/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:32:08,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:32:08,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:32:08,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:32:08,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:32:08,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:32:08,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:32:08,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:32:08,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:32:08,788 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:32:08,789 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:32:08,790 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:32:08,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:32:08,791 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:32:08,792 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:32:08,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:32:08,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:32:08,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:32:08,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:32:08,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:32:08,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:32:08,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:32:08,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:32:08,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:32:08,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:32:08,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:32:08,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:32:08,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:32:08,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:32:08,811 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:32:08,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:32:08,812 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:32:08,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:32:08,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:32:08,814 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:32:08,814 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:32:08,815 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:32:08,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:32:08,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:32:08,816 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:32:08,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:32:08,821 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 04:32:08,856 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:32:08,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:32:08,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:32:08,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:32:08,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:32:08,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:32:08,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:32:08,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:32:08,859 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:32:08,859 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:32:08,860 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:32:08,860 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:32:08,860 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:32:08,860 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:32:08,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:32:08,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:32:08,862 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:32:08,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:32:08,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:32:08,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:32:08,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:32:08,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:32:08,863 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:32:08,864 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:32:09,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:32:09,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:32:09,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:32:09,133 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:32:09,134 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:32:09,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2023-04-02 04:32:10,389 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:32:10,680 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:32:10,681 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2023-04-02 04:32:10,691 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dcae9203/55227d16d3a14bfa8c7fb34e74b635ec/FLAGeb24d47d7 [2023-04-02 04:32:10,712 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dcae9203/55227d16d3a14bfa8c7fb34e74b635ec [2023-04-02 04:32:10,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:32:10,717 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:32:10,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:32:10,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:32:10,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:32:10,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:32:10" (1/1) ... [2023-04-02 04:32:10,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c81096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:10, skipping insertion in model container [2023-04-02 04:32:10,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:32:10" (1/1) ... [2023-04-02 04:32:10,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:32:10,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:32:11,021 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_product64.cil.c[9626,9639] [2023-04-02 04:32:11,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:32:11,119 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:32:11,154 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_product64.cil.c[9626,9639] [2023-04-02 04:32:11,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:32:11,215 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:32:11,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11 WrapperNode [2023-04-02 04:32:11,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:32:11,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:32:11,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:32:11,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:32:11,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,266 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:32:11,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:32:11,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:32:11,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:32:11,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (1/1) ... [2023-04-02 04:32:11,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:32:11,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:11,307 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 04:32:11,330 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 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:32:11,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:32:11,347 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-04-02 04:32:11,348 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:32:11,349 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:32:11,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:32:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:32:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:32:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:32:11,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:32:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:32:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:32:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:32:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:32:11,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:32:11,352 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:32:11,353 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2023-04-02 04:32:11,354 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:32:11,355 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:32:11,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:32:11,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:32:11,481 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:32:11,483 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:32:12,023 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:32:12,038 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:32:12,039 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:32:12,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:32:12 BoogieIcfgContainer [2023-04-02 04:32:12,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:32:12,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:32:12,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:32:12,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:32:12,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:32:10" (1/3) ... [2023-04-02 04:32:12,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b159548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:32:12, skipping insertion in model container [2023-04-02 04:32:12,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:32:11" (2/3) ... [2023-04-02 04:32:12,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b159548 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:32:12, skipping insertion in model container [2023-04-02 04:32:12,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:32:12" (3/3) ... [2023-04-02 04:32:12,053 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2023-04-02 04:32:12,068 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:32:12,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:32:12,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:32:12,174 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;@30e9527b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:32:12,175 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:32:12,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 137 states have internal predecessors, (153), 58 states have call successors, (58), 36 states have call predecessors, (58), 36 states have return successors, (58), 51 states have call predecessors, (58), 58 states have call successors, (58) [2023-04-02 04:32:12,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-02 04:32:12,242 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:12,244 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 04:32:12,244 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:12,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:12,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2016042774, now seen corresponding path program 1 times [2023-04-02 04:32:12,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:12,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369865756] [2023-04-02 04:32:12,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:12,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:12,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:12,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:12,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:32:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:32:12,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:12,559 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 04:32:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:12,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369865756] [2023-04-02 04:32:12,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369865756] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:12,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:12,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:32:12,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525113822] [2023-04-02 04:32:12,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:12,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:32:12,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:12,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:32:12,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:32:12,594 INFO L87 Difference]: Start difference. First operand has 216 states, 119 states have (on average 1.2857142857142858) internal successors, (153), 137 states have internal predecessors, (153), 58 states have call successors, (58), 36 states have call predecessors, (58), 36 states have return successors, (58), 51 states have call predecessors, (58), 58 states have call successors, (58) 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 04:32:13,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:13,129 INFO L93 Difference]: Finished difference Result 382 states and 489 transitions. [2023-04-02 04:32:13,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 04:32:13,132 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 04:32:13,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:13,146 INFO L225 Difference]: With dead ends: 382 [2023-04-02 04:32:13,147 INFO L226 Difference]: Without dead ends: 210 [2023-04-02 04:32:13,154 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 04:32:13,159 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 228 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:13,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 78 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:32:13,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-04-02 04:32:13,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 173. [2023-04-02 04:32:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 100 states have (on average 1.24) internal successors, (124), 115 states have internal predecessors, (124), 43 states have call successors, (43), 34 states have call predecessors, (43), 29 states have return successors, (38), 31 states have call predecessors, (38), 38 states have call successors, (38) [2023-04-02 04:32:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 205 transitions. [2023-04-02 04:32:13,241 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 205 transitions. Word has length 59 [2023-04-02 04:32:13,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:13,241 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 205 transitions. [2023-04-02 04:32:13,241 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 04:32:13,242 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 205 transitions. [2023-04-02 04:32:13,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-02 04:32:13,245 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:13,245 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 04:32:13,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:32:13,245 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:13,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:13,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2020938586, now seen corresponding path program 1 times [2023-04-02 04:32:13,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:13,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197448769] [2023-04-02 04:32:13,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:13,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:13,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:32:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:32:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 04:32:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:13,424 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 04:32:13,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:13,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197448769] [2023-04-02 04:32:13,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197448769] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:13,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:13,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-02 04:32:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213597669] [2023-04-02 04:32:13,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:13,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 04:32:13,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:13,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 04:32:13,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:32:13,427 INFO L87 Difference]: Start difference. First operand 173 states and 205 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 04:32:13,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:13,908 INFO L93 Difference]: Finished difference Result 317 states and 389 transitions. [2023-04-02 04:32:13,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 04:32:13,909 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 04:32:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:13,917 INFO L225 Difference]: With dead ends: 317 [2023-04-02 04:32:13,917 INFO L226 Difference]: Without dead ends: 200 [2023-04-02 04:32:13,922 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 04:32:13,925 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 159 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:13,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 62 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:32:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-04-02 04:32:13,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 164. [2023-04-02 04:32:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 94 states have (on average 1.2446808510638299) internal successors, (117), 109 states have internal predecessors, (117), 40 states have call successors, (40), 33 states have call predecessors, (40), 29 states have return successors, (36), 29 states have call predecessors, (36), 36 states have call successors, (36) [2023-04-02 04:32:13,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 193 transitions. [2023-04-02 04:32:13,985 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 193 transitions. Word has length 60 [2023-04-02 04:32:13,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:13,985 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 193 transitions. [2023-04-02 04:32:13,986 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 04:32:13,993 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 193 transitions. [2023-04-02 04:32:13,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-04-02 04:32:13,998 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:13,998 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 04:32:13,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:32:13,999 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:13,999 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:13,999 INFO L85 PathProgramCache]: Analyzing trace with hash 165843718, now seen corresponding path program 1 times [2023-04-02 04:32:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:14,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319832858] [2023-04-02 04:32:14,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:14,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:32:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:32:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:14,362 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 04:32:14,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:14,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319832858] [2023-04-02 04:32:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319832858] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:14,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:32:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398836944] [2023-04-02 04:32:14,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:14,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:32:14,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:14,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:32:14,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:32:14,366 INFO L87 Difference]: Start difference. First operand 164 states and 193 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 04:32:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:15,543 INFO L93 Difference]: Finished difference Result 549 states and 680 transitions. [2023-04-02 04:32:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 04:32:15,544 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 04:32:15,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:15,548 INFO L225 Difference]: With dead ends: 549 [2023-04-02 04:32:15,548 INFO L226 Difference]: Without dead ends: 413 [2023-04-02 04:32:15,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-04-02 04:32:15,555 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 613 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:15,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 162 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-02 04:32:15,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-04-02 04:32:15,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 344. [2023-04-02 04:32:15,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 204 states have (on average 1.2794117647058822) internal successors, (261), 233 states have internal predecessors, (261), 80 states have call successors, (80), 65 states have call predecessors, (80), 59 states have return successors, (77), 60 states have call predecessors, (77), 76 states have call successors, (77) [2023-04-02 04:32:15,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 418 transitions. [2023-04-02 04:32:15,641 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 418 transitions. Word has length 65 [2023-04-02 04:32:15,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:15,642 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 418 transitions. [2023-04-02 04:32:15,643 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 04:32:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 418 transitions. [2023-04-02 04:32:15,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 04:32:15,645 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:15,645 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] [2023-04-02 04:32:15,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:32:15,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:15,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:15,646 INFO L85 PathProgramCache]: Analyzing trace with hash 626762705, now seen corresponding path program 1 times [2023-04-02 04:32:15,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:15,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103569919] [2023-04-02 04:32:15,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:15,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:15,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:15,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:15,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:32:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:32:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 04:32:15,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 04:32:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:15,924 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 04:32:15,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:15,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103569919] [2023-04-02 04:32:15,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103569919] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:15,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:15,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:32:15,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205252547] [2023-04-02 04:32:15,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:15,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:32:15,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:15,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:32:15,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:32:15,927 INFO L87 Difference]: Start difference. First operand 344 states and 418 transitions. Second operand has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:32:16,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:16,816 INFO L93 Difference]: Finished difference Result 891 states and 1152 transitions. [2023-04-02 04:32:16,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:32:16,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 70 [2023-04-02 04:32:16,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:16,821 INFO L225 Difference]: With dead ends: 891 [2023-04-02 04:32:16,821 INFO L226 Difference]: Without dead ends: 575 [2023-04-02 04:32:16,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-04-02 04:32:16,828 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 408 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:16,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 83 Invalid, 1267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:32:16,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-04-02 04:32:16,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 507. [2023-04-02 04:32:16,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 507 states, 303 states have (on average 1.2178217821782178) internal successors, (369), 327 states have internal predecessors, (369), 103 states have call successors, (103), 90 states have call predecessors, (103), 100 states have return successors, (133), 104 states have call predecessors, (133), 99 states have call successors, (133) [2023-04-02 04:32:16,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 605 transitions. [2023-04-02 04:32:16,904 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 605 transitions. Word has length 70 [2023-04-02 04:32:16,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:16,904 INFO L495 AbstractCegarLoop]: Abstraction has 507 states and 605 transitions. [2023-04-02 04:32:16,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.666666666666667) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-02 04:32:16,905 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 605 transitions. [2023-04-02 04:32:16,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 04:32:16,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:16,907 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:16,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:32:16,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:16,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:16,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1921976321, now seen corresponding path program 1 times [2023-04-02 04:32:16,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:16,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664137849] [2023-04-02 04:32:16,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:16,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:16,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:16,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:16,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:16,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:17,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:32:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:17,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:32:17,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:17,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:17,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 04:32:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:32:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:17,118 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 04:32:17,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:17,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664137849] [2023-04-02 04:32:17,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664137849] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:17,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:17,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 04:32:17,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446914497] [2023-04-02 04:32:17,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:17,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 04:32:17,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:17,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 04:32:17,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-04-02 04:32:17,121 INFO L87 Difference]: Start difference. First operand 507 states and 605 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:32:17,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:17,934 INFO L93 Difference]: Finished difference Result 1079 states and 1378 transitions. [2023-04-02 04:32:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:32:17,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 113 [2023-04-02 04:32:17,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:17,938 INFO L225 Difference]: With dead ends: 1079 [2023-04-02 04:32:17,938 INFO L226 Difference]: Without dead ends: 600 [2023-04-02 04:32:17,940 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 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 04:32:17,940 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 370 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:17,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 94 Invalid, 1243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:32:17,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-04-02 04:32:18,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 520. [2023-04-02 04:32:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 313 states have (on average 1.2108626198083068) internal successors, (379), 337 states have internal predecessors, (379), 103 states have call successors, (103), 90 states have call predecessors, (103), 103 states have return successors, (137), 106 states have call predecessors, (137), 99 states have call successors, (137) [2023-04-02 04:32:18,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 619 transitions. [2023-04-02 04:32:18,012 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 619 transitions. Word has length 113 [2023-04-02 04:32:18,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:18,013 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 619 transitions. [2023-04-02 04:32:18,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:32:18,013 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 619 transitions. [2023-04-02 04:32:18,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 04:32:18,020 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:18,020 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:18,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:32:18,021 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:18,021 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:18,021 INFO L85 PathProgramCache]: Analyzing trace with hash -433828929, now seen corresponding path program 1 times [2023-04-02 04:32:18,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:18,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938995355] [2023-04-02 04:32:18,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:18,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:18,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:18,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:32:18,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:18,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:32:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:18,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:18,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 04:32:18,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:32:18,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:18,246 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 04:32:18,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:18,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938995355] [2023-04-02 04:32:18,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938995355] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:18,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:18,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 04:32:18,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240669556] [2023-04-02 04:32:18,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:18,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 04:32:18,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:18,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 04:32:18,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:32:18,248 INFO L87 Difference]: Start difference. First operand 520 states and 619 transitions. Second operand has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:32:19,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:19,191 INFO L93 Difference]: Finished difference Result 1102 states and 1402 transitions. [2023-04-02 04:32:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 04:32:19,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 113 [2023-04-02 04:32:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:19,201 INFO L225 Difference]: With dead ends: 1102 [2023-04-02 04:32:19,201 INFO L226 Difference]: Without dead ends: 610 [2023-04-02 04:32:19,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 43 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 04:32:19,209 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 274 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:19,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 118 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:32:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2023-04-02 04:32:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 528. [2023-04-02 04:32:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 319 states have (on average 1.206896551724138) internal successors, (385), 343 states have internal predecessors, (385), 103 states have call successors, (103), 90 states have call predecessors, (103), 105 states have return successors, (139), 108 states have call predecessors, (139), 99 states have call successors, (139) [2023-04-02 04:32:19,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 627 transitions. [2023-04-02 04:32:19,275 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 627 transitions. Word has length 113 [2023-04-02 04:32:19,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:19,276 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 627 transitions. [2023-04-02 04:32:19,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.090909090909091) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 04:32:19,276 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 627 transitions. [2023-04-02 04:32:19,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 04:32:19,278 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:19,279 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:19,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:32:19,279 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:19,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:19,279 INFO L85 PathProgramCache]: Analyzing trace with hash 335341086, now seen corresponding path program 1 times [2023-04-02 04:32:19,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:19,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356666266] [2023-04-02 04:32:19,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:19,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:19,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:19,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:32:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 04:32:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:19,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:19,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 04:32:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 04:32:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 04:32:19,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:19,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356666266] [2023-04-02 04:32:19,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356666266] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:19,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:19,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 04:32:19,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038795101] [2023-04-02 04:32:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:19,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 04:32:19,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:19,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 04:32:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-02 04:32:19,499 INFO L87 Difference]: Start difference. First operand 528 states and 627 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 5 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:32:20,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:20,380 INFO L93 Difference]: Finished difference Result 1603 states and 2056 transitions. [2023-04-02 04:32:20,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 04:32:20,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 5 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) Word has length 113 [2023-04-02 04:32:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:20,387 INFO L225 Difference]: With dead ends: 1603 [2023-04-02 04:32:20,387 INFO L226 Difference]: Without dead ends: 1103 [2023-04-02 04:32:20,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-04-02 04:32:20,389 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 816 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:20,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 110 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-02 04:32:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2023-04-02 04:32:20,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1025. [2023-04-02 04:32:20,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1025 states, 636 states have (on average 1.1933962264150944) internal successors, (759), 682 states have internal predecessors, (759), 198 states have call successors, (198), 179 states have call predecessors, (198), 190 states have return successors, (282), 195 states have call predecessors, (282), 194 states have call successors, (282) [2023-04-02 04:32:20,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1025 states to 1025 states and 1239 transitions. [2023-04-02 04:32:20,504 INFO L78 Accepts]: Start accepts. Automaton has 1025 states and 1239 transitions. Word has length 113 [2023-04-02 04:32:20,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:20,504 INFO L495 AbstractCegarLoop]: Abstraction has 1025 states and 1239 transitions. [2023-04-02 04:32:20,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 5 states have call successors, (25), 6 states have call predecessors, (25), 3 states have return successors, (19), 4 states have call predecessors, (19), 5 states have call successors, (19) [2023-04-02 04:32:20,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1025 states and 1239 transitions. [2023-04-02 04:32:20,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 04:32:20,508 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:20,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:20,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:32:20,508 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:20,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:20,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1133563676, now seen corresponding path program 1 times [2023-04-02 04:32:20,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:20,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683325900] [2023-04-02 04:32:20,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:20,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:20,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:20,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:32:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 04:32:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:20,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:20,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 04:32:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 04:32:20,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:20,904 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 04:32:20,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:20,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683325900] [2023-04-02 04:32:20,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683325900] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:20,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:32:20,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:32:20,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675222834] [2023-04-02 04:32:20,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:20,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:32:20,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:20,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:32:20,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:32:20,907 INFO L87 Difference]: Start difference. First operand 1025 states and 1239 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-04-02 04:32:23,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:23,172 INFO L93 Difference]: Finished difference Result 2982 states and 3873 transitions. [2023-04-02 04:32:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-04-02 04:32:23,172 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 117 [2023-04-02 04:32:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:23,184 INFO L225 Difference]: With dead ends: 2982 [2023-04-02 04:32:23,185 INFO L226 Difference]: Without dead ends: 2187 [2023-04-02 04:32:23,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=431, Invalid=1731, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 04:32:23,191 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 1485 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 993 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 2992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 993 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:23,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 297 Invalid, 2992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [993 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 04:32:23,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-04-02 04:32:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1808. [2023-04-02 04:32:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1808 states, 1117 states have (on average 1.1871083258728738) internal successors, (1326), 1195 states have internal predecessors, (1326), 348 states have call successors, (348), 308 states have call predecessors, (348), 342 states have return successors, (492), 357 states have call predecessors, (492), 344 states have call successors, (492) [2023-04-02 04:32:23,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1808 states to 1808 states and 2166 transitions. [2023-04-02 04:32:23,410 INFO L78 Accepts]: Start accepts. Automaton has 1808 states and 2166 transitions. Word has length 117 [2023-04-02 04:32:23,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:23,411 INFO L495 AbstractCegarLoop]: Abstraction has 1808 states and 2166 transitions. [2023-04-02 04:32:23,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 8 states have internal predecessors, (69), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2023-04-02 04:32:23,412 INFO L276 IsEmpty]: Start isEmpty. Operand 1808 states and 2166 transitions. [2023-04-02 04:32:23,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-04-02 04:32:23,415 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:23,416 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:23,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:32:23,416 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:23,416 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:23,417 INFO L85 PathProgramCache]: Analyzing trace with hash -741610055, now seen corresponding path program 1 times [2023-04-02 04:32:23,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:23,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890003174] [2023-04-02 04:32:23,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:23,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:23,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:23,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:23,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:23,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 04:32:23,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 04:32:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 04:32:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-04-02 04:32:23,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-04-02 04:32:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 22 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 04:32:23,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:23,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890003174] [2023-04-02 04:32:23,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890003174] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:23,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408192432] [2023-04-02 04:32:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:23,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:23,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:23,861 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 04:32:23,865 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 04:32:24,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:24,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 8 conjunts are in the unsatisfiable core [2023-04-02 04:32:24,056 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:32:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:32:24,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:32:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-04-02 04:32:24,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408192432] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:32:24,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:32:24,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-04-02 04:32:24,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360048216] [2023-04-02 04:32:24,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:32:24,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-04-02 04:32:24,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:24,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-04-02 04:32:24,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-04-02 04:32:24,769 INFO L87 Difference]: Start difference. First operand 1808 states and 2166 transitions. Second operand has 23 states, 22 states have (on average 8.409090909090908) internal successors, (185), 14 states have internal predecessors, (185), 8 states have call successors, (73), 11 states have call predecessors, (73), 10 states have return successors, (58), 9 states have call predecessors, (58), 7 states have call successors, (58) [2023-04-02 04:32:28,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:28,325 INFO L93 Difference]: Finished difference Result 3933 states and 4861 transitions. [2023-04-02 04:32:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-04-02 04:32:28,326 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 8.409090909090908) internal successors, (185), 14 states have internal predecessors, (185), 8 states have call successors, (73), 11 states have call predecessors, (73), 10 states have return successors, (58), 9 states have call predecessors, (58), 7 states have call successors, (58) Word has length 195 [2023-04-02 04:32:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:28,340 INFO L225 Difference]: With dead ends: 3933 [2023-04-02 04:32:28,340 INFO L226 Difference]: Without dead ends: 2343 [2023-04-02 04:32:28,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 464 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1750 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1113, Invalid=5049, Unknown=0, NotChecked=0, Total=6162 [2023-04-02 04:32:28,348 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 850 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 3694 mSolverCounterSat, 560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 4254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 3694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:28,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1019 Invalid, 4254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 3694 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-02 04:32:28,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2023-04-02 04:32:28,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 2099. [2023-04-02 04:32:28,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2099 states, 1298 states have (on average 1.1756548536209552) internal successors, (1526), 1406 states have internal predecessors, (1526), 411 states have call successors, (411), 375 states have call predecessors, (411), 389 states have return successors, (521), 387 states have call predecessors, (521), 407 states have call successors, (521) [2023-04-02 04:32:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2099 states to 2099 states and 2458 transitions. [2023-04-02 04:32:28,627 INFO L78 Accepts]: Start accepts. Automaton has 2099 states and 2458 transitions. Word has length 195 [2023-04-02 04:32:28,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:28,627 INFO L495 AbstractCegarLoop]: Abstraction has 2099 states and 2458 transitions. [2023-04-02 04:32:28,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 8.409090909090908) internal successors, (185), 14 states have internal predecessors, (185), 8 states have call successors, (73), 11 states have call predecessors, (73), 10 states have return successors, (58), 9 states have call predecessors, (58), 7 states have call successors, (58) [2023-04-02 04:32:28,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2099 states and 2458 transitions. [2023-04-02 04:32:28,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-04-02 04:32:28,637 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:28,637 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:28,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 04:32:28,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:28,846 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:28,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:28,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1010139229, now seen corresponding path program 1 times [2023-04-02 04:32:28,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:28,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308166311] [2023-04-02 04:32:28,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:28,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:29,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:29,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:29,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:32:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 04:32:29,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:29,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:29,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:32:29,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2023-04-02 04:32:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2023-04-02 04:32:29,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2023-04-02 04:32:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-04-02 04:32:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:29,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2023-04-02 04:32:29,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2023-04-02 04:32:29,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2023-04-02 04:32:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 112 proven. 27 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-04-02 04:32:29,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:29,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308166311] [2023-04-02 04:32:29,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308166311] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864840710] [2023-04-02 04:32:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:29,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:29,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:29,483 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 04:32:29,486 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 04:32:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:29,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:32:29,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:32:29,933 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 301 proven. 4 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-04-02 04:32:29,934 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:32:30,940 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 104 proven. 48 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2023-04-02 04:32:30,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864840710] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:32:30,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:32:30,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12, 13] total 36 [2023-04-02 04:32:30,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092988783] [2023-04-02 04:32:30,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:32:30,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-04-02 04:32:30,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:30,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-04-02 04:32:30,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=144, Invalid=1116, Unknown=0, NotChecked=0, Total=1260 [2023-04-02 04:32:30,944 INFO L87 Difference]: Start difference. First operand 2099 states and 2458 transitions. Second operand has 36 states, 35 states have (on average 7.0) internal successors, (245), 23 states have internal predecessors, (245), 12 states have call successors, (108), 14 states have call predecessors, (108), 18 states have return successors, (100), 17 states have call predecessors, (100), 12 states have call successors, (100) [2023-04-02 04:32:39,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:39,561 INFO L93 Difference]: Finished difference Result 9073 states and 13290 transitions. [2023-04-02 04:32:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-04-02 04:32:39,562 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 7.0) internal successors, (245), 23 states have internal predecessors, (245), 12 states have call successors, (108), 14 states have call predecessors, (108), 18 states have return successors, (100), 17 states have call predecessors, (100), 12 states have call successors, (100) Word has length 371 [2023-04-02 04:32:39,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:39,607 INFO L225 Difference]: With dead ends: 9073 [2023-04-02 04:32:39,607 INFO L226 Difference]: Without dead ends: 7010 [2023-04-02 04:32:39,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 873 SyntacticMatches, 7 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10357 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=4268, Invalid=24462, Unknown=0, NotChecked=0, Total=28730 [2023-04-02 04:32:39,628 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 4304 mSDsluCounter, 3121 mSDsCounter, 0 mSdLazyCounter, 9542 mSolverCounterSat, 3561 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4304 SdHoareTripleChecker+Valid, 3363 SdHoareTripleChecker+Invalid, 13103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3561 IncrementalHoareTripleChecker+Valid, 9542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:39,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4304 Valid, 3363 Invalid, 13103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3561 Valid, 9542 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 04:32:39,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2023-04-02 04:32:40,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 4281. [2023-04-02 04:32:40,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4281 states, 2666 states have (on average 1.1357839459864967) internal successors, (3028), 2861 states have internal predecessors, (3028), 846 states have call successors, (846), 784 states have call predecessors, (846), 768 states have return successors, (1042), 766 states have call predecessors, (1042), 842 states have call successors, (1042) [2023-04-02 04:32:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4281 states to 4281 states and 4916 transitions. [2023-04-02 04:32:40,400 INFO L78 Accepts]: Start accepts. Automaton has 4281 states and 4916 transitions. Word has length 371 [2023-04-02 04:32:40,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:40,400 INFO L495 AbstractCegarLoop]: Abstraction has 4281 states and 4916 transitions. [2023-04-02 04:32:40,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 7.0) internal successors, (245), 23 states have internal predecessors, (245), 12 states have call successors, (108), 14 states have call predecessors, (108), 18 states have return successors, (100), 17 states have call predecessors, (100), 12 states have call successors, (100) [2023-04-02 04:32:40,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4281 states and 4916 transitions. [2023-04-02 04:32:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2023-04-02 04:32:40,416 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:40,416 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, 4, 4, 4, 4, 4, 4, 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, 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] [2023-04-02 04:32:40,425 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 04:32:40,624 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,SelfDestructingSolverStorable9 [2023-04-02 04:32:40,625 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:40,626 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:40,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1300197537, now seen corresponding path program 1 times [2023-04-02 04:32:40,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:40,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126453792] [2023-04-02 04:32:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:40,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:40,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:40,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:32:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:41,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-04-02 04:32:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-04-02 04:32:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:32:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2023-04-02 04:32:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-04-02 04:32:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-04-02 04:32:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-04-02 04:32:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2023-04-02 04:32:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 94 proven. 48 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-04-02 04:32:41,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:41,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126453792] [2023-04-02 04:32:41,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126453792] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:41,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466887447] [2023-04-02 04:32:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:41,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:41,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:41,205 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 04:32:41,208 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 04:32:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:41,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 04:32:41,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:32:41,587 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 280 proven. 18 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-04-02 04:32:41,588 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:32:42,521 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 100 proven. 63 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-04-02 04:32:42,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466887447] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:32:42,522 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:32:42,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 28 [2023-04-02 04:32:42,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076729167] [2023-04-02 04:32:42,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:32:42,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 04:32:42,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:42,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 04:32:42,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2023-04-02 04:32:42,525 INFO L87 Difference]: Start difference. First operand 4281 states and 4916 transitions. Second operand has 28 states, 27 states have (on average 9.703703703703704) internal successors, (262), 18 states have internal predecessors, (262), 8 states have call successors, (106), 11 states have call predecessors, (106), 14 states have return successors, (96), 12 states have call predecessors, (96), 8 states have call successors, (96) [2023-04-02 04:32:45,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:45,270 INFO L93 Difference]: Finished difference Result 8724 states and 10478 transitions. [2023-04-02 04:32:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-04-02 04:32:45,271 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 9.703703703703704) internal successors, (262), 18 states have internal predecessors, (262), 8 states have call successors, (106), 11 states have call predecessors, (106), 14 states have return successors, (96), 12 states have call predecessors, (96), 8 states have call successors, (96) Word has length 351 [2023-04-02 04:32:45,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:45,294 INFO L225 Difference]: With dead ends: 8724 [2023-04-02 04:32:45,294 INFO L226 Difference]: Without dead ends: 4887 [2023-04-02 04:32:45,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 834 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 792 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=695, Invalid=2965, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 04:32:45,305 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 1265 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 3539 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 4422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 3539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:45,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 389 Invalid, 4422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [883 Valid, 3539 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-02 04:32:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4887 states. [2023-04-02 04:32:45,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4887 to 4285. [2023-04-02 04:32:45,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4285 states, 2668 states have (on average 1.1326836581709145) internal successors, (3022), 2865 states have internal predecessors, (3022), 846 states have call successors, (846), 784 states have call predecessors, (846), 770 states have return successors, (1044), 766 states have call predecessors, (1044), 842 states have call successors, (1044) [2023-04-02 04:32:45,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4285 states to 4285 states and 4912 transitions. [2023-04-02 04:32:45,896 INFO L78 Accepts]: Start accepts. Automaton has 4285 states and 4912 transitions. Word has length 351 [2023-04-02 04:32:45,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:45,897 INFO L495 AbstractCegarLoop]: Abstraction has 4285 states and 4912 transitions. [2023-04-02 04:32:45,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 9.703703703703704) internal successors, (262), 18 states have internal predecessors, (262), 8 states have call successors, (106), 11 states have call predecessors, (106), 14 states have return successors, (96), 12 states have call predecessors, (96), 8 states have call successors, (96) [2023-04-02 04:32:45,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4285 states and 4912 transitions. [2023-04-02 04:32:45,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-04-02 04:32:45,913 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:45,913 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, 4, 4, 4, 4, 4, 4, 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, 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] [2023-04-02 04:32:45,924 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 04:32:46,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:46,122 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:46,122 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1602630918, now seen corresponding path program 1 times [2023-04-02 04:32:46,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:46,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837061264] [2023-04-02 04:32:46,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:46,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:46,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:46,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:32:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:46,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:46,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 04:32:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 04:32:46,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:46,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:46,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:32:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-04-02 04:32:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-02 04:32:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:46,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-04-02 04:32:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:46,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:46,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2023-04-02 04:32:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2023-04-02 04:32:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,687 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 100 proven. 3 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2023-04-02 04:32:46,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:46,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837061264] [2023-04-02 04:32:46,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837061264] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:46,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179832926] [2023-04-02 04:32:46,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:46,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:46,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:46,689 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 04:32:46,692 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 04:32:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:46,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-02 04:32:46,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:32:47,169 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 206 proven. 16 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-04-02 04:32:47,169 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:32:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 102 proven. 27 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2023-04-02 04:32:48,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179832926] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:32:48,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:32:48,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 8, 13] total 33 [2023-04-02 04:32:48,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290637301] [2023-04-02 04:32:48,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:32:48,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-04-02 04:32:48,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:48,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-04-02 04:32:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=915, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 04:32:48,152 INFO L87 Difference]: Start difference. First operand 4285 states and 4912 transitions. Second operand has 33 states, 32 states have (on average 7.90625) internal successors, (253), 23 states have internal predecessors, (253), 16 states have call successors, (109), 14 states have call predecessors, (109), 17 states have return successors, (103), 17 states have call predecessors, (103), 16 states have call successors, (103) [2023-04-02 04:32:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:56,063 INFO L93 Difference]: Finished difference Result 12707 states and 16788 transitions. [2023-04-02 04:32:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-04-02 04:32:56,064 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 7.90625) internal successors, (253), 23 states have internal predecessors, (253), 16 states have call successors, (109), 14 states have call predecessors, (109), 17 states have return successors, (103), 17 states have call predecessors, (103), 16 states have call successors, (103) Word has length 352 [2023-04-02 04:32:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:56,111 INFO L225 Difference]: With dead ends: 12707 [2023-04-02 04:32:56,112 INFO L226 Difference]: Without dead ends: 8579 [2023-04-02 04:32:56,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 873 SyntacticMatches, 11 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8516 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=3787, Invalid=20393, Unknown=0, NotChecked=0, Total=24180 [2023-04-02 04:32:56,134 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 3746 mSDsluCounter, 2077 mSDsCounter, 0 mSdLazyCounter, 9790 mSolverCounterSat, 2892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3746 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 12682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2892 IncrementalHoareTripleChecker+Valid, 9790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:56,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3746 Valid, 2201 Invalid, 12682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2892 Valid, 9790 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 04:32:56,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8579 states. [2023-04-02 04:32:56,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8579 to 5293. [2023-04-02 04:32:56,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5293 states, 3298 states have (on average 1.1334141904184354) internal successors, (3738), 3524 states have internal predecessors, (3738), 1067 states have call successors, (1067), 989 states have call predecessors, (1067), 927 states have return successors, (1244), 927 states have call predecessors, (1244), 1063 states have call successors, (1244) [2023-04-02 04:32:56,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5293 states to 5293 states and 6049 transitions. [2023-04-02 04:32:56,866 INFO L78 Accepts]: Start accepts. Automaton has 5293 states and 6049 transitions. Word has length 352 [2023-04-02 04:32:56,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:56,866 INFO L495 AbstractCegarLoop]: Abstraction has 5293 states and 6049 transitions. [2023-04-02 04:32:56,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 7.90625) internal successors, (253), 23 states have internal predecessors, (253), 16 states have call successors, (109), 14 states have call predecessors, (109), 17 states have return successors, (103), 17 states have call predecessors, (103), 16 states have call successors, (103) [2023-04-02 04:32:56,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5293 states and 6049 transitions. [2023-04-02 04:32:56,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2023-04-02 04:32:56,882 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:56,882 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, 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, 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, 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] [2023-04-02 04:32:56,893 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 04:32:57,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:57,093 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:57,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:57,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1768175112, now seen corresponding path program 1 times [2023-04-02 04:32:57,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:57,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415792023] [2023-04-02 04:32:57,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:57,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 04:32:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:57,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:57,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 04:32:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:57,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:57,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:57,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:57,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2023-04-02 04:32:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-02 04:32:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:32:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2023-04-02 04:32:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-04-02 04:32:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:57,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 04:32:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2023-04-02 04:32:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2023-04-02 04:32:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2023-04-02 04:32:57,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2023-04-02 04:32:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 420 [2023-04-02 04:32:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2023-04-02 04:32:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,363 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 88 proven. 12 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-04-02 04:32:57,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:57,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415792023] [2023-04-02 04:32:57,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415792023] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:57,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660865275] [2023-04-02 04:32:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:57,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:57,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:57,365 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 04:32:57,388 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 04:32:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:57,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 04:32:57,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:32:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 631 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2023-04-02 04:32:57,672 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 04:32:57,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [660865275] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:32:57,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 04:32:57,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 11 [2023-04-02 04:32:57,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984950929] [2023-04-02 04:32:57,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:32:57,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:32:57,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:32:57,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:32:57,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:32:57,675 INFO L87 Difference]: Start difference. First operand 5293 states and 6049 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-02 04:32:58,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:32:58,026 INFO L93 Difference]: Finished difference Result 8606 states and 9862 transitions. [2023-04-02 04:32:58,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:32:58,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 435 [2023-04-02 04:32:58,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:32:58,041 INFO L225 Difference]: With dead ends: 8606 [2023-04-02 04:32:58,041 INFO L226 Difference]: Without dead ends: 3377 [2023-04-02 04:32:58,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 593 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:32:58,053 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 44 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 04:32:58,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 420 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 04:32:58,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3377 states. [2023-04-02 04:32:58,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3377 to 3297. [2023-04-02 04:32:58,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3297 states, 2038 states have (on average 1.1246319921491659) internal successors, (2292), 2206 states have internal predecessors, (2292), 675 states have call successors, (675), 628 states have call predecessors, (675), 583 states have return successors, (745), 577 states have call predecessors, (745), 671 states have call successors, (745) [2023-04-02 04:32:58,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3297 states to 3297 states and 3712 transitions. [2023-04-02 04:32:58,415 INFO L78 Accepts]: Start accepts. Automaton has 3297 states and 3712 transitions. Word has length 435 [2023-04-02 04:32:58,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:32:58,415 INFO L495 AbstractCegarLoop]: Abstraction has 3297 states and 3712 transitions. [2023-04-02 04:32:58,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 3 states have call successors, (41), 3 states have call predecessors, (41), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2023-04-02 04:32:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 3297 states and 3712 transitions. [2023-04-02 04:32:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2023-04-02 04:32:58,426 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:32:58,426 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, 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:32:58,435 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 04:32:58,635 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,SelfDestructingSolverStorable12 [2023-04-02 04:32:58,636 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:32:58,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:32:58,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1062372097, now seen corresponding path program 1 times [2023-04-02 04:32:58,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:32:58,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473479436] [2023-04-02 04:32:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:58,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:32:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:32:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:58,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:32:58,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 04:32:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:58,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:32:58,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 04:32:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 04:32:59,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 04:32:59,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 04:32:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:32:59,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2023-04-02 04:32:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-02 04:32:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:32:59,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 04:32:59,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:32:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 04:32:59,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2023-04-02 04:32:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2023-04-02 04:32:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2023-04-02 04:32:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 04:32:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 04:32:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2023-04-02 04:32:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2023-04-02 04:32:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2023-04-02 04:32:59,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-02 04:32:59,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:32:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-04-02 04:32:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:32:59,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:32:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:32:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:32:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2023-04-02 04:32:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-04-02 04:32:59,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,438 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 118 proven. 73 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2023-04-02 04:32:59,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:32:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473479436] [2023-04-02 04:32:59,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473479436] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:32:59,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476586373] [2023-04-02 04:32:59,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:32:59,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:32:59,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:32:59,440 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:32:59,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 04:32:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:32:59,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 42 conjunts are in the unsatisfiable core [2023-04-02 04:32:59,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:33:00,076 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 233 proven. 50 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-04-02 04:33:00,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:33:01,254 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 115 proven. 72 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2023-04-02 04:33:01,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [476586373] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:33:01,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:33:01,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 17] total 40 [2023-04-02 04:33:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588568394] [2023-04-02 04:33:01,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:33:01,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-04-02 04:33:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:33:01,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-04-02 04:33:01,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1345, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 04:33:01,258 INFO L87 Difference]: Start difference. First operand 3297 states and 3712 transitions. Second operand has 40 states, 38 states have (on average 7.921052631578948) internal successors, (301), 28 states have internal predecessors, (301), 19 states have call successors, (125), 17 states have call predecessors, (125), 22 states have return successors, (121), 21 states have call predecessors, (121), 19 states have call successors, (121) [2023-04-02 04:33:11,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:33:11,101 INFO L93 Difference]: Finished difference Result 15973 states and 22832 transitions. [2023-04-02 04:33:11,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2023-04-02 04:33:11,102 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 38 states have (on average 7.921052631578948) internal successors, (301), 28 states have internal predecessors, (301), 19 states have call successors, (125), 17 states have call predecessors, (125), 22 states have return successors, (121), 21 states have call predecessors, (121), 19 states have call successors, (121) Word has length 406 [2023-04-02 04:33:11,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:33:11,106 INFO L225 Difference]: With dead ends: 15973 [2023-04-02 04:33:11,106 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:33:11,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1253 GetRequests, 1030 SyntacticMatches, 22 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15928 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=7650, Invalid=33356, Unknown=0, NotChecked=0, Total=41006 [2023-04-02 04:33:11,146 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 3666 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 7100 mSolverCounterSat, 2619 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3670 SdHoareTripleChecker+Valid, 2860 SdHoareTripleChecker+Invalid, 9719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2619 IncrementalHoareTripleChecker+Valid, 7100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 04:33:11,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3670 Valid, 2860 Invalid, 9719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2619 Valid, 7100 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 04:33:11,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:33:11,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:33:11,147 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 04:33:11,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:33:11,150 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 406 [2023-04-02 04:33:11,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:33:11,150 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:33:11,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 38 states have (on average 7.921052631578948) internal successors, (301), 28 states have internal predecessors, (301), 19 states have call successors, (125), 17 states have call predecessors, (125), 22 states have return successors, (121), 21 states have call predecessors, (121), 19 states have call successors, (121) [2023-04-02 04:33:11,151 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:33:11,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:33:11,154 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:33:11,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 04:33:11,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:33:11,364 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.