/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/minepump_spec5_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:25:04,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:25:04,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:25:04,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:25:04,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:25:04,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:25:04,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:25:04,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:25:04,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:25:04,661 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:25:04,663 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:25:04,664 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:25:04,664 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:25:04,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:25:04,667 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:25:04,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:25:04,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:25:04,670 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:25:04,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:25:04,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:25:04,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:25:04,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:25:04,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:25:04,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:25:04,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:25:04,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:25:04,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:25:04,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:25:04,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:25:04,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:25:04,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:25:04,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:25:04,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:25:04,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:25:04,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:25:04,695 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:25:04,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:25:04,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:25:04,696 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:25:04,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:25:04,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:25:04,704 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 04:25:04,729 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:25:04,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:25:04,730 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:25:04,730 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:25:04,731 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:25:04,731 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:25:04,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:25:04,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:25:04,731 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:25:04,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:25:04,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:25:04,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:25:04,733 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:25:04,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:25:04,734 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:25:04,734 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:25:04,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:25:04,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:25:04,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:25:04,963 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:25:04,963 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:25:04,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2023-04-02 04:25:06,188 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:25:06,424 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:25:06,425 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product38.cil.c [2023-04-02 04:25:06,434 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14888def/245a7aea9ecb4bdb9993c58411254674/FLAG61bd4895d [2023-04-02 04:25:06,450 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a14888def/245a7aea9ecb4bdb9993c58411254674 [2023-04-02 04:25:06,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:25:06,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:25:06,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:25:06,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:25:06,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:25:06,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4202d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06, skipping insertion in model container [2023-04-02 04:25:06,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:25:06,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:25:06,647 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/minepump_spec5_product38.cil.c[1605,1618] [2023-04-02 04:25:06,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:25:06,798 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:25:06,810 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/minepump_spec5_product38.cil.c[1605,1618] [2023-04-02 04:25:06,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:25:06,908 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:25:06,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06 WrapperNode [2023-04-02 04:25:06,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:25:06,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:25:06,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:25:06,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:25:06,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:06,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:25:06,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:25:06,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:25:06,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:25:06,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (1/1) ... [2023-04-02 04:25:07,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:25:07,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:07,033 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 04:25:07,056 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 04:25:07,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:25:07,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:25:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:25:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:25:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:25:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:25:07,080 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:25:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:25:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:25:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:25:07,081 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:25:07,082 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:25:07,082 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:25:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:25:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:25:07,083 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:25:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:25:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:25:07,084 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:25:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:25:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:25:07,085 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:25:07,086 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:25:07,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:25:07,088 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:25:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:25:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:25:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:25:07,089 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:25:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:25:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:25:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:25:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:25:07,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:25:07,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:25:07,282 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:25:07,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:25:07,824 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:25:07,831 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:25:07,832 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:25:07,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:25:07 BoogieIcfgContainer [2023-04-02 04:25:07,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:25:07,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:25:07,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:25:07,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:25:07,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:25:06" (1/3) ... [2023-04-02 04:25:07,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0351d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:25:07, skipping insertion in model container [2023-04-02 04:25:07,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:25:06" (2/3) ... [2023-04-02 04:25:07,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ac0351d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:25:07, skipping insertion in model container [2023-04-02 04:25:07,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:25:07" (3/3) ... [2023-04-02 04:25:07,841 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product38.cil.c [2023-04-02 04:25:07,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:25:07,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:25:07,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:25:07,909 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;@156bc4f8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:25:07,909 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:25:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 183 states, 100 states have (on average 1.29) internal successors, (129), 113 states have internal predecessors, (129), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) [2023-04-02 04:25:07,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-02 04:25:07,923 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:07,924 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:07,924 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:07,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:07,928 INFO L85 PathProgramCache]: Analyzing trace with hash -602071146, now seen corresponding path program 1 times [2023-04-02 04:25:07,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:07,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244156980] [2023-04-02 04:25:07,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:07,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:25:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:25:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:08,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:08,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244156980] [2023-04-02 04:25:08,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244156980] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:08,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:08,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:25:08,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755495416] [2023-04-02 04:25:08,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:08,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:25:08,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:25:08,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:25:08,304 INFO L87 Difference]: Start difference. First operand has 183 states, 100 states have (on average 1.29) internal successors, (129), 113 states have internal predecessors, (129), 49 states have call successors, (49), 31 states have call predecessors, (49), 31 states have return successors, (49), 45 states have call predecessors, (49), 49 states have call successors, (49) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:25:08,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:08,804 INFO L93 Difference]: Finished difference Result 309 states and 395 transitions. [2023-04-02 04:25:08,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:25:08,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 59 [2023-04-02 04:25:08,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:08,817 INFO L225 Difference]: With dead ends: 309 [2023-04-02 04:25:08,817 INFO L226 Difference]: Without dead ends: 170 [2023-04-02 04:25:08,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:25:08,824 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 104 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:08,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 81 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:25:08,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-04-02 04:25:08,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 140. [2023-04-02 04:25:08,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 81 states have (on average 1.2345679012345678) internal successors, (100), 91 states have internal predecessors, (100), 34 states have call successors, (34), 29 states have call predecessors, (34), 24 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-04-02 04:25:08,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2023-04-02 04:25:08,889 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 59 [2023-04-02 04:25:08,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:08,890 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2023-04-02 04:25:08,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 2 states have internal predecessors, (30), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:25:08,890 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2023-04-02 04:25:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 04:25:08,893 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:08,893 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:08,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:25:08,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:08,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:08,894 INFO L85 PathProgramCache]: Analyzing trace with hash -695592088, now seen corresponding path program 1 times [2023-04-02 04:25:08,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:08,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445054471] [2023-04-02 04:25:08,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:08,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:09,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:09,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:25:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:25:09,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:25:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:09,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:09,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445054471] [2023-04-02 04:25:09,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445054471] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:09,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:09,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:25:09,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361330705] [2023-04-02 04:25:09,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:09,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:25:09,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:09,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:25:09,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:25:09,050 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:25:09,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:09,476 INFO L93 Difference]: Finished difference Result 250 states and 303 transitions. [2023-04-02 04:25:09,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:25:09,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2023-04-02 04:25:09,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:09,484 INFO L225 Difference]: With dead ends: 250 [2023-04-02 04:25:09,485 INFO L226 Difference]: Without dead ends: 160 [2023-04-02 04:25:09,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:25:09,493 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 131 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:09,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 62 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:25:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-04-02 04:25:09,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2023-04-02 04:25:09,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 31 states have call successors, (31), 28 states have call predecessors, (31), 24 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:25:09,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 151 transitions. [2023-04-02 04:25:09,548 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 151 transitions. Word has length 60 [2023-04-02 04:25:09,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:09,549 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 151 transitions. [2023-04-02 04:25:09,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-04-02 04:25:09,549 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 151 transitions. [2023-04-02 04:25:09,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:25:09,555 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:09,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:09,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:25:09,557 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:09,558 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:09,558 INFO L85 PathProgramCache]: Analyzing trace with hash -421271268, now seen corresponding path program 1 times [2023-04-02 04:25:09,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:09,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213794661] [2023-04-02 04:25:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:09,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:09,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:09,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:25:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:25:09,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:09,892 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:09,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:09,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213794661] [2023-04-02 04:25:09,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213794661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:09,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:09,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:25:09,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205753455] [2023-04-02 04:25:09,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:09,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:25:09,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:09,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:25:09,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:25:09,895 INFO L87 Difference]: Start difference. First operand 131 states and 151 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:25:10,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:10,459 INFO L93 Difference]: Finished difference Result 263 states and 322 transitions. [2023-04-02 04:25:10,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:25:10,460 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 65 [2023-04-02 04:25:10,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:10,465 INFO L225 Difference]: With dead ends: 263 [2023-04-02 04:25:10,465 INFO L226 Difference]: Without dead ends: 160 [2023-04-02 04:25:10,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:25:10,467 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 218 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:10,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 66 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:25:10,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-04-02 04:25:10,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 131. [2023-04-02 04:25:10,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 84 states have internal predecessors, (92), 31 states have call successors, (31), 28 states have call predecessors, (31), 24 states have return successors, (27), 23 states have call predecessors, (27), 27 states have call successors, (27) [2023-04-02 04:25:10,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 150 transitions. [2023-04-02 04:25:10,502 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 150 transitions. Word has length 65 [2023-04-02 04:25:10,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:10,504 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 150 transitions. [2023-04-02 04:25:10,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2023-04-02 04:25:10,504 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 150 transitions. [2023-04-02 04:25:10,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 04:25:10,506 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:10,507 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:10,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:25:10,507 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:10,508 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:10,508 INFO L85 PathProgramCache]: Analyzing trace with hash -757045872, now seen corresponding path program 1 times [2023-04-02 04:25:10,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:10,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418590868] [2023-04-02 04:25:10,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:10,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:10,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:25:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 04:25:10,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:25:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:10,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:10,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:10,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418590868] [2023-04-02 04:25:10,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418590868] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:10,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:10,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:25:10,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188801401] [2023-04-02 04:25:10,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:10,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:25:10,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:10,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:25:10,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:25:10,760 INFO L87 Difference]: Start difference. First operand 131 states and 150 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 5 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-02 04:25:11,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:11,359 INFO L93 Difference]: Finished difference Result 367 states and 456 transitions. [2023-04-02 04:25:11,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:25:11,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 5 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) Word has length 78 [2023-04-02 04:25:11,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:11,362 INFO L225 Difference]: With dead ends: 367 [2023-04-02 04:25:11,362 INFO L226 Difference]: Without dead ends: 264 [2023-04-02 04:25:11,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:25:11,363 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 444 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 289 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 289 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:11,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 100 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [289 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:25:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2023-04-02 04:25:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 218. [2023-04-02 04:25:11,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 129 states have (on average 1.2093023255813953) internal successors, (156), 138 states have internal predecessors, (156), 45 states have call successors, (45), 42 states have call predecessors, (45), 43 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2023-04-02 04:25:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 249 transitions. [2023-04-02 04:25:11,405 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 249 transitions. Word has length 78 [2023-04-02 04:25:11,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:11,406 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 249 transitions. [2023-04-02 04:25:11,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 5 states have internal predecessors, (44), 5 states have call successors, (19), 6 states have call predecessors, (19), 4 states have return successors, (13), 4 states have call predecessors, (13), 5 states have call successors, (13) [2023-04-02 04:25:11,407 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 249 transitions. [2023-04-02 04:25:11,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 04:25:11,408 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:11,408 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:11,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:25:11,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:11,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -712721409, now seen corresponding path program 1 times [2023-04-02 04:25:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:11,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434714401] [2023-04-02 04:25:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:11,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:11,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:25:11,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 04:25:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 04:25:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 04:25:11,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:11,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434714401] [2023-04-02 04:25:11,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434714401] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:11,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:11,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:25:11,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814905438] [2023-04-02 04:25:11,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:11,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:25:11,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:25:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:25:11,721 INFO L87 Difference]: Start difference. First operand 218 states and 249 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:12,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:12,435 INFO L93 Difference]: Finished difference Result 453 states and 550 transitions. [2023-04-02 04:25:12,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:25:12,436 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 92 [2023-04-02 04:25:12,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:12,441 INFO L225 Difference]: With dead ends: 453 [2023-04-02 04:25:12,441 INFO L226 Difference]: Without dead ends: 263 [2023-04-02 04:25:12,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:25:12,444 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 234 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:12,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 107 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:25:12,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-04-02 04:25:12,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 217. [2023-04-02 04:25:12,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 128 states have (on average 1.1953125) internal successors, (153), 137 states have internal predecessors, (153), 45 states have call successors, (45), 42 states have call predecessors, (45), 43 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2023-04-02 04:25:12,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2023-04-02 04:25:12,487 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 92 [2023-04-02 04:25:12,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:12,488 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2023-04-02 04:25:12,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 5 states have internal predecessors, (56), 4 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:12,488 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2023-04-02 04:25:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 04:25:12,491 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:12,492 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:12,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:25:12,492 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:12,492 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:12,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1796238635, now seen corresponding path program 1 times [2023-04-02 04:25:12,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:12,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428186375] [2023-04-02 04:25:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:12,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:12,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:25:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 04:25:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:25:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:12,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:12,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:12,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428186375] [2023-04-02 04:25:12,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428186375] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:12,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:12,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:25:12,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884473191] [2023-04-02 04:25:12,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:12,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:25:12,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:12,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:25:12,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:25:12,708 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:13,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:13,287 INFO L93 Difference]: Finished difference Result 451 states and 544 transitions. [2023-04-02 04:25:13,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:25:13,289 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2023-04-02 04:25:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:13,290 INFO L225 Difference]: With dead ends: 451 [2023-04-02 04:25:13,291 INFO L226 Difference]: Without dead ends: 262 [2023-04-02 04:25:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:25:13,293 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 293 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:13,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 88 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 773 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:25:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-04-02 04:25:13,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 222. [2023-04-02 04:25:13,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 132 states have (on average 1.1893939393939394) internal successors, (157), 141 states have internal predecessors, (157), 45 states have call successors, (45), 42 states have call predecessors, (45), 44 states have return successors, (49), 45 states have call predecessors, (49), 41 states have call successors, (49) [2023-04-02 04:25:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 251 transitions. [2023-04-02 04:25:13,328 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 251 transitions. Word has length 93 [2023-04-02 04:25:13,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:13,328 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 251 transitions. [2023-04-02 04:25:13,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:13,328 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 251 transitions. [2023-04-02 04:25:13,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 04:25:13,333 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:13,333 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:13,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:25:13,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:13,333 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:13,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1797128787, now seen corresponding path program 1 times [2023-04-02 04:25:13,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:13,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207619728] [2023-04-02 04:25:13,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:13,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:13,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:13,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:25:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:13,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:13,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 04:25:13,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:25:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:13,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:13,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:13,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207619728] [2023-04-02 04:25:13,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207619728] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:13,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:13,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:25:13,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866425524] [2023-04-02 04:25:13,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:13,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:25:13,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:13,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:25:13,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:25:13,550 INFO L87 Difference]: Start difference. First operand 222 states and 251 transitions. Second operand has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:14,325 INFO L93 Difference]: Finished difference Result 463 states and 564 transitions. [2023-04-02 04:25:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:25:14,325 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 93 [2023-04-02 04:25:14,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:14,327 INFO L225 Difference]: With dead ends: 463 [2023-04-02 04:25:14,327 INFO L226 Difference]: Without dead ends: 269 [2023-04-02 04:25:14,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-04-02 04:25:14,330 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 146 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:14,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 112 Invalid, 1147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:25:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-04-02 04:25:14,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 226. [2023-04-02 04:25:14,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 135 states have (on average 1.1851851851851851) internal successors, (160), 144 states have internal predecessors, (160), 45 states have call successors, (45), 42 states have call predecessors, (45), 45 states have return successors, (50), 46 states have call predecessors, (50), 41 states have call successors, (50) [2023-04-02 04:25:14,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2023-04-02 04:25:14,361 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 93 [2023-04-02 04:25:14,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:14,361 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2023-04-02 04:25:14,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.0) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-02 04:25:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2023-04-02 04:25:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 04:25:14,362 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:14,362 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:14,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:25:14,363 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:14,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:14,363 INFO L85 PathProgramCache]: Analyzing trace with hash -71647890, now seen corresponding path program 1 times [2023-04-02 04:25:14,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:14,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588200677] [2023-04-02 04:25:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:14,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:14,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:25:14,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 04:25:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 04:25:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:14,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:14,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588200677] [2023-04-02 04:25:14,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588200677] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:14,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:14,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:25:14,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474791769] [2023-04-02 04:25:14,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:14,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:25:14,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:14,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:25:14,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:25:14,565 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-04-02 04:25:15,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:15,240 INFO L93 Difference]: Finished difference Result 645 states and 802 transitions. [2023-04-02 04:25:15,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:25:15,240 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) Word has length 93 [2023-04-02 04:25:15,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:15,243 INFO L225 Difference]: With dead ends: 645 [2023-04-02 04:25:15,243 INFO L226 Difference]: Without dead ends: 447 [2023-04-02 04:25:15,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:25:15,245 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 395 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 410 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:15,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [410 Valid, 104 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:25:15,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-04-02 04:25:15,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 405. [2023-04-02 04:25:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 248 states have (on average 1.1733870967741935) internal successors, (291), 266 states have internal predecessors, (291), 80 states have call successors, (80), 75 states have call predecessors, (80), 76 states have return successors, (100), 78 states have call predecessors, (100), 76 states have call successors, (100) [2023-04-02 04:25:15,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 471 transitions. [2023-04-02 04:25:15,292 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 471 transitions. Word has length 93 [2023-04-02 04:25:15,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:15,293 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 471 transitions. [2023-04-02 04:25:15,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 4 states have internal predecessors, (55), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (15), 4 states have call predecessors, (15), 5 states have call successors, (15) [2023-04-02 04:25:15,294 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 471 transitions. [2023-04-02 04:25:15,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 04:25:15,297 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:15,297 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:25:15,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:25:15,297 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:15,297 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:15,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1083504212, now seen corresponding path program 1 times [2023-04-02 04:25:15,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:15,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732394146] [2023-04-02 04:25:15,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:15,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:15,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:15,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:25:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:15,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 04:25:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 04:25:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 04:25:15,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:25:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:15,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732394146] [2023-04-02 04:25:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732394146] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:25:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:25:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:25:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401500636] [2023-04-02 04:25:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:25:15,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:25:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:15,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:25:15,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:25:15,679 INFO L87 Difference]: Start difference. First operand 405 states and 471 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-04-02 04:25:17,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:17,506 INFO L93 Difference]: Finished difference Result 1152 states and 1442 transitions. [2023-04-02 04:25:17,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-02 04:25:17,506 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 97 [2023-04-02 04:25:17,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:17,511 INFO L225 Difference]: With dead ends: 1152 [2023-04-02 04:25:17,511 INFO L226 Difference]: Without dead ends: 849 [2023-04-02 04:25:17,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=414, Invalid=1656, Unknown=0, NotChecked=0, Total=2070 [2023-04-02 04:25:17,513 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 647 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 2075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:17,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 287 Invalid, 2075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-02 04:25:17,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2023-04-02 04:25:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 698. [2023-04-02 04:25:17,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 429 states have (on average 1.167832167832168) internal successors, (501), 459 states have internal predecessors, (501), 135 states have call successors, (135), 125 states have call predecessors, (135), 133 states have return successors, (168), 138 states have call predecessors, (168), 131 states have call successors, (168) [2023-04-02 04:25:17,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 804 transitions. [2023-04-02 04:25:17,591 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 804 transitions. Word has length 97 [2023-04-02 04:25:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:17,591 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 804 transitions. [2023-04-02 04:25:17,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 8 states have internal predecessors, (57), 6 states have call successors, (22), 8 states have call predecessors, (22), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2023-04-02 04:25:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 804 transitions. [2023-04-02 04:25:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-04-02 04:25:17,594 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:17,594 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-04-02 04:25:17,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:25:17,594 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:17,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:17,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1914307253, now seen corresponding path program 1 times [2023-04-02 04:25:17,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:17,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074005808] [2023-04-02 04:25:17,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:17,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:17,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:17,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:17,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:25:17,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:17,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:17,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:17,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:17,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:17,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 04:25:17,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 04:25:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:25:17,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:17,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:17,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 04:25:17,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 04:25:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:25:17,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:17,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074005808] [2023-04-02 04:25:17,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074005808] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:25:17,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728768829] [2023-04-02 04:25:17,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:17,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:17,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:17,971 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 04:25:18,005 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 04:25:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:18,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 04:25:18,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:25:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:25:18,464 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:25:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-02 04:25:18,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728768829] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:25:18,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:25:18,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-04-02 04:25:18,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863831254] [2023-04-02 04:25:18,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:25:18,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 04:25:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 04:25:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=436, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:25:18,861 INFO L87 Difference]: Start difference. First operand 698 states and 804 transitions. Second operand has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 14 states have internal predecessors, (153), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) [2023-04-02 04:25:21,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:21,816 INFO L93 Difference]: Finished difference Result 1561 states and 1857 transitions. [2023-04-02 04:25:21,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-04-02 04:25:21,817 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 14 states have internal predecessors, (153), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) Word has length 157 [2023-04-02 04:25:21,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:21,854 INFO L225 Difference]: With dead ends: 1561 [2023-04-02 04:25:21,854 INFO L226 Difference]: Without dead ends: 961 [2023-04-02 04:25:21,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 371 SyntacticMatches, 3 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1186 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=854, Invalid=3702, Unknown=0, NotChecked=0, Total=4556 [2023-04-02 04:25:21,858 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 783 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 3275 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 3773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 3275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:21,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1066 Invalid, 3773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 3275 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-02 04:25:21,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 961 states. [2023-04-02 04:25:21,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 848. [2023-04-02 04:25:21,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 848 states, 523 states have (on average 1.1778202676864244) internal successors, (616), 569 states have internal predecessors, (616), 166 states have call successors, (166), 156 states have call predecessors, (166), 158 states have return successors, (201), 158 states have call predecessors, (201), 162 states have call successors, (201) [2023-04-02 04:25:21,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 983 transitions. [2023-04-02 04:25:21,981 INFO L78 Accepts]: Start accepts. Automaton has 848 states and 983 transitions. Word has length 157 [2023-04-02 04:25:21,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:21,982 INFO L495 AbstractCegarLoop]: Abstraction has 848 states and 983 transitions. [2023-04-02 04:25:21,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.954545454545454) internal successors, (153), 14 states have internal predecessors, (153), 8 states have call successors, (61), 11 states have call predecessors, (61), 10 states have return successors, (49), 9 states have call predecessors, (49), 7 states have call successors, (49) [2023-04-02 04:25:21,982 INFO L276 IsEmpty]: Start isEmpty. Operand 848 states and 983 transitions. [2023-04-02 04:25:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2023-04-02 04:25:21,987 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:21,987 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:25:21,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 04:25:22,194 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,SelfDestructingSolverStorable9 [2023-04-02 04:25:22,194 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:22,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:22,195 INFO L85 PathProgramCache]: Analyzing trace with hash -163002646, now seen corresponding path program 1 times [2023-04-02 04:25:22,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475526426] [2023-04-02 04:25:22,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:22,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:22,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:22,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:25:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 04:25:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 04:25:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:25:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2023-04-02 04:25:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2023-04-02 04:25:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2023-04-02 04:25:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:22,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-04-02 04:25:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-04-02 04:25:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 82 proven. 31 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-02 04:25:22,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475526426] [2023-04-02 04:25:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475526426] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:25:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865491414] [2023-04-02 04:25:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:22,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:22,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:22,725 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 04:25:22,728 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 04:25:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:22,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 851 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:25:22,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:25:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 203 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-04-02 04:25:23,163 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:25:23,966 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 79 proven. 33 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2023-04-02 04:25:23,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865491414] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:25:23,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:25:23,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 13] total 33 [2023-04-02 04:25:23,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763387732] [2023-04-02 04:25:23,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:25:23,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-04-02 04:25:23,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:23,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-04-02 04:25:23,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=905, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 04:25:23,970 INFO L87 Difference]: Start difference. First operand 848 states and 983 transitions. Second operand has 33 states, 32 states have (on average 6.78125) internal successors, (217), 24 states have internal predecessors, (217), 13 states have call successors, (95), 11 states have call predecessors, (95), 18 states have return successors, (86), 18 states have call predecessors, (86), 13 states have call successors, (86) [2023-04-02 04:25:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:26,979 INFO L93 Difference]: Finished difference Result 2116 states and 2833 transitions. [2023-04-02 04:25:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-04-02 04:25:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.78125) internal successors, (217), 24 states have internal predecessors, (217), 13 states have call successors, (95), 11 states have call predecessors, (95), 18 states have return successors, (86), 18 states have call predecessors, (86), 13 states have call successors, (86) Word has length 277 [2023-04-02 04:25:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:26,987 INFO L225 Difference]: With dead ends: 2116 [2023-04-02 04:25:26,987 INFO L226 Difference]: Without dead ends: 1319 [2023-04-02 04:25:26,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 645 SyntacticMatches, 7 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1302 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=943, Invalid=4169, Unknown=0, NotChecked=0, Total=5112 [2023-04-02 04:25:26,991 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 1477 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 3352 mSolverCounterSat, 1059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1477 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1059 IncrementalHoareTripleChecker+Valid, 3352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:26,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1477 Valid, 953 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1059 Valid, 3352 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 04:25:26,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2023-04-02 04:25:27,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 894. [2023-04-02 04:25:27,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 551 states have (on average 1.159709618874773) internal successors, (639), 594 states have internal predecessors, (639), 179 states have call successors, (179), 166 states have call predecessors, (179), 163 states have return successors, (211), 168 states have call predecessors, (211), 175 states have call successors, (211) [2023-04-02 04:25:27,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1029 transitions. [2023-04-02 04:25:27,116 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1029 transitions. Word has length 277 [2023-04-02 04:25:27,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:27,116 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1029 transitions. [2023-04-02 04:25:27,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.78125) internal successors, (217), 24 states have internal predecessors, (217), 13 states have call successors, (95), 11 states have call predecessors, (95), 18 states have return successors, (86), 18 states have call predecessors, (86), 13 states have call successors, (86) [2023-04-02 04:25:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1029 transitions. [2023-04-02 04:25:27,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2023-04-02 04:25:27,122 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:27,122 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:25:27,133 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 04:25:27,329 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,SelfDestructingSolverStorable10 [2023-04-02 04:25:27,330 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:27,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:27,330 INFO L85 PathProgramCache]: Analyzing trace with hash 406739382, now seen corresponding path program 1 times [2023-04-02 04:25:27,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:27,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476297892] [2023-04-02 04:25:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:27,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:25:27,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 04:25:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:27,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 04:25:27,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:25:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2023-04-02 04:25:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2023-04-02 04:25:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-04-02 04:25:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-04-02 04:25:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2023-04-02 04:25:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,799 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 94 proven. 40 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-04-02 04:25:27,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476297892] [2023-04-02 04:25:27,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476297892] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:25:27,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769730336] [2023-04-02 04:25:27,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:27,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:27,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:27,802 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 04:25:27,826 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 04:25:27,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:27,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-02 04:25:28,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:25:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 238 proven. 16 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-02 04:25:28,165 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:25:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 98 proven. 53 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2023-04-02 04:25:28,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769730336] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:25:28,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:25:28,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 27 [2023-04-02 04:25:28,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24405391] [2023-04-02 04:25:28,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:25:28,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-04-02 04:25:28,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-04-02 04:25:28,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2023-04-02 04:25:28,840 INFO L87 Difference]: Start difference. First operand 894 states and 1029 transitions. Second operand has 27 states, 26 states have (on average 8.346153846153847) internal successors, (217), 18 states have internal predecessors, (217), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) [2023-04-02 04:25:30,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:30,682 INFO L93 Difference]: Finished difference Result 1697 states and 1991 transitions. [2023-04-02 04:25:30,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-04-02 04:25:30,682 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 8.346153846153847) internal successors, (217), 18 states have internal predecessors, (217), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) Word has length 289 [2023-04-02 04:25:30,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:30,688 INFO L225 Difference]: With dead ends: 1697 [2023-04-02 04:25:30,688 INFO L226 Difference]: Without dead ends: 924 [2023-04-02 04:25:30,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 677 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 507 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=498, Invalid=2154, Unknown=0, NotChecked=0, Total=2652 [2023-04-02 04:25:30,691 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 817 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:30,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 473 Invalid, 3015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-02 04:25:30,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2023-04-02 04:25:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 894. [2023-04-02 04:25:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 551 states have (on average 1.1542649727767695) internal successors, (636), 594 states have internal predecessors, (636), 179 states have call successors, (179), 166 states have call predecessors, (179), 163 states have return successors, (211), 168 states have call predecessors, (211), 175 states have call successors, (211) [2023-04-02 04:25:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1026 transitions. [2023-04-02 04:25:30,799 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1026 transitions. Word has length 289 [2023-04-02 04:25:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:30,799 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1026 transitions. [2023-04-02 04:25:30,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 8.346153846153847) internal successors, (217), 18 states have internal predecessors, (217), 8 states have call successors, (88), 10 states have call predecessors, (88), 14 states have return successors, (79), 12 states have call predecessors, (79), 8 states have call successors, (79) [2023-04-02 04:25:30,800 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1026 transitions. [2023-04-02 04:25:30,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-04-02 04:25:30,804 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:30,804 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2023-04-02 04:25:30,814 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 04:25:31,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:31,012 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:31,013 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:31,013 INFO L85 PathProgramCache]: Analyzing trace with hash 436891087, now seen corresponding path program 1 times [2023-04-02 04:25:31,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:31,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745289304] [2023-04-02 04:25:31,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:31,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:25:31,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:31,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 04:25:31,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 04:25:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:25:31,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2023-04-02 04:25:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-04-02 04:25:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2023-04-02 04:25:31,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2023-04-02 04:25:31,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-04-02 04:25:31,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 75 proven. 11 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2023-04-02 04:25:31,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745289304] [2023-04-02 04:25:31,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745289304] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:25:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164317515] [2023-04-02 04:25:31,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:31,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:31,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:31,425 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 04:25:31,428 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 04:25:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:31,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-02 04:25:31,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:25:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 166 proven. 16 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-04-02 04:25:31,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:25:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 98 proven. 27 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-04-02 04:25:32,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164317515] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:25:32,598 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:25:32,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 13] total 30 [2023-04-02 04:25:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965842974] [2023-04-02 04:25:32,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:25:32,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-04-02 04:25:32,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:32,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-04-02 04:25:32,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2023-04-02 04:25:32,602 INFO L87 Difference]: Start difference. First operand 894 states and 1026 transitions. Second operand has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 21 states have internal predecessors, (213), 16 states have call successors, (93), 13 states have call predecessors, (93), 16 states have return successors, (93), 17 states have call predecessors, (93), 16 states have call successors, (93) [2023-04-02 04:25:37,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:37,758 INFO L93 Difference]: Finished difference Result 3484 states and 4482 transitions. [2023-04-02 04:25:37,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-04-02 04:25:37,759 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 21 states have internal predecessors, (213), 16 states have call successors, (93), 13 states have call predecessors, (93), 16 states have return successors, (93), 17 states have call predecessors, (93), 16 states have call successors, (93) Word has length 290 [2023-04-02 04:25:37,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:37,775 INFO L225 Difference]: With dead ends: 3484 [2023-04-02 04:25:37,775 INFO L226 Difference]: Without dead ends: 2626 [2023-04-02 04:25:37,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 670 SyntacticMatches, 11 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4891 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2627, Invalid=12135, Unknown=0, NotChecked=0, Total=14762 [2023-04-02 04:25:37,784 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 2806 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 5609 mSolverCounterSat, 2061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 1412 SdHoareTripleChecker+Invalid, 7670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2061 IncrementalHoareTripleChecker+Valid, 5609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:37,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2806 Valid, 1412 Invalid, 7670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2061 Valid, 5609 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 04:25:37,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2626 states. [2023-04-02 04:25:38,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2626 to 1989. [2023-04-02 04:25:38,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1989 states, 1229 states have (on average 1.128559804719284) internal successors, (1387), 1320 states have internal predecessors, (1387), 403 states have call successors, (403), 380 states have call predecessors, (403), 356 states have return successors, (451), 360 states have call predecessors, (451), 399 states have call successors, (451) [2023-04-02 04:25:38,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2241 transitions. [2023-04-02 04:25:38,103 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2241 transitions. Word has length 290 [2023-04-02 04:25:38,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:38,104 INFO L495 AbstractCegarLoop]: Abstraction has 1989 states and 2241 transitions. [2023-04-02 04:25:38,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 7.344827586206897) internal successors, (213), 21 states have internal predecessors, (213), 16 states have call successors, (93), 13 states have call predecessors, (93), 16 states have return successors, (93), 17 states have call predecessors, (93), 16 states have call successors, (93) [2023-04-02 04:25:38,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2241 transitions. [2023-04-02 04:25:38,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2023-04-02 04:25:38,110 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:25:38,110 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 04:25:38,120 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 04:25:38,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:38,318 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:25:38,318 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:25:38,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1173639338, now seen corresponding path program 1 times [2023-04-02 04:25:38,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:25:38,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069005636] [2023-04-02 04:25:38,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:38,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:25:38,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:25:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:38,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:25:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:25:38,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:25:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:25:38,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:25:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:38,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 04:25:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:25:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:39,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 04:25:39,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 04:25:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:25:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:25:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:25:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:25:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-04-02 04:25:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-04-02 04:25:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:25:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:25:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:25:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2023-04-02 04:25:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 308 [2023-04-02 04:25:39,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:25:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-04-02 04:25:39,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:25:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:25:39,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:25:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2023-04-02 04:25:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-04-02 04:25:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,429 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 114 proven. 116 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2023-04-02 04:25:39,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:25:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069005636] [2023-04-02 04:25:39,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069005636] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:25:39,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984584949] [2023-04-02 04:25:39,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:25:39,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:25:39,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:25:39,431 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 04:25:39,455 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 04:25:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:25:39,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 42 conjunts are in the unsatisfiable core [2023-04-02 04:25:39,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:25:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 216 proven. 51 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2023-04-02 04:25:39,979 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:25:41,193 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 124 proven. 77 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2023-04-02 04:25:41,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984584949] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:25:41,194 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:25:41,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 38 [2023-04-02 04:25:41,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233169439] [2023-04-02 04:25:41,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:25:41,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-02 04:25:41,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:25:41,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-02 04:25:41,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1178, Unknown=0, NotChecked=0, Total=1406 [2023-04-02 04:25:41,198 INFO L87 Difference]: Start difference. First operand 1989 states and 2241 transitions. Second operand has 38 states, 37 states have (on average 6.945945945945946) internal successors, (257), 30 states have internal predecessors, (257), 21 states have call successors, (107), 15 states have call predecessors, (107), 24 states have return successors, (108), 21 states have call predecessors, (108), 21 states have call successors, (108) [2023-04-02 04:25:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:25:44,491 INFO L93 Difference]: Finished difference Result 3233 states and 3741 transitions. [2023-04-02 04:25:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-04-02 04:25:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.945945945945946) internal successors, (257), 30 states have internal predecessors, (257), 21 states have call successors, (107), 15 states have call predecessors, (107), 24 states have return successors, (108), 21 states have call predecessors, (108), 21 states have call successors, (108) Word has length 363 [2023-04-02 04:25:44,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:25:44,494 INFO L225 Difference]: With dead ends: 3233 [2023-04-02 04:25:44,494 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:25:44,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 941 GetRequests, 846 SyntacticMatches, 16 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1761 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1238, Invalid=5242, Unknown=0, NotChecked=0, Total=6480 [2023-04-02 04:25:44,504 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 2249 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 4383 mSolverCounterSat, 1567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 5950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1567 IncrementalHoareTripleChecker+Valid, 4383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:25:44,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 649 Invalid, 5950 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1567 Valid, 4383 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-02 04:25:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:25:44,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:25:44,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 04:25:44,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:25:44,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 363 [2023-04-02 04:25:44,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:25:44,505 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:25:44,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.945945945945946) internal successors, (257), 30 states have internal predecessors, (257), 21 states have call successors, (107), 15 states have call predecessors, (107), 24 states have return successors, (108), 21 states have call predecessors, (108), 21 states have call successors, (108) [2023-04-02 04:25:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:25:44,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:25:44,509 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:25:44,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-04-02 04:25:44,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-02 04:25:44,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.