2023-04-02 02:49:03,354 INFO L226 Difference]: Without dead ends: 1449 [2023-04-02 02:49:03,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:49:03,356 INFO L413 NwaCegarLoop]: 1095 mSDtfsCounter, 979 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 2120 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:03,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 2120 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1449 states. [2023-04-02 02:49:03,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1449 to 1376. [2023-04-02 02:49:03,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1376 states, 1046 states have (on average 1.6462715105162524) internal successors, (1722), 1077 states have internal predecessors, (1722), 236 states have call successors, (236), 94 states have call predecessors, (236), 93 states have return successors, (242), 217 states have call predecessors, (242), 229 states have call successors, (242) [2023-04-02 02:49:03,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 2200 transitions. [2023-04-02 02:49:03,396 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 2200 transitions. Word has length 126 [2023-04-02 02:49:03,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:03,397 INFO L495 AbstractCegarLoop]: Abstraction has 1376 states and 2200 transitions. [2023-04-02 02:49:03,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 02:49:03,397 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 2200 transitions. [2023-04-02 02:49:03,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:49:03,401 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:03,401 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:03,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:03,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-04-02 02:49:03,609 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:03,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:03,609 INFO L85 PathProgramCache]: Analyzing trace with hash -820482924, now seen corresponding path program 1 times [2023-04-02 02:49:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:03,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700067401] [2023-04-02 02:49:03,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:03,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:03,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:03,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:49:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:49:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:49:04,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:49:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:04,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,153 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:49:04,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:04,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700067401] [2023-04-02 02:49:04,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700067401] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:04,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118456457] [2023-04-02 02:49:04,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:04,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:04,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:04,155 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:04,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 02:49:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:04,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:49:04,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:04,544 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:04,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:04,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118456457] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:04,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:04,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-04-02 02:49:04,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969841571] [2023-04-02 02:49:04,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:04,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:49:04,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:04,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:49:04,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:04,545 INFO L87 Difference]: Start difference. First operand 1376 states and 2200 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:49:04,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:04,599 INFO L93 Difference]: Finished difference Result 3818 states and 6190 transitions. [2023-04-02 02:49:04,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:49:04,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 184 [2023-04-02 02:49:04,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:04,610 INFO L225 Difference]: With dead ends: 3818 [2023-04-02 02:49:04,611 INFO L226 Difference]: Without dead ends: 2592 [2023-04-02 02:49:04,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:04,616 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 1094 mSDsluCounter, 1042 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1094 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:04,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1094 Valid, 2207 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:49:04,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2592 states. [2023-04-02 02:49:04,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2592 to 2578. [2023-04-02 02:49:04,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 1967 states have (on average 1.6461616675139807) internal successors, (3238), 2021 states have internal predecessors, (3238), 439 states have call successors, (439), 170 states have call predecessors, (439), 171 states have return successors, (482), 412 states have call predecessors, (482), 430 states have call successors, (482) [2023-04-02 02:49:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 4159 transitions. [2023-04-02 02:49:04,723 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 4159 transitions. Word has length 184 [2023-04-02 02:49:04,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:04,723 INFO L495 AbstractCegarLoop]: Abstraction has 2578 states and 4159 transitions. [2023-04-02 02:49:04,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:49:04,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 4159 transitions. [2023-04-02 02:49:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:49:04,727 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:04,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:04,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-04-02 02:49:04,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 02:49:04,935 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:04,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash 23522578, now seen corresponding path program 1 times [2023-04-02 02:49:04,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429459490] [2023-04-02 02:49:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:04,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:05,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:05,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:49:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:49:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:05,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:49:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:49:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:49:05,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429459490] [2023-04-02 02:49:05,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429459490] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:05,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796698708] [2023-04-02 02:49:05,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:05,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:05,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:05,445 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:05,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 02:49:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:05,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 2943 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:49:05,848 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:05,987 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:05,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796698708] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:05,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:05,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-04-02 02:49:05,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230490926] [2023-04-02 02:49:05,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:05,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:49:05,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:05,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:49:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:05,989 INFO L87 Difference]: Start difference. First operand 2578 states and 4159 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 02:49:06,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:06,430 INFO L93 Difference]: Finished difference Result 6629 states and 10701 transitions. [2023-04-02 02:49:06,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:49:06,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 184 [2023-04-02 02:49:06,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:06,454 INFO L225 Difference]: With dead ends: 6629 [2023-04-02 02:49:06,454 INFO L226 Difference]: Without dead ends: 4200 [2023-04-02 02:49:06,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:49:06,466 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 1020 mSDsluCounter, 4369 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 5830 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:06,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1022 Valid, 5830 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:49:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4200 states. [2023-04-02 02:49:06,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4200 to 4196. [2023-04-02 02:49:06,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4196 states, 3203 states have (on average 1.620980330939744) internal successors, (5192), 3261 states have internal predecessors, (5192), 697 states have call successors, (697), 284 states have call predecessors, (697), 295 states have return successors, (836), 678 states have call predecessors, (836), 684 states have call successors, (836) [2023-04-02 02:49:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4196 states to 4196 states and 6725 transitions. [2023-04-02 02:49:06,632 INFO L78 Accepts]: Start accepts. Automaton has 4196 states and 6725 transitions. Word has length 184 [2023-04-02 02:49:06,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:06,633 INFO L495 AbstractCegarLoop]: Abstraction has 4196 states and 6725 transitions. [2023-04-02 02:49:06,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 02:49:06,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4196 states and 6725 transitions. [2023-04-02 02:49:06,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-04-02 02:49:06,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:06,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:06,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:06,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:06,849 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:06,849 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1165498967, now seen corresponding path program 1 times [2023-04-02 02:49:06,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:06,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867803211] [2023-04-02 02:49:06,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:06,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:07,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:07,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:07,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:07,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:07,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:07,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:49:07,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:49:07,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:49:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:49:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:49:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 02:49:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:49:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867803211] [2023-04-02 02:49:07,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867803211] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208427093] [2023-04-02 02:49:07,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:07,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:07,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:07,325 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:07,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 02:49:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 2940 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:49:07,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:07,843 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:49:07,843 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:07,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208427093] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:07,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:07,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:49:07,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652905767] [2023-04-02 02:49:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:07,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:49:07,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:07,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:49:07,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:49:07,845 INFO L87 Difference]: Start difference. First operand 4196 states and 6725 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:08,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:08,411 INFO L93 Difference]: Finished difference Result 8307 states and 13682 transitions. [2023-04-02 02:49:08,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:49:08,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 185 [2023-04-02 02:49:08,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:08,431 INFO L225 Difference]: With dead ends: 8307 [2023-04-02 02:49:08,431 INFO L226 Difference]: Without dead ends: 4260 [2023-04-02 02:49:08,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:08,447 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 999 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:08,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 2695 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:49:08,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4260 states. [2023-04-02 02:49:08,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4260 to 4260. [2023-04-02 02:49:08,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4260 states, 3259 states have (on average 1.6225836146057073) internal successors, (5288), 3317 states have internal predecessors, (5288), 697 states have call successors, (697), 292 states have call predecessors, (697), 303 states have return successors, (844), 678 states have call predecessors, (844), 684 states have call successors, (844) [2023-04-02 02:49:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4260 states to 4260 states and 6829 transitions. [2023-04-02 02:49:08,567 INFO L78 Accepts]: Start accepts. Automaton has 4260 states and 6829 transitions. Word has length 185 [2023-04-02 02:49:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:08,567 INFO L495 AbstractCegarLoop]: Abstraction has 4260 states and 6829 transitions. [2023-04-02 02:49:08,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:08,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4260 states and 6829 transitions. [2023-04-02 02:49:08,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-04-02 02:49:08,572 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:08,572 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:08,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:08,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 02:49:08,780 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:08,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:08,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1130522943, now seen corresponding path program 1 times [2023-04-02 02:49:08,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:08,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405841757] [2023-04-02 02:49:08,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:08,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:08,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:08,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:09,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:09,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:49:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:49:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:49:09,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:49:09,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:49:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 02:49:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 02:49:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:49:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405841757] [2023-04-02 02:49:09,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405841757] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:09,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197663408] [2023-04-02 02:49:09,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:09,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:09,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:09,269 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:09,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 02:49:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:09,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 2942 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:49:09,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:49:09,796 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:09,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197663408] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:09,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:09,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:49:09,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615511696] [2023-04-02 02:49:09,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:09,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:49:09,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:09,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:49:09,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:49:09,797 INFO L87 Difference]: Start difference. First operand 4260 states and 6829 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:10,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:10,322 INFO L93 Difference]: Finished difference Result 8435 states and 13866 transitions. [2023-04-02 02:49:10,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:49:10,322 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 187 [2023-04-02 02:49:10,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:10,343 INFO L225 Difference]: With dead ends: 8435 [2023-04-02 02:49:10,344 INFO L226 Difference]: Without dead ends: 4324 [2023-04-02 02:49:10,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:10,358 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 1002 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 582 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:10,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 2694 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 582 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:49:10,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4324 states. [2023-04-02 02:49:10,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4324 to 4324. [2023-04-02 02:49:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4324 states, 3315 states have (on average 1.624132730015083) internal successors, (5384), 3373 states have internal predecessors, (5384), 697 states have call successors, (697), 300 states have call predecessors, (697), 311 states have return successors, (852), 678 states have call predecessors, (852), 684 states have call successors, (852) [2023-04-02 02:49:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4324 states to 4324 states and 6933 transitions. [2023-04-02 02:49:10,475 INFO L78 Accepts]: Start accepts. Automaton has 4324 states and 6933 transitions. Word has length 187 [2023-04-02 02:49:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 4324 states and 6933 transitions. [2023-04-02 02:49:10,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:10,475 INFO L276 IsEmpty]: Start isEmpty. Operand 4324 states and 6933 transitions. [2023-04-02 02:49:10,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-04-02 02:49:10,480 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:10,480 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:10,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:10,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-04-02 02:49:10,688 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:10,689 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:10,689 INFO L85 PathProgramCache]: Analyzing trace with hash -155747113, now seen corresponding path program 1 times [2023-04-02 02:49:10,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:10,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793561164] [2023-04-02 02:49:10,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:10,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:10,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:10,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:10,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:10,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:11,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:11,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:11,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:11,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:49:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:49:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:49:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:49:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 02:49:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 02:49:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:49:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,218 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:49:11,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793561164] [2023-04-02 02:49:11,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793561164] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:11,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909180490] [2023-04-02 02:49:11,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:11,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:11,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:11,220 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:11,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 02:49:11,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:11,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:49:11,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:11,746 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:49:11,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:11,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909180490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:11,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:11,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:49:11,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079108435] [2023-04-02 02:49:11,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:11,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:49:11,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:11,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:49:11,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:49:11,748 INFO L87 Difference]: Start difference. First operand 4324 states and 6933 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:12,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:12,260 INFO L93 Difference]: Finished difference Result 8563 states and 14050 transitions. [2023-04-02 02:49:12,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:49:12,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 189 [2023-04-02 02:49:12,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:12,278 INFO L225 Difference]: With dead ends: 8563 [2023-04-02 02:49:12,278 INFO L226 Difference]: Without dead ends: 4388 [2023-04-02 02:49:12,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:12,291 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 995 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:12,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 2694 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:49:12,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2023-04-02 02:49:12,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 4388. [2023-04-02 02:49:12,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4388 states, 3371 states have (on average 1.6256303767428062) internal successors, (5480), 3429 states have internal predecessors, (5480), 697 states have call successors, (697), 308 states have call predecessors, (697), 319 states have return successors, (860), 678 states have call predecessors, (860), 684 states have call successors, (860) [2023-04-02 02:49:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4388 states to 4388 states and 7037 transitions. [2023-04-02 02:49:12,407 INFO L78 Accepts]: Start accepts. Automaton has 4388 states and 7037 transitions. Word has length 189 [2023-04-02 02:49:12,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:12,408 INFO L495 AbstractCegarLoop]: Abstraction has 4388 states and 7037 transitions. [2023-04-02 02:49:12,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:12,408 INFO L276 IsEmpty]: Start isEmpty. Operand 4388 states and 7037 transitions. [2023-04-02 02:49:12,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-04-02 02:49:12,453 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:12,453 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:12,463 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-04-02 02:49:12,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-02 02:49:12,654 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:12,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:12,654 INFO L85 PathProgramCache]: Analyzing trace with hash 989651001, now seen corresponding path program 1 times [2023-04-02 02:49:12,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:12,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880452203] [2023-04-02 02:49:12,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:12,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:12,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:12,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:12,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:12,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:49:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 02:49:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:13,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:49:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:49:13,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 02:49:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:49:13,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:13,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880452203] [2023-04-02 02:49:13,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880452203] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:13,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115482598] [2023-04-02 02:49:13,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:13,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:13,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:13,163 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:13,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 02:49:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:13,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 2946 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:49:13,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:49:13,644 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:13,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115482598] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:13,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:13,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:49:13,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263323296] [2023-04-02 02:49:13,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:13,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:49:13,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:13,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:49:13,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:49:13,645 INFO L87 Difference]: Start difference. First operand 4388 states and 7037 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:14,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:14,179 INFO L93 Difference]: Finished difference Result 8691 states and 14234 transitions. [2023-04-02 02:49:14,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:49:14,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 191 [2023-04-02 02:49:14,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:14,196 INFO L225 Difference]: With dead ends: 8691 [2023-04-02 02:49:14,196 INFO L226 Difference]: Without dead ends: 4452 [2023-04-02 02:49:14,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:14,208 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 996 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:14,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2694 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:49:14,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4452 states. [2023-04-02 02:49:14,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4452 to 4452. [2023-04-02 02:49:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4452 states, 3427 states have (on average 1.6270790779107092) internal successors, (5576), 3485 states have internal predecessors, (5576), 697 states have call successors, (697), 316 states have call predecessors, (697), 327 states have return successors, (868), 678 states have call predecessors, (868), 684 states have call successors, (868) [2023-04-02 02:49:14,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4452 states to 4452 states and 7141 transitions. [2023-04-02 02:49:14,359 INFO L78 Accepts]: Start accepts. Automaton has 4452 states and 7141 transitions. Word has length 191 [2023-04-02 02:49:14,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:14,359 INFO L495 AbstractCegarLoop]: Abstraction has 4452 states and 7141 transitions. [2023-04-02 02:49:14,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2023-04-02 02:49:14,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4452 states and 7141 transitions. [2023-04-02 02:49:14,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-02 02:49:14,364 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:14,364 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:14,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:14,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 02:49:14,573 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:14,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 215534935, now seen corresponding path program 1 times [2023-04-02 02:49:14,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:14,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852474210] [2023-04-02 02:49:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:14,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:14,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:14,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:49:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:14,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:14,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:14,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:15,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:15,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:15,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:15,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:15,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:49:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:49:15,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852474210] [2023-04-02 02:49:15,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852474210] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576198099] [2023-04-02 02:49:15,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:15,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:15,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:15,046 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:15,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 02:49:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:15,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 2948 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:49:15,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:49:15,424 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:15,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576198099] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:15,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:15,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2023-04-02 02:49:15,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51393397] [2023-04-02 02:49:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:15,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:49:15,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:15,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:49:15,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:49:15,426 INFO L87 Difference]: Start difference. First operand 4452 states and 7141 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:49:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:15,541 INFO L93 Difference]: Finished difference Result 8863 states and 14252 transitions. [2023-04-02 02:49:15,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:49:15,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 193 [2023-04-02 02:49:15,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:15,567 INFO L225 Difference]: With dead ends: 8863 [2023-04-02 02:49:15,567 INFO L226 Difference]: Without dead ends: 4429 [2023-04-02 02:49:15,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:15,579 INFO L413 NwaCegarLoop]: 1083 mSDtfsCounter, 13 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3240 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:15,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3240 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:49:15,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4429 states. [2023-04-02 02:49:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4429 to 4429. [2023-04-02 02:49:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4429 states, 3408 states have (on average 1.6232394366197183) internal successors, (5532), 3464 states have internal predecessors, (5532), 695 states have call successors, (695), 316 states have call predecessors, (695), 325 states have return successors, (864), 676 states have call predecessors, (864), 682 states have call successors, (864) [2023-04-02 02:49:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4429 states to 4429 states and 7091 transitions. [2023-04-02 02:49:15,740 INFO L78 Accepts]: Start accepts. Automaton has 4429 states and 7091 transitions. Word has length 193 [2023-04-02 02:49:15,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:15,740 INFO L495 AbstractCegarLoop]: Abstraction has 4429 states and 7091 transitions. [2023-04-02 02:49:15,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:49:15,740 INFO L276 IsEmpty]: Start isEmpty. Operand 4429 states and 7091 transitions. [2023-04-02 02:49:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-04-02 02:49:15,745 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:15,745 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:15,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:15,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:15,955 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:15,955 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:15,955 INFO L85 PathProgramCache]: Analyzing trace with hash -890714190, now seen corresponding path program 1 times [2023-04-02 02:49:15,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:15,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785230713] [2023-04-02 02:49:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:15,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:16,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:16,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:49:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:16,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:49:16,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:49:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 02:49:16,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 02:49:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,558 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:16,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:16,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785230713] [2023-04-02 02:49:16,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785230713] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:16,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721224128] [2023-04-02 02:49:16,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:16,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:16,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:16,560 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:16,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 02:49:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 2947 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:49:16,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:17,002 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:49:17,003 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:17,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721224128] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:17,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:17,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 16 [2023-04-02 02:49:17,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616604171] [2023-04-02 02:49:17,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:17,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:49:17,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:17,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:49:17,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:49:17,004 INFO L87 Difference]: Start difference. First operand 4429 states and 7091 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:49:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:17,152 INFO L93 Difference]: Finished difference Result 8847 states and 14159 transitions. [2023-04-02 02:49:17,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:49:17,153 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 191 [2023-04-02 02:49:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:17,168 INFO L225 Difference]: With dead ends: 8847 [2023-04-02 02:49:17,169 INFO L226 Difference]: Without dead ends: 4466 [2023-04-02 02:49:17,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:49:17,219 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 105 mSDsluCounter, 5281 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6362 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:17,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6362 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4466 states. [2023-04-02 02:49:17,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4466 to 4423. [2023-04-02 02:49:17,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4423 states, 3402 states have (on average 1.6219870664315108) internal successors, (5518), 3458 states have internal predecessors, (5518), 695 states have call successors, (695), 316 states have call predecessors, (695), 325 states have return successors, (864), 676 states have call predecessors, (864), 682 states have call successors, (864) [2023-04-02 02:49:17,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4423 states to 4423 states and 7077 transitions. [2023-04-02 02:49:17,361 INFO L78 Accepts]: Start accepts. Automaton has 4423 states and 7077 transitions. Word has length 191 [2023-04-02 02:49:17,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:17,361 INFO L495 AbstractCegarLoop]: Abstraction has 4423 states and 7077 transitions. [2023-04-02 02:49:17,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:49:17,361 INFO L276 IsEmpty]: Start isEmpty. Operand 4423 states and 7077 transitions. [2023-04-02 02:49:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2023-04-02 02:49:17,367 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:17,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:17,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:17,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:17,577 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:17,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:17,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1835285068, now seen corresponding path program 1 times [2023-04-02 02:49:17,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:17,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300984407] [2023-04-02 02:49:17,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:17,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:17,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:17,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:17,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:49:17,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:17,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:49:17,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:17,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:49:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 02:49:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:18,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 02:49:18,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:18,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:18,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300984407] [2023-04-02 02:49:18,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300984407] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:18,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402212082] [2023-04-02 02:49:18,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:18,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:18,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:18,137 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:18,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-04-02 02:49:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:18,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 2943 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:49:18,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:18,558 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:49:18,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:18,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402212082] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:18,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:18,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:49:18,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939553322] [2023-04-02 02:49:18,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:18,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:49:18,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:18,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:49:18,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:49:18,560 INFO L87 Difference]: Start difference. First operand 4423 states and 7077 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (35), 2 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 02:49:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:18,744 INFO L93 Difference]: Finished difference Result 8858 states and 14172 transitions. [2023-04-02 02:49:18,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:49:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (35), 2 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 191 [2023-04-02 02:49:18,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:18,759 INFO L225 Difference]: With dead ends: 8858 [2023-04-02 02:49:18,760 INFO L226 Difference]: Without dead ends: 4484 [2023-04-02 02:49:18,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:49:18,771 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 92 mSDsluCounter, 7385 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 8456 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:18,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 8456 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:18,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2023-04-02 02:49:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4425. [2023-04-02 02:49:18,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 3403 states have (on average 1.62180429033206) internal successors, (5519), 3460 states have internal predecessors, (5519), 695 states have call successors, (695), 316 states have call predecessors, (695), 326 states have return successors, (867), 676 states have call predecessors, (867), 682 states have call successors, (867) [2023-04-02 02:49:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7081 transitions. [2023-04-02 02:49:18,913 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 7081 transitions. Word has length 191 [2023-04-02 02:49:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:18,913 INFO L495 AbstractCegarLoop]: Abstraction has 4425 states and 7081 transitions. [2023-04-02 02:49:18,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (35), 2 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 02:49:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 7081 transitions. [2023-04-02 02:49:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:49:18,918 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:18,918 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:18,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:19,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:19,126 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:19,126 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:19,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2089157030, now seen corresponding path program 1 times [2023-04-02 02:49:19,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:19,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190175461] [2023-04-02 02:49:19,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:19,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:19,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:49:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:49:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:49:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:49:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:19,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:49:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:49:19,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:49:19,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:19,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190175461] [2023-04-02 02:49:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190175461] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:19,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467359122] [2023-04-02 02:49:19,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:19,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:19,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:19,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:19,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-04-02 02:49:20,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 2944 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:49:20,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:20,089 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:49:20,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:20,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467359122] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:20,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:20,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:49:20,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971039216] [2023-04-02 02:49:20,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:20,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:49:20,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:20,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:49:20,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:49:20,092 INFO L87 Difference]: Start difference. First operand 4425 states and 7081 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (35), 2 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 02:49:20,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:20,280 INFO L93 Difference]: Finished difference Result 8859 states and 14176 transitions. [2023-04-02 02:49:20,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:49:20,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (35), 2 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 192 [2023-04-02 02:49:20,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:20,297 INFO L225 Difference]: With dead ends: 8859 [2023-04-02 02:49:20,297 INFO L226 Difference]: Without dead ends: 4483 [2023-04-02 02:49:20,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:49:20,308 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 103 mSDsluCounter, 7373 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 8444 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:20,308 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 8444 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4483 states. [2023-04-02 02:49:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4483 to 4425. [2023-04-02 02:49:20,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 3403 states have (on average 1.62180429033206) internal successors, (5519), 3460 states have internal predecessors, (5519), 695 states have call successors, (695), 316 states have call predecessors, (695), 326 states have return successors, (867), 676 states have call predecessors, (867), 682 states have call successors, (867) [2023-04-02 02:49:20,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7081 transitions. [2023-04-02 02:49:20,459 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 7081 transitions. Word has length 192 [2023-04-02 02:49:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:20,459 INFO L495 AbstractCegarLoop]: Abstraction has 4425 states and 7081 transitions. [2023-04-02 02:49:20,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (35), 2 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 02:49:20,460 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 7081 transitions. [2023-04-02 02:49:20,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-02 02:49:20,464 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:20,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:20,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:20,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:20,673 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:20,673 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:20,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1529688177, now seen corresponding path program 1 times [2023-04-02 02:49:20,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:20,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321166401] [2023-04-02 02:49:20,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:20,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:20,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:49:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:21,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:21,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:49:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,251 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:21,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321166401] [2023-04-02 02:49:21,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321166401] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:21,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848748850] [2023-04-02 02:49:21,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:21,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:21,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:21,252 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:21,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-04-02 02:49:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:21,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 2945 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:49:21,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:21,712 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:49:21,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:21,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848748850] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:21,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:21,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:49:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113992741] [2023-04-02 02:49:21,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:21,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:49:21,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:21,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:49:21,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:49:21,714 INFO L87 Difference]: Start difference. First operand 4425 states and 7081 transitions. Second operand has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (35), 2 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 02:49:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:21,902 INFO L93 Difference]: Finished difference Result 8860 states and 14180 transitions. [2023-04-02 02:49:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:49:21,902 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (35), 2 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 193 [2023-04-02 02:49:21,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:21,921 INFO L225 Difference]: With dead ends: 8860 [2023-04-02 02:49:21,921 INFO L226 Difference]: Without dead ends: 4484 [2023-04-02 02:49:21,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:49:21,932 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 114 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8432 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:21,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8432 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:49:21,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4484 states. [2023-04-02 02:49:22,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4484 to 4425. [2023-04-02 02:49:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4425 states, 3403 states have (on average 1.62180429033206) internal successors, (5519), 3460 states have internal predecessors, (5519), 695 states have call successors, (695), 316 states have call predecessors, (695), 326 states have return successors, (867), 676 states have call predecessors, (867), 682 states have call successors, (867) [2023-04-02 02:49:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4425 states to 4425 states and 7081 transitions. [2023-04-02 02:49:22,088 INFO L78 Accepts]: Start accepts. Automaton has 4425 states and 7081 transitions. Word has length 193 [2023-04-02 02:49:22,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:22,088 INFO L495 AbstractCegarLoop]: Abstraction has 4425 states and 7081 transitions. [2023-04-02 02:49:22,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 4 states have call successors, (35), 2 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 02:49:22,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4425 states and 7081 transitions. [2023-04-02 02:49:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-04-02 02:49:22,093 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:22,093 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:22,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:22,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:22,301 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:22,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1526457835, now seen corresponding path program 1 times [2023-04-02 02:49:22,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:22,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844854316] [2023-04-02 02:49:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:22,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:22,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:49:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:22,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:49:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:49:22,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:49:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:22,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:22,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:49:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 02:49:22,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 02:49:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:22,878 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:22,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:22,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844854316] [2023-04-02 02:49:22,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844854316] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:22,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077661747] [2023-04-02 02:49:22,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:22,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:22,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:22,879 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:22,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-04-02 02:49:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 2946 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 02:49:23,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:49:23,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:23,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077661747] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:23,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:23,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 16 [2023-04-02 02:49:23,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654432378] [2023-04-02 02:49:23,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:23,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:49:23,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:23,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:49:23,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:49:23,326 INFO L87 Difference]: Start difference. First operand 4425 states and 7081 transitions. Second operand has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:49:23,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:23,477 INFO L93 Difference]: Finished difference Result 8829 states and 14138 transitions. [2023-04-02 02:49:23,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:49:23,478 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 194 [2023-04-02 02:49:23,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:23,494 INFO L225 Difference]: With dead ends: 8829 [2023-04-02 02:49:23,494 INFO L226 Difference]: Without dead ends: 4445 [2023-04-02 02:49:23,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:49:23,505 INFO L413 NwaCegarLoop]: 1085 mSDtfsCounter, 118 mSDsluCounter, 5280 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6365 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:23,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6365 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:49:23,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4445 states. [2023-04-02 02:49:23,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4445 to 4418. [2023-04-02 02:49:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4418 states, 3396 states have (on average 1.6204358068315665) internal successors, (5503), 3453 states have internal predecessors, (5503), 695 states have call successors, (695), 316 states have call predecessors, (695), 326 states have return successors, (867), 676 states have call predecessors, (867), 682 states have call successors, (867) [2023-04-02 02:49:23,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 7065 transitions. [2023-04-02 02:49:23,669 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 7065 transitions. Word has length 194 [2023-04-02 02:49:23,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:23,670 INFO L495 AbstractCegarLoop]: Abstraction has 4418 states and 7065 transitions. [2023-04-02 02:49:23,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 4 states have call successors, (35), 2 states have call predecessors, (35), 4 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2023-04-02 02:49:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 7065 transitions. [2023-04-02 02:49:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-04-02 02:49:23,677 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:23,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:23,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:23,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:23,885 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:23,886 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:23,886 INFO L85 PathProgramCache]: Analyzing trace with hash -983666823, now seen corresponding path program 1 times [2023-04-02 02:49:23,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:23,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126581751] [2023-04-02 02:49:23,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:23,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:23,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:24,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:49:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:49:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:49:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:24,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:49:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:49:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-02 02:49:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:24,382 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:49:24,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:24,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126581751] [2023-04-02 02:49:24,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126581751] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:24,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:24,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:49:24,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798941129] [2023-04-02 02:49:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:24,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:49:24,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:49:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:49:24,383 INFO L87 Difference]: Start difference. First operand 4418 states and 7065 transitions. Second operand has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 02:49:31,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:31,464 INFO L93 Difference]: Finished difference Result 9776 states and 16196 transitions. [2023-04-02 02:49:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:49:31,464 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 195 [2023-04-02 02:49:31,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:31,479 INFO L225 Difference]: With dead ends: 9776 [2023-04-02 02:49:31,479 INFO L226 Difference]: Without dead ends: 5395 [2023-04-02 02:49:31,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:49:31,487 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 2120 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 4858 mSolverCounterSat, 766 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 5624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 766 IncrementalHoareTripleChecker+Valid, 4858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:31,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 365 Invalid, 5624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [766 Valid, 4858 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 02:49:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2023-04-02 02:49:32,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 4468. [2023-04-02 02:49:32,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4468 states, 3414 states have (on average 1.6162858816637375) internal successors, (5518), 3471 states have internal predecessors, (5518), 713 states have call successors, (713), 316 states have call predecessors, (713), 340 states have return successors, (923), 702 states have call predecessors, (923), 700 states have call successors, (923) [2023-04-02 02:49:32,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4468 states to 4468 states and 7154 transitions. [2023-04-02 02:49:32,293 INFO L78 Accepts]: Start accepts. Automaton has 4468 states and 7154 transitions. Word has length 195 [2023-04-02 02:49:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:32,294 INFO L495 AbstractCegarLoop]: Abstraction has 4468 states and 7154 transitions. [2023-04-02 02:49:32,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.88888888888889) internal successors, (107), 4 states have internal predecessors, (107), 3 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2023-04-02 02:49:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4468 states and 7154 transitions. [2023-04-02 02:49:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-02 02:49:32,298 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:32,298 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:49:32,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 02:49:32,298 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:32,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:32,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1352339104, now seen corresponding path program 1 times [2023-04-02 02:49:32,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:32,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423141945] [2023-04-02 02:49:32,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:32,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:49:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:32,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:49:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:32,887 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:32,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:32,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423141945] [2023-04-02 02:49:32,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423141945] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:32,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:32,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:49:32,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002072941] [2023-04-02 02:49:32,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:32,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:49:32,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:32,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:49:32,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:32,889 INFO L87 Difference]: Start difference. First operand 4468 states and 7154 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:49:42,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:42,083 INFO L93 Difference]: Finished difference Result 9858 states and 16380 transitions. [2023-04-02 02:49:42,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 02:49:42,084 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 193 [2023-04-02 02:49:42,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:42,102 INFO L225 Difference]: With dead ends: 9858 [2023-04-02 02:49:42,102 INFO L226 Difference]: Without dead ends: 5475 [2023-04-02 02:49:42,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-04-02 02:49:42,109 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 1418 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 10151 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 10654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 10151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:42,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 720 Invalid, 10654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [503 Valid, 10151 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-04-02 02:49:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2023-04-02 02:49:42,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 4492. [2023-04-02 02:49:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3422 states have (on average 1.614845119812975) internal successors, (5526), 3495 states have internal predecessors, (5526), 721 states have call successors, (721), 316 states have call predecessors, (721), 348 states have return successors, (940), 702 states have call predecessors, (940), 708 states have call successors, (940) [2023-04-02 02:49:42,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 7187 transitions. [2023-04-02 02:49:42,967 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 7187 transitions. Word has length 193 [2023-04-02 02:49:42,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:42,967 INFO L495 AbstractCegarLoop]: Abstraction has 4492 states and 7187 transitions. [2023-04-02 02:49:42,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:49:42,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 7187 transitions. [2023-04-02 02:49:42,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2023-04-02 02:49:42,971 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:42,971 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:42,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 02:49:42,972 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:42,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash -199622906, now seen corresponding path program 1 times [2023-04-02 02:49:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:42,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263830739] [2023-04-02 02:49:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:42,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:49:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:49:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:49:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:43,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:49:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 02:49:43,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 02:49:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:49:43,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:43,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263830739] [2023-04-02 02:49:43,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263830739] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:43,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:43,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:49:43,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444868174] [2023-04-02 02:49:43,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:43,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:49:43,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:49:43,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:43,546 INFO L87 Difference]: Start difference. First operand 4492 states and 7187 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:49:53,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:53,172 INFO L93 Difference]: Finished difference Result 9914 states and 16503 transitions. [2023-04-02 02:49:53,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 02:49:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 194 [2023-04-02 02:49:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:53,189 INFO L225 Difference]: With dead ends: 9914 [2023-04-02 02:49:53,189 INFO L226 Difference]: Without dead ends: 5507 [2023-04-02 02:49:53,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-04-02 02:49:53,197 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 2037 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 10347 mSolverCounterSat, 731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2117 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 11078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 731 IncrementalHoareTripleChecker+Valid, 10347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:53,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2117 Valid, 721 Invalid, 11078 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [731 Valid, 10347 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-04-02 02:49:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5507 states. [2023-04-02 02:49:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5507 to 4516. [2023-04-02 02:49:54,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 3430 states have (on average 1.6134110787172011) internal successors, (5534), 3519 states have internal predecessors, (5534), 729 states have call successors, (729), 316 states have call predecessors, (729), 356 states have return successors, (957), 702 states have call predecessors, (957), 716 states have call successors, (957) [2023-04-02 02:49:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 7220 transitions. [2023-04-02 02:49:54,065 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 7220 transitions. Word has length 194 [2023-04-02 02:49:54,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:54,065 INFO L495 AbstractCegarLoop]: Abstraction has 4516 states and 7220 transitions. [2023-04-02 02:49:54,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:49:54,065 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 7220 transitions. [2023-04-02 02:49:54,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-04-02 02:49:54,069 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:54,069 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:54,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-04-02 02:49:54,070 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:54,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:54,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1803697733, now seen corresponding path program 1 times [2023-04-02 02:49:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606290016] [2023-04-02 02:49:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:54,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:49:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:49:54,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:49:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:49:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:54,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:49:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:49:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:49:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-02 02:49:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,651 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:49:54,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:54,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606290016] [2023-04-02 02:49:54,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606290016] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:54,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:54,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:49:54,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666041740] [2023-04-02 02:49:54,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:54,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:49:54,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:54,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:49:54,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:54,653 INFO L87 Difference]: Start difference. First operand 4516 states and 7220 transitions. Second operand has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:50:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:03,459 INFO L93 Difference]: Finished difference Result 9976 states and 16629 transitions. [2023-04-02 02:50:03,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 02:50:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) Word has length 195 [2023-04-02 02:50:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:03,478 INFO L225 Difference]: With dead ends: 9976 [2023-04-02 02:50:03,478 INFO L226 Difference]: Without dead ends: 5545 [2023-04-02 02:50:03,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-04-02 02:50:03,486 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 3380 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 9714 mSolverCounterSat, 1255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3462 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 10969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1255 IncrementalHoareTripleChecker+Valid, 9714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:03,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3462 Valid, 728 Invalid, 10969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1255 Valid, 9714 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 02:50:03,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5545 states. [2023-04-02 02:50:04,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5545 to 4539. [2023-04-02 02:50:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4539 states, 3437 states have (on average 1.6121617689845795) internal successors, (5541), 3542 states have internal predecessors, (5541), 738 states have call successors, (738), 316 states have call predecessors, (738), 363 states have return successors, (971), 702 states have call predecessors, (971), 725 states have call successors, (971) [2023-04-02 02:50:04,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4539 states to 4539 states and 7250 transitions. [2023-04-02 02:50:04,381 INFO L78 Accepts]: Start accepts. Automaton has 4539 states and 7250 transitions. Word has length 195 [2023-04-02 02:50:04,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:04,381 INFO L495 AbstractCegarLoop]: Abstraction has 4539 states and 7250 transitions. [2023-04-02 02:50:04,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.833333333333334) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (35), 8 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:50:04,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4539 states and 7250 transitions. [2023-04-02 02:50:04,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-02 02:50:04,385 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:04,385 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:04,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-04-02 02:50:04,386 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:04,386 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:04,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1014361639, now seen corresponding path program 1 times [2023-04-02 02:50:04,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:04,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709984745] [2023-04-02 02:50:04,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:04,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:04,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:04,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:04,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:05,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:05,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 02:50:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 02:50:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 02:50:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,560 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:05,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:05,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709984745] [2023-04-02 02:50:05,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709984745] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:05,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310906115] [2023-04-02 02:50:05,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:05,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:05,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:05,562 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:05,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-04-02 02:50:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:05,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 2953 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-02 02:50:05,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:06,159 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:50:06,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:06,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310906115] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:06,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:06,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 23 [2023-04-02 02:50:06,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912858882] [2023-04-02 02:50:06,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:06,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:50:06,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:06,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:50:06,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=432, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:50:06,165 INFO L87 Difference]: Start difference. First operand 4539 states and 7250 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 6 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 02:50:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:08,764 INFO L93 Difference]: Finished difference Result 8670 states and 13897 transitions. [2023-04-02 02:50:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:50:08,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 6 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 196 [2023-04-02 02:50:08,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:08,776 INFO L225 Difference]: With dead ends: 8670 [2023-04-02 02:50:08,776 INFO L226 Difference]: Without dead ends: 4228 [2023-04-02 02:50:08,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:50:08,783 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 1827 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 3646 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 4074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 3646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:08,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 455 Invalid, 4074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 3646 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 02:50:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4228 states. [2023-04-02 02:50:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4228 to 4122. [2023-04-02 02:50:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4122 states, 3083 states have (on average 1.599416153097632) internal successors, (4931), 3202 states have internal predecessors, (4931), 703 states have call successors, (703), 290 states have call predecessors, (703), 335 states have return successors, (897), 663 states have call predecessors, (897), 690 states have call successors, (897) [2023-04-02 02:50:09,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4122 states to 4122 states and 6531 transitions. [2023-04-02 02:50:09,542 INFO L78 Accepts]: Start accepts. Automaton has 4122 states and 6531 transitions. Word has length 196 [2023-04-02 02:50:09,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:09,543 INFO L495 AbstractCegarLoop]: Abstraction has 4122 states and 6531 transitions. [2023-04-02 02:50:09,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 6 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) [2023-04-02 02:50:09,543 INFO L276 IsEmpty]: Start isEmpty. Operand 4122 states and 6531 transitions. [2023-04-02 02:50:09,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-02 02:50:09,546 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:09,546 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:09,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2023-04-02 02:50:09,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-04-02 02:50:09,754 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:09,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:09,755 INFO L85 PathProgramCache]: Analyzing trace with hash 201792087, now seen corresponding path program 1 times [2023-04-02 02:50:09,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:09,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795111830] [2023-04-02 02:50:09,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:09,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:09,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:10,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:10,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:10,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 02:50:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 02:50:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 02:50:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,821 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:10,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:10,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795111830] [2023-04-02 02:50:10,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795111830] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:10,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666896489] [2023-04-02 02:50:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:10,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:10,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:10,823 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:10,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-04-02 02:50:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 2956 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-02 02:50:11,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:11,451 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:50:11,451 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:11,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666896489] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:11,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:11,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:50:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549289761] [2023-04-02 02:50:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:11,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:50:11,452 INFO L87 Difference]: Start difference. First operand 4122 states and 6531 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:50:16,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:16,587 INFO L93 Difference]: Finished difference Result 10196 states and 16381 transitions. [2023-04-02 02:50:16,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:50:16,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) Word has length 196 [2023-04-02 02:50:16,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:16,606 INFO L225 Difference]: With dead ends: 10196 [2023-04-02 02:50:16,606 INFO L226 Difference]: Without dead ends: 6168 [2023-04-02 02:50:16,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=148, Invalid=1184, Unknown=0, NotChecked=0, Total=1332 [2023-04-02 02:50:16,615 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 3186 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 8965 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 9758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 8965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:16,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 1025 Invalid, 9758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [793 Valid, 8965 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 02:50:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2023-04-02 02:50:17,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 5999. [2023-04-02 02:50:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5999 states, 4453 states have (on average 1.5849988771614643) internal successors, (7058), 4624 states have internal predecessors, (7058), 1044 states have call successors, (1044), 414 states have call predecessors, (1044), 501 states have return successors, (1449), 1011 states have call predecessors, (1449), 1031 states have call successors, (1449) [2023-04-02 02:50:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5999 states to 5999 states and 9551 transitions. [2023-04-02 02:50:17,755 INFO L78 Accepts]: Start accepts. Automaton has 5999 states and 9551 transitions. Word has length 196 [2023-04-02 02:50:17,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:17,756 INFO L495 AbstractCegarLoop]: Abstraction has 5999 states and 9551 transitions. [2023-04-02 02:50:17,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 4 states have call successors, (34), 4 states have call predecessors, (34), 5 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:50:17,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5999 states and 9551 transitions. [2023-04-02 02:50:17,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-02 02:50:17,759 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:17,759 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:50:17,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:17,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:17,969 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:17,969 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:17,969 INFO L85 PathProgramCache]: Analyzing trace with hash 363734806, now seen corresponding path program 1 times [2023-04-02 02:50:17,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:17,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110641213] [2023-04-02 02:50:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:17,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:18,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:18,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:18,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:50:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:50:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-02 02:50:18,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:18,990 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:18,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110641213] [2023-04-02 02:50:18,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110641213] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:18,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956939139] [2023-04-02 02:50:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:18,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:18,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:18,992 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:18,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-04-02 02:50:19,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:19,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 02:50:19,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:19,459 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:50:19,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:19,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956939139] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:19,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:19,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [19] total 23 [2023-04-02 02:50:19,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735064600] [2023-04-02 02:50:19,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:19,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:50:19,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:19,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:50:19,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:50:19,461 INFO L87 Difference]: Start difference. First operand 5999 states and 9551 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:50:21,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:21,341 INFO L93 Difference]: Finished difference Result 13977 states and 22485 transitions. [2023-04-02 02:50:21,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:50:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2023-04-02 02:50:21,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:21,363 INFO L225 Difference]: With dead ends: 13977 [2023-04-02 02:50:21,363 INFO L226 Difference]: Without dead ends: 8076 [2023-04-02 02:50:21,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 257 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:50:21,373 INFO L413 NwaCegarLoop]: 2028 mSDtfsCounter, 1014 mSDsluCounter, 6920 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 8948 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:21,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1017 Valid, 8948 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:50:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8076 states. [2023-04-02 02:50:22,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8076 to 8045. [2023-04-02 02:50:22,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8045 states, 5985 states have (on average 1.5854636591478697) internal successors, (9489), 6208 states have internal predecessors, (9489), 1390 states have call successors, (1390), 550 states have call predecessors, (1390), 669 states have return successors, (2015), 1354 states have call predecessors, (2015), 1373 states have call successors, (2015) [2023-04-02 02:50:22,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8045 states to 8045 states and 12894 transitions. [2023-04-02 02:50:22,943 INFO L78 Accepts]: Start accepts. Automaton has 8045 states and 12894 transitions. Word has length 201 [2023-04-02 02:50:22,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:22,944 INFO L495 AbstractCegarLoop]: Abstraction has 8045 states and 12894 transitions. [2023-04-02 02:50:22,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:50:22,944 INFO L276 IsEmpty]: Start isEmpty. Operand 8045 states and 12894 transitions. [2023-04-02 02:50:22,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-02 02:50:22,947 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:22,947 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:50:22,955 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2023-04-02 02:50:23,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:23,148 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:23,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:23,148 INFO L85 PathProgramCache]: Analyzing trace with hash 813373522, now seen corresponding path program 1 times [2023-04-02 02:50:23,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:23,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290387865] [2023-04-02 02:50:23,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:23,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:23,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:23,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:23,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:23,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:23,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:23,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:24,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:50:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:50:24,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-02 02:50:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,080 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:24,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:24,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290387865] [2023-04-02 02:50:24,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290387865] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:24,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382706877] [2023-04-02 02:50:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:24,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:24,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:24,081 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:24,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-04-02 02:50:24,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:24,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 2972 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:50:24,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:24,531 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:50:24,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:24,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382706877] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:24,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:24,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2023-04-02 02:50:24,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979281981] [2023-04-02 02:50:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:24,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:50:24,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:50:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:50:24,532 INFO L87 Difference]: Start difference. First operand 8045 states and 12894 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:50:26,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:26,152 INFO L93 Difference]: Finished difference Result 16094 states and 26253 transitions. [2023-04-02 02:50:26,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:50:26,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 201 [2023-04-02 02:50:26,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:26,175 INFO L225 Difference]: With dead ends: 16094 [2023-04-02 02:50:26,176 INFO L226 Difference]: Without dead ends: 8141 [2023-04-02 02:50:26,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:50:26,192 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 86 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3172 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:26,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3172 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:50:26,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8141 states. [2023-04-02 02:50:27,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8141 to 8141. [2023-04-02 02:50:27,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8141 states, 6065 states have (on average 1.5803792250618303) internal successors, (9585), 6288 states have internal predecessors, (9585), 1390 states have call successors, (1390), 566 states have call predecessors, (1390), 685 states have return successors, (2015), 1354 states have call predecessors, (2015), 1373 states have call successors, (2015) [2023-04-02 02:50:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8141 states to 8141 states and 12990 transitions. [2023-04-02 02:50:27,816 INFO L78 Accepts]: Start accepts. Automaton has 8141 states and 12990 transitions. Word has length 201 [2023-04-02 02:50:27,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:27,817 INFO L495 AbstractCegarLoop]: Abstraction has 8141 states and 12990 transitions. [2023-04-02 02:50:27,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:50:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 8141 states and 12990 transitions. [2023-04-02 02:50:27,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-04-02 02:50:27,819 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:27,820 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:50:27,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:28,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:28,021 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:28,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:28,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1896715845, now seen corresponding path program 1 times [2023-04-02 02:50:28,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:28,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589673420] [2023-04-02 02:50:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:28,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:28,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:28,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:28,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:28,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:50:29,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 02:50:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2023-04-02 02:50:29,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:29,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:29,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589673420] [2023-04-02 02:50:29,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589673420] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:29,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694823804] [2023-04-02 02:50:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:29,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:29,021 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:29,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-04-02 02:50:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:29,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 2977 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 02:50:29,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:50:29,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:29,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694823804] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:29,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:29,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:50:29,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709062725] [2023-04-02 02:50:29,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:29,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:29,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:29,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:29,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:50:29,613 INFO L87 Difference]: Start difference. First operand 8141 states and 12990 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:50:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:37,019 INFO L93 Difference]: Finished difference Result 26366 states and 43522 transitions. [2023-04-02 02:50:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:50:37,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 203 [2023-04-02 02:50:37,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:37,085 INFO L225 Difference]: With dead ends: 26366 [2023-04-02 02:50:37,085 INFO L226 Difference]: Without dead ends: 18315 [2023-04-02 02:50:37,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 260 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2023-04-02 02:50:37,113 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 3355 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 7419 mSolverCounterSat, 912 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3469 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 8331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 912 IncrementalHoareTripleChecker+Valid, 7419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:37,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3469 Valid, 674 Invalid, 8331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [912 Valid, 7419 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-02 02:50:37,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18315 states. [2023-04-02 02:50:40,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18315 to 18112. [2023-04-02 02:50:40,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18112 states, 13511 states have (on average 1.572570498112649) internal successors, (21247), 13998 states have internal predecessors, (21247), 3058 states have call successors, (3058), 1302 states have call predecessors, (3058), 1542 states have return successors, (4903), 2958 states have call predecessors, (4903), 3027 states have call successors, (4903) [2023-04-02 02:50:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18112 states to 18112 states and 29208 transitions. [2023-04-02 02:50:40,837 INFO L78 Accepts]: Start accepts. Automaton has 18112 states and 29208 transitions. Word has length 203 [2023-04-02 02:50:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:40,837 INFO L495 AbstractCegarLoop]: Abstraction has 18112 states and 29208 transitions. [2023-04-02 02:50:40,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:50:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 18112 states and 29208 transitions. [2023-04-02 02:50:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-02 02:50:40,840 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:40,840 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:50:40,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:41,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:41,048 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:41,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:41,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1241721505, now seen corresponding path program 1 times [2023-04-02 02:50:41,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:41,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078928877] [2023-04-02 02:50:41,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:41,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:41,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:41,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:41,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:41,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:41,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:41,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:41,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:41,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:42,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:42,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:50:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:50:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-04-02 02:50:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:42,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:42,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078928877] [2023-04-02 02:50:42,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078928877] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:42,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057578227] [2023-04-02 02:50:42,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:42,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:42,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:42,077 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:42,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-04-02 02:50:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:42,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:50:42,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:42,662 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:50:42,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:42,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057578227] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:42,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:42,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:50:42,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320803750] [2023-04-02 02:50:42,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:42,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:42,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:42,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:42,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=476, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:50:42,664 INFO L87 Difference]: Start difference. First operand 18112 states and 29208 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (35), 4 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 02:50:48,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:48,284 INFO L93 Difference]: Finished difference Result 42820 states and 70421 transitions. [2023-04-02 02:50:48,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 02:50:48,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (35), 4 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 204 [2023-04-02 02:50:48,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:48,378 INFO L225 Difference]: With dead ends: 42820 [2023-04-02 02:50:48,378 INFO L226 Difference]: Without dead ends: 24790 [2023-04-02 02:50:48,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 259 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=703, Unknown=0, NotChecked=0, Total=812 [2023-04-02 02:50:48,429 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 2960 mSDsluCounter, 4470 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2964 SdHoareTripleChecker+Valid, 6034 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:48,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2964 Valid, 6034 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 02:50:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24790 states. [2023-04-02 02:50:53,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24790 to 24687. [2023-04-02 02:50:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24687 states, 18755 states have (on average 1.5685417222074114) internal successors, (29418), 19379 states have internal predecessors, (29418), 3689 states have call successors, (3689), 1861 states have call predecessors, (3689), 2242 states have return successors, (7388), 3594 states have call predecessors, (7388), 3635 states have call successors, (7388) [2023-04-02 02:50:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24687 states to 24687 states and 40495 transitions. [2023-04-02 02:50:53,336 INFO L78 Accepts]: Start accepts. Automaton has 24687 states and 40495 transitions. Word has length 204 [2023-04-02 02:50:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:53,337 INFO L495 AbstractCegarLoop]: Abstraction has 24687 states and 40495 transitions. [2023-04-02 02:50:53,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 5 states have internal predecessors, (110), 4 states have call successors, (35), 4 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 02:50:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 24687 states and 40495 transitions. [2023-04-02 02:50:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-02 02:50:53,339 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:53,340 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:53,348 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:53,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2023-04-02 02:50:53,540 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:53,541 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:53,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1781909408, now seen corresponding path program 1 times [2023-04-02 02:50:53,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:53,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418859542] [2023-04-02 02:50:53,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:53,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:54,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:54,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:54,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:54,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:50:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:50:54,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:54,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:50:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-04-02 02:50:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 02:50:54,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,462 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:50:54,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:54,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418859542] [2023-04-02 02:50:54,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418859542] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:54,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315396351] [2023-04-02 02:50:54,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:54,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:54,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:54,464 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:54,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2023-04-02 02:50:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:54,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 2984 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 02:50:54,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:55,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:55,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315396351] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:55,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:55,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:50:55,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748577215] [2023-04-02 02:50:55,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:55,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:55,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:55,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:55,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:50:55,042 INFO L87 Difference]: Start difference. First operand 24687 states and 40495 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:51:03,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:03,974 INFO L93 Difference]: Finished difference Result 46620 states and 76349 transitions. [2023-04-02 02:51:03,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:03,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 207 [2023-04-02 02:51:03,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:04,056 INFO L225 Difference]: With dead ends: 46620 [2023-04-02 02:51:04,056 INFO L226 Difference]: Without dead ends: 24970 [2023-04-02 02:51:04,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 264 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2023-04-02 02:51:04,104 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 3110 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 7537 mSolverCounterSat, 836 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 8373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 836 IncrementalHoareTripleChecker+Valid, 7537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:04,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 732 Invalid, 8373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [836 Valid, 7537 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 02:51:04,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24970 states. [2023-04-02 02:51:08,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24970 to 24671. [2023-04-02 02:51:08,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24671 states, 18739 states have (on average 1.5673194941032071) internal successors, (29370), 19363 states have internal predecessors, (29370), 3689 states have call successors, (3689), 1861 states have call predecessors, (3689), 2242 states have return successors, (7388), 3594 states have call predecessors, (7388), 3635 states have call successors, (7388) [2023-04-02 02:51:09,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24671 states to 24671 states and 40447 transitions. [2023-04-02 02:51:09,036 INFO L78 Accepts]: Start accepts. Automaton has 24671 states and 40447 transitions. Word has length 207 [2023-04-02 02:51:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:09,037 INFO L495 AbstractCegarLoop]: Abstraction has 24671 states and 40447 transitions. [2023-04-02 02:51:09,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (35), 5 states have call predecessors, (35), 4 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:51:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 24671 states and 40447 transitions. [2023-04-02 02:51:09,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-04-02 02:51:09,040 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:09,040 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:09,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2023-04-02 02:51:09,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:51:09,248 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:09,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -819342794, now seen corresponding path program 1 times [2023-04-02 02:51:09,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:09,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459784600] [2023-04-02 02:51:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:09,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:09,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:09,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:09,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:09,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:51:09,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:51:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:10,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:10,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:10,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:51:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:10,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:10,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:10,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:51:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:51:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:51:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:51:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2023-04-02 02:51:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,179 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:51:10,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:10,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459784600] [2023-04-02 02:51:10,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459784600] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:51:10,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011607562] [2023-04-02 02:51:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:10,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:51:10,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:10,181 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:51:10,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2023-04-02 02:51:10,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:10,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:51:10,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:51:10,672 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:51:10,673 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:51:10,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011607562] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:10,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:51:10,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 21 [2023-04-02 02:51:10,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217886182] [2023-04-02 02:51:10,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:10,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:51:10,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:10,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:51:10,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:51:10,674 INFO L87 Difference]: Start difference. First operand 24671 states and 40447 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:51:15,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:15,640 INFO L93 Difference]: Finished difference Result 49432 states and 83893 transitions. [2023-04-02 02:51:15,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:51:15,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 209 [2023-04-02 02:51:15,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:15,728 INFO L225 Difference]: With dead ends: 49432 [2023-04-02 02:51:15,728 INFO L226 Difference]: Without dead ends: 24605 [2023-04-02 02:51:15,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 268 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:51:15,804 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 93 mSDsluCounter, 2080 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:15,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 3166 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:51:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24605 states. [2023-04-02 02:51:20,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24605 to 24605. [2023-04-02 02:51:20,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24605 states, 18673 states have (on average 1.5587211481818668) internal successors, (29106), 19297 states have internal predecessors, (29106), 3689 states have call successors, (3689), 1861 states have call predecessors, (3689), 2242 states have return successors, (7388), 3594 states have call predecessors, (7388), 3635 states have call successors, (7388) [2023-04-02 02:51:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24605 states to 24605 states and 40183 transitions. [2023-04-02 02:51:20,997 INFO L78 Accepts]: Start accepts. Automaton has 24605 states and 40183 transitions. Word has length 209 [2023-04-02 02:51:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:20,998 INFO L495 AbstractCegarLoop]: Abstraction has 24605 states and 40183 transitions. [2023-04-02 02:51:20,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:51:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 24605 states and 40183 transitions. [2023-04-02 02:51:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-04-02 02:51:21,001 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:21,001 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:51:21,010 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2023-04-02 02:51:21,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:51:21,210 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:21,210 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1375967702, now seen corresponding path program 1 times [2023-04-02 02:51:21,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:21,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373164347] [2023-04-02 02:51:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:21,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:21,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:21,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:21,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:51:21,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:51:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:22,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:51:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:22,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:51:22,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:51:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:51:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:51:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 02:51:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:22,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373164347] [2023-04-02 02:51:22,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373164347] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:51:22,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118514097] [2023-04-02 02:51:22,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:22,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:51:22,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:22,211 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:51:22,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2023-04-02 02:51:22,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:22,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 2990 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 02:51:22,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:51:22,814 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:22,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:51:22,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118514097] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:22,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:51:22,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:51:22,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273445360] [2023-04-02 02:51:22,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:22,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:22,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:51:22,816 INFO L87 Difference]: Start difference. First operand 24605 states and 40183 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:51:36,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:36,252 INFO L93 Difference]: Finished difference Result 69066 states and 121660 transitions. [2023-04-02 02:51:36,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 02:51:36,252 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 210 [2023-04-02 02:51:36,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:36,419 INFO L225 Difference]: With dead ends: 69066 [2023-04-02 02:51:36,419 INFO L226 Difference]: Without dead ends: 44549 [2023-04-02 02:51:36,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 267 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2023-04-02 02:51:36,495 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 6676 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 4071 mSolverCounterSat, 1987 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6786 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 6058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1987 IncrementalHoareTripleChecker+Valid, 4071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:36,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6786 Valid, 378 Invalid, 6058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1987 Valid, 4071 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-04-02 02:51:36,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44549 states. [2023-04-02 02:51:45,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44549 to 42362. [2023-04-02 02:51:45,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42362 states, 32219 states have (on average 1.5336292249914647) internal successors, (49412), 33170 states have internal predecessors, (49412), 6289 states have call successors, (6289), 3252 states have call predecessors, (6289), 3853 states have return successors, (12479), 6205 states have call predecessors, (12479), 6230 states have call successors, (12479) [2023-04-02 02:51:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42362 states to 42362 states and 68180 transitions. [2023-04-02 02:51:45,711 INFO L78 Accepts]: Start accepts. Automaton has 42362 states and 68180 transitions. Word has length 210 [2023-04-02 02:51:45,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:45,711 INFO L495 AbstractCegarLoop]: Abstraction has 42362 states and 68180 transitions. [2023-04-02 02:51:45,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:51:45,712 INFO L276 IsEmpty]: Start isEmpty. Operand 42362 states and 68180 transitions. [2023-04-02 02:51:45,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-04-02 02:51:45,714 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:45,715 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:51:45,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2023-04-02 02:51:45,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2023-04-02 02:51:45,916 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:45,917 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash -641055437, now seen corresponding path program 1 times [2023-04-02 02:51:45,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:45,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701054996] [2023-04-02 02:51:45,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:45,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:46,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:46,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:46,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:51:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:51:46,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:51:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:51:46,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:51:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:51:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:51:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:51:46,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 02:51:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,925 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:46,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:46,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701054996] [2023-04-02 02:51:46,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701054996] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:51:46,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1995749767] [2023-04-02 02:51:46,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:46,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:51:46,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:46,957 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:51:46,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2023-04-02 02:51:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:47,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 2993 conjuncts, 18 conjunts are in the unsatisfiable core [2023-04-02 02:51:47,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:51:47,543 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:47,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:51:47,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1995749767] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:47,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:51:47,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2023-04-02 02:51:47,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939008668] [2023-04-02 02:51:47,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:47,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:51:47,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:47,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:51:47,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-04-02 02:51:47,545 INFO L87 Difference]: Start difference. First operand 42362 states and 68180 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:52:00,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:00,500 INFO L93 Difference]: Finished difference Result 82095 states and 132622 transitions. [2023-04-02 02:52:00,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:00,501 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) Word has length 211 [2023-04-02 02:52:00,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:00,676 INFO L225 Difference]: With dead ends: 82095 [2023-04-02 02:52:00,676 INFO L226 Difference]: Without dead ends: 42784 [2023-04-02 02:52:00,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 268 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=105, Invalid=651, Unknown=0, NotChecked=0, Total=756 [2023-04-02 02:52:00,792 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 3055 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 6762 mSolverCounterSat, 819 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3168 SdHoareTripleChecker+Valid, 627 SdHoareTripleChecker+Invalid, 7581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 819 IncrementalHoareTripleChecker+Valid, 6762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:00,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3168 Valid, 627 Invalid, 7581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [819 Valid, 6762 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-04-02 02:52:00,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42784 states. [2023-04-02 02:52:09,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42784 to 42314. [2023-04-02 02:52:09,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42314 states, 32171 states have (on average 1.5314413602312642) internal successors, (49268), 33122 states have internal predecessors, (49268), 6289 states have call successors, (6289), 3252 states have call predecessors, (6289), 3853 states have return successors, (12479), 6205 states have call predecessors, (12479), 6230 states have call successors, (12479) [2023-04-02 02:52:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42314 states to 42314 states and 68036 transitions. [2023-04-02 02:52:09,991 INFO L78 Accepts]: Start accepts. Automaton has 42314 states and 68036 transitions. Word has length 211 [2023-04-02 02:52:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:09,991 INFO L495 AbstractCegarLoop]: Abstraction has 42314 states and 68036 transitions. [2023-04-02 02:52:09,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 7 states have internal predecessors, (120), 5 states have call successors, (35), 5 states have call predecessors, (35), 5 states have return successors, (28), 6 states have call predecessors, (28), 5 states have call successors, (28) [2023-04-02 02:52:09,992 INFO L276 IsEmpty]: Start isEmpty. Operand 42314 states and 68036 transitions. [2023-04-02 02:52:09,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2023-04-02 02:52:09,994 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:09,994 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:52:10,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2023-04-02 02:52:10,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2023-04-02 02:52:10,195 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:10,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:10,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1003933795, now seen corresponding path program 1 times [2023-04-02 02:52:10,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:10,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85152422] [2023-04-02 02:52:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:52:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:52:10,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:52:10,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:52:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:11,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:11,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:52:11,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:52:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:11,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:52:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:52:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:52:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:52:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-02 02:52:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:11,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:11,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85152422] [2023-04-02 02:52:11,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85152422] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:52:11,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999890330] [2023-04-02 02:52:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:11,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:52:11,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:52:11,128 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:52:11,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2023-04-02 02:52:11,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:11,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:52:11,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:52:11,549 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:11,549 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:52:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999890330] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:52:11,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2023-04-02 02:52:11,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472397877] [2023-04-02 02:52:11,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:11,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:52:11,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:11,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:52:11,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:52:11,551 INFO L87 Difference]: Start difference. First operand 42314 states and 68036 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:52:20,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:20,796 INFO L93 Difference]: Finished difference Result 85312 states and 139516 transitions. [2023-04-02 02:52:20,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:52:20,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213 [2023-04-02 02:52:20,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:20,956 INFO L225 Difference]: With dead ends: 85312 [2023-04-02 02:52:20,956 INFO L226 Difference]: Without dead ends: 43106 [2023-04-02 02:52:21,079 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:52:21,080 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 2 mSDsluCounter, 3272 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4369 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:21,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4369 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:52:21,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43106 states. [2023-04-02 02:52:29,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43106 to 42602. [2023-04-02 02:52:29,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42602 states, 32387 states have (on average 1.5278969957081545) internal successors, (49484), 33338 states have internal predecessors, (49484), 6289 states have call successors, (6289), 3252 states have call predecessors, (6289), 3925 states have return successors, (12551), 6277 states have call predecessors, (12551), 6230 states have call successors, (12551) [2023-04-02 02:52:30,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42602 states to 42602 states and 68324 transitions. [2023-04-02 02:52:30,135 INFO L78 Accepts]: Start accepts. Automaton has 42602 states and 68324 transitions. Word has length 213 [2023-04-02 02:52:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:30,135 INFO L495 AbstractCegarLoop]: Abstraction has 42602 states and 68324 transitions. [2023-04-02 02:52:30,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-02 02:52:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 42602 states and 68324 transitions. [2023-04-02 02:52:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-02 02:52:30,138 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:30,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:52:30,148 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2023-04-02 02:52:30,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2023-04-02 02:52:30,339 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:30,339 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:30,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1086963120, now seen corresponding path program 1 times [2023-04-02 02:52:30,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:30,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116778514] [2023-04-02 02:52:30,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:30,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:30,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:30,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:30,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:30,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:52:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:31,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:52:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:52:31,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:52:31,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:52:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:52:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:52:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:31,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:52:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:52:31,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:52:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 02:52:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,260 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:52:31,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:31,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116778514] [2023-04-02 02:52:31,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116778514] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:52:31,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925763243] [2023-04-02 02:52:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:31,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:52:31,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:52:31,262 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:52:31,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2023-04-02 02:52:31,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:31,636 INFO L262 TraceCheckSpWp]: Trace formula consists of 2999 conjuncts, 19 conjunts are in the unsatisfiable core [2023-04-02 02:52:31,640 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:52:31,851 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:31,851 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 02:52:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-04-02 02:52:32,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925763243] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 02:52:32,268 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 02:52:32,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 9] total 31 [2023-04-02 02:52:32,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770748435] [2023-04-02 02:52:32,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 02:52:32,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-04-02 02:52:32,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:32,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-04-02 02:52:32,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2023-04-02 02:52:32,270 INFO L87 Difference]: Start difference. First operand 42602 states and 68324 transitions. Second operand has 31 states, 30 states have (on average 9.8) internal successors, (294), 23 states have internal predecessors, (294), 12 states have call successors, (92), 14 states have call predecessors, (92), 15 states have return successors, (76), 17 states have call predecessors, (76), 12 states have call successors, (76)