/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_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 01:16:56,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 01:16:56,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 01:16:56,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 01:16:56,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 01:16:56,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 01:16:56,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 01:16:56,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 01:16:56,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 01:16:56,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 01:16:56,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 01:16:56,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 01:16:56,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 01:16:56,500 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 01:16:56,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 01:16:56,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 01:16:56,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 01:16:56,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 01:16:56,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 01:16:56,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 01:16:56,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 01:16:56,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 01:16:56,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 01:16:56,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 01:16:56,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 01:16:56,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 01:16:56,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 01:16:56,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 01:16:56,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 01:16:56,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 01:16:56,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 01:16:56,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 01:16:56,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 01:16:56,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 01:16:56,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 01:16:56,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 01:16:56,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 01:16:56,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 01:16:56,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 01:16:56,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 01:16:56,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 01:16:56,517 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 [2023-03-31 01:16:56,532 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 01:16:56,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 01:16:56,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 01:16:56,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 01:16:56,533 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 01:16:56,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 01:16:56,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 01:16:56,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 01:16:56,534 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 01:16:56,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 01:16:56,534 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 01:16:56,534 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 01:16:56,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 01:16:56,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 01:16:56,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:16:56,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 01:16:56,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 01:16:56,537 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 01:16:56,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 01:16:56,537 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 01:16:56,537 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 01:16:56,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 01:16:56,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 01:16:56,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 01:16:56,798 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 01:16:56,799 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 01:16:56,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2023-03-31 01:16:57,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 01:16:58,022 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 01:16:58,023 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product36.cil.c [2023-03-31 01:16:58,036 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee45d986c/28c09e1d7da94f549389310d912659c0/FLAGc703843ff [2023-03-31 01:16:58,052 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee45d986c/28c09e1d7da94f549389310d912659c0 [2023-03-31 01:16:58,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 01:16:58,056 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 01:16:58,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 01:16:58,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 01:16:58,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 01:16:58,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c18f4db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58, skipping insertion in model container [2023-03-31 01:16:58,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,067 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 01:16:58,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 01:16:58,251 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_product36.cil.c[2141,2154] [2023-03-31 01:16:58,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:16:58,375 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 01:16:58,388 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_product36.cil.c[2141,2154] [2023-03-31 01:16:58,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 01:16:58,424 INFO L208 MainTranslator]: Completed translation [2023-03-31 01:16:58,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58 WrapperNode [2023-03-31 01:16:58,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 01:16:58,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 01:16:58,426 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 01:16:58,426 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 01:16:58,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,475 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 01:16:58,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 01:16:58,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 01:16:58,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 01:16:58,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (1/1) ... [2023-03-31 01:16:58,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 01:16:58,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:16:58,521 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) [2023-03-31 01:16:58,535 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 [2023-03-31 01:16:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 01:16:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 01:16:58,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-03-31 01:16:58,557 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 01:16:58,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-03-31 01:16:58,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-03-31 01:16:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 01:16:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 01:16:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 01:16:58,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-03-31 01:16:58,560 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 01:16:58,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-03-31 01:16:58,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 01:16:58,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 01:16:58,796 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 01:16:58,798 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 01:16:59,289 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 01:16:59,295 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 01:16:59,296 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 01:16:59,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:16:59 BoogieIcfgContainer [2023-03-31 01:16:59,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 01:16:59,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 01:16:59,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 01:16:59,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 01:16:59,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 01:16:58" (1/3) ... [2023-03-31 01:16:59,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b93fe77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:16:59, skipping insertion in model container [2023-03-31 01:16:59,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 01:16:58" (2/3) ... [2023-03-31 01:16:59,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b93fe77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 01:16:59, skipping insertion in model container [2023-03-31 01:16:59,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 01:16:59" (3/3) ... [2023-03-31 01:16:59,304 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product36.cil.c [2023-03-31 01:16:59,347 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 01:16:59,348 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 01:16:59,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 01:16:59,387 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;@796ee152, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 01:16:59,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 01:16:59,390 INFO L276 IsEmpty]: Start isEmpty. Operand has 171 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 106 states have internal predecessors, (121), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2023-03-31 01:16:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-03-31 01:16:59,398 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:16:59,398 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] [2023-03-31 01:16:59,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:16:59,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:16:59,403 INFO L85 PathProgramCache]: Analyzing trace with hash -286808083, now seen corresponding path program 1 times [2023-03-31 01:16:59,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:16:59,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722184039] [2023-03-31 01:16:59,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:16:59,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:16:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:16:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:16:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:16:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:16:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:16:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:16:59,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:16:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:16:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-03-31 01:16:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:16:59,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:16:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:16:59,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:16:59,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722184039] [2023-03-31 01:16:59,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722184039] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:16:59,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:16:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-31 01:16:59,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267856664] [2023-03-31 01:16:59,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:16:59,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-31 01:16:59,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:16:59,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-31 01:16:59,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-31 01:16:59,783 INFO L87 Difference]: Start difference. First operand has 171 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 106 states have internal predecessors, (121), 46 states have call successors, (46), 29 states have call predecessors, (46), 29 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) 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) [2023-03-31 01:17:00,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:00,161 INFO L93 Difference]: Finished difference Result 286 states and 369 transitions. [2023-03-31 01:17:00,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-31 01:17:00,163 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 [2023-03-31 01:17:00,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:00,177 INFO L225 Difference]: With dead ends: 286 [2023-03-31 01:17:00,177 INFO L226 Difference]: Without dead ends: 159 [2023-03-31 01:17:00,180 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 [2023-03-31 01:17:00,182 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 159 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:00,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 77 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 01:17:00,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-03-31 01:17:00,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 128. [2023-03-31 01:17:00,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 74 states have (on average 1.2432432432432432) internal successors, (92), 84 states have internal predecessors, (92), 31 states have call successors, (31), 27 states have call predecessors, (31), 22 states have return successors, (26), 23 states have call predecessors, (26), 26 states have call successors, (26) [2023-03-31 01:17:00,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 149 transitions. [2023-03-31 01:17:00,271 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 149 transitions. Word has length 59 [2023-03-31 01:17:00,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:00,272 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 149 transitions. [2023-03-31 01:17:00,272 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) [2023-03-31 01:17:00,272 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 149 transitions. [2023-03-31 01:17:00,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-03-31 01:17:00,274 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:00,274 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] [2023-03-31 01:17:00,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 01:17:00,275 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:00,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:00,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1441569710, now seen corresponding path program 1 times [2023-03-31 01:17:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:00,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32833492] [2023-03-31 01:17:00,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:00,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-03-31 01:17:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-03-31 01:17:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:00,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:00,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32833492] [2023-03-31 01:17:00,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32833492] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:00,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:00,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 01:17:00,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630306449] [2023-03-31 01:17:00,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:00,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 01:17:00,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 01:17:00,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-31 01:17:00,426 INFO L87 Difference]: Start difference. First operand 128 states and 149 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) [2023-03-31 01:17:00,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:00,770 INFO L93 Difference]: Finished difference Result 218 states and 267 transitions. [2023-03-31 01:17:00,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 01:17:00,771 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 [2023-03-31 01:17:00,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:00,772 INFO L225 Difference]: With dead ends: 218 [2023-03-31 01:17:00,772 INFO L226 Difference]: Without dead ends: 149 [2023-03-31 01:17:00,773 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 [2023-03-31 01:17:00,774 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 181 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:00,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 61 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-03-31 01:17:00,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-03-31 01:17:00,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 119. [2023-03-31 01:17:00,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 68 states have (on average 1.25) internal successors, (85), 78 states have internal predecessors, (85), 28 states have call successors, (28), 26 states have call predecessors, (28), 22 states have return successors, (24), 21 states have call predecessors, (24), 24 states have call successors, (24) [2023-03-31 01:17:00,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2023-03-31 01:17:00,797 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 60 [2023-03-31 01:17:00,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:00,798 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2023-03-31 01:17:00,798 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) [2023-03-31 01:17:00,798 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2023-03-31 01:17:00,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-03-31 01:17:00,799 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:00,799 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] [2023-03-31 01:17:00,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 01:17:00,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:00,800 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 962009819, now seen corresponding path program 1 times [2023-03-31 01:17:00,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:00,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174354923] [2023-03-31 01:17:00,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:00,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:00,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:00,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:00,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:17:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-03-31 01:17:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 01:17:00,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:00,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:00,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:00,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174354923] [2023-03-31 01:17:00,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174354923] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:00,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:00,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:17:00,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066037372] [2023-03-31 01:17:00,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:00,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:17:00,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:00,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:17:00,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:17:00,987 INFO L87 Difference]: Start difference. First operand 119 states and 137 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) [2023-03-31 01:17:01,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:01,758 INFO L93 Difference]: Finished difference Result 402 states and 496 transitions. [2023-03-31 01:17:01,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 01:17:01,758 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 [2023-03-31 01:17:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:01,761 INFO L225 Difference]: With dead ends: 402 [2023-03-31 01:17:01,761 INFO L226 Difference]: Without dead ends: 311 [2023-03-31 01:17:01,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-03-31 01:17:01,762 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 317 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:01,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 163 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 875 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-03-31 01:17:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2023-03-31 01:17:01,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 242. [2023-03-31 01:17:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 146 states have (on average 1.2945205479452055) internal successors, (189), 163 states have internal predecessors, (189), 52 states have call successors, (52), 47 states have call predecessors, (52), 43 states have return successors, (49), 44 states have call predecessors, (49), 48 states have call successors, (49) [2023-03-31 01:17:01,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 290 transitions. [2023-03-31 01:17:01,794 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 290 transitions. Word has length 65 [2023-03-31 01:17:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:01,794 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 290 transitions. [2023-03-31 01:17:01,794 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) [2023-03-31 01:17:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 290 transitions. [2023-03-31 01:17:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-03-31 01:17:01,796 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:01,796 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] [2023-03-31 01:17:01,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 01:17:01,796 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:01,796 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:01,796 INFO L85 PathProgramCache]: Analyzing trace with hash 222574838, now seen corresponding path program 1 times [2023-03-31 01:17:01,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:01,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340265100] [2023-03-31 01:17:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:01,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:01,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-03-31 01:17:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-03-31 01:17:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 01:17:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 01:17:01,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 01:17:01,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:01,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340265100] [2023-03-31 01:17:01,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340265100] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:01,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:01,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:17:01,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713332363] [2023-03-31 01:17:01,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:01,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:17:01,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:01,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:17:01,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:17:01,955 INFO L87 Difference]: Start difference. First operand 242 states and 290 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) [2023-03-31 01:17:02,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:02,609 INFO L93 Difference]: Finished difference Result 631 states and 816 transitions. [2023-03-31 01:17:02,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 01:17:02,609 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 [2023-03-31 01:17:02,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:02,612 INFO L225 Difference]: With dead ends: 631 [2023-03-31 01:17:02,612 INFO L226 Difference]: Without dead ends: 417 [2023-03-31 01:17:02,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2023-03-31 01:17:02,614 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 367 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:02,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 85 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:17:02,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2023-03-31 01:17:02,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 353. [2023-03-31 01:17:02,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 214 states have (on average 1.2476635514018692) internal successors, (267), 231 states have internal predecessors, (267), 73 states have call successors, (73), 66 states have call predecessors, (73), 65 states have return successors, (83), 70 states have call predecessors, (83), 69 states have call successors, (83) [2023-03-31 01:17:02,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 423 transitions. [2023-03-31 01:17:02,650 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 423 transitions. Word has length 70 [2023-03-31 01:17:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:02,651 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 423 transitions. [2023-03-31 01:17:02,651 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) [2023-03-31 01:17:02,651 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 423 transitions. [2023-03-31 01:17:02,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 01:17:02,653 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:02,653 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:02,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 01:17:02,653 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:02,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:02,654 INFO L85 PathProgramCache]: Analyzing trace with hash -2062239045, now seen corresponding path program 1 times [2023-03-31 01:17:02,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:02,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380003659] [2023-03-31 01:17:02,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:02,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:02,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:02,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:17:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:02,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:17:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:17:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:17:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:02,766 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:02,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:02,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380003659] [2023-03-31 01:17:02,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380003659] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:02,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:02,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 01:17:02,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656220290] [2023-03-31 01:17:02,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:02,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 01:17:02,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:02,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 01:17:02,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-03-31 01:17:02,768 INFO L87 Difference]: Start difference. First operand 353 states and 423 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:17:03,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:03,334 INFO L93 Difference]: Finished difference Result 767 states and 976 transitions. [2023-03-31 01:17:03,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 01:17:03,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 88 [2023-03-31 01:17:03,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:03,337 INFO L225 Difference]: With dead ends: 767 [2023-03-31 01:17:03,337 INFO L226 Difference]: Without dead ends: 442 [2023-03-31 01:17:03,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-03-31 01:17:03,341 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 141 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:03,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 96 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:17:03,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2023-03-31 01:17:03,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 366. [2023-03-31 01:17:03,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 224 states have (on average 1.2366071428571428) internal successors, (277), 241 states have internal predecessors, (277), 73 states have call successors, (73), 66 states have call predecessors, (73), 68 states have return successors, (86), 72 states have call predecessors, (86), 69 states have call successors, (86) [2023-03-31 01:17:03,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 436 transitions. [2023-03-31 01:17:03,429 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 436 transitions. Word has length 88 [2023-03-31 01:17:03,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:03,429 INFO L495 AbstractCegarLoop]: Abstraction has 366 states and 436 transitions. [2023-03-31 01:17:03,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:17:03,430 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 436 transitions. [2023-03-31 01:17:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 01:17:03,431 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:03,431 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:03,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 01:17:03,432 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:03,432 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:03,432 INFO L85 PathProgramCache]: Analyzing trace with hash -676035651, now seen corresponding path program 1 times [2023-03-31 01:17:03,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:03,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786369895] [2023-03-31 01:17:03,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:03,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:03,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:17:03,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:17:03,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:03,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:17:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:17:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:03,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:03,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786369895] [2023-03-31 01:17:03,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786369895] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:03,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:03,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 01:17:03,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9493750] [2023-03-31 01:17:03,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:03,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 01:17:03,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:03,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 01:17:03,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-03-31 01:17:03,569 INFO L87 Difference]: Start difference. First operand 366 states and 436 transitions. Second operand has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:17:04,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:04,223 INFO L93 Difference]: Finished difference Result 794 states and 1020 transitions. [2023-03-31 01:17:04,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-03-31 01:17:04,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 88 [2023-03-31 01:17:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:04,225 INFO L225 Difference]: With dead ends: 794 [2023-03-31 01:17:04,225 INFO L226 Difference]: Without dead ends: 456 [2023-03-31 01:17:04,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-03-31 01:17:04,227 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 269 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:04,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 118 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-03-31 01:17:04,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-03-31 01:17:04,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 374. [2023-03-31 01:17:04,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 230 states have (on average 1.2304347826086957) internal successors, (283), 247 states have internal predecessors, (283), 73 states have call successors, (73), 66 states have call predecessors, (73), 70 states have return successors, (88), 74 states have call predecessors, (88), 69 states have call successors, (88) [2023-03-31 01:17:04,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2023-03-31 01:17:04,256 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 88 [2023-03-31 01:17:04,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:04,256 INFO L495 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2023-03-31 01:17:04,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2023-03-31 01:17:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2023-03-31 01:17:04,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 01:17:04,257 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:04,257 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:04,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 01:17:04,257 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:04,258 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:04,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1435254718, now seen corresponding path program 1 times [2023-03-31 01:17:04,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:04,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275481015] [2023-03-31 01:17:04,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:04,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-03-31 01:17:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-03-31 01:17:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-03-31 01:17:04,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 01:17:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:04,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:04,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275481015] [2023-03-31 01:17:04,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275481015] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:04,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:04,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 01:17:04,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24145985] [2023-03-31 01:17:04,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:04,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 01:17:04,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:04,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 01:17:04,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 01:17:04,399 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 5 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-03-31 01:17:04,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:04,955 INFO L93 Difference]: Finished difference Result 1249 states and 1613 transitions. [2023-03-31 01:17:04,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-03-31 01:17:04,955 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 5 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) Word has length 88 [2023-03-31 01:17:04,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:04,959 INFO L225 Difference]: With dead ends: 1249 [2023-03-31 01:17:04,959 INFO L226 Difference]: Without dead ends: 903 [2023-03-31 01:17:04,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2023-03-31 01:17:04,961 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 526 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:04,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 109 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-03-31 01:17:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2023-03-31 01:17:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 831. [2023-03-31 01:17:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 523 states have (on average 1.2103250478011471) internal successors, (633), 562 states have internal predecessors, (633), 160 states have call successors, (160), 147 states have call predecessors, (160), 147 states have return successors, (209), 153 states have call predecessors, (209), 156 states have call successors, (209) [2023-03-31 01:17:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1002 transitions. [2023-03-31 01:17:05,023 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1002 transitions. Word has length 88 [2023-03-31 01:17:05,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:05,023 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1002 transitions. [2023-03-31 01:17:05,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 4 states have internal predecessors, (52), 5 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 4 states have call predecessors, (14), 5 states have call successors, (14) [2023-03-31 01:17:05,023 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1002 transitions. [2023-03-31 01:17:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 01:17:05,024 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:05,024 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:05,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 01:17:05,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:05,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:05,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1322355992, now seen corresponding path program 1 times [2023-03-31 01:17:05,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:05,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993961105] [2023-03-31 01:17:05,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:05,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:05,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-03-31 01:17:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-03-31 01:17:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:05,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:05,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 01:17:05,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-03-31 01:17:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:05,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-03-31 01:17:05,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:05,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993961105] [2023-03-31 01:17:05,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993961105] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:05,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 01:17:05,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 01:17:05,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131197537] [2023-03-31 01:17:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:05,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 01:17:05,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:05,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 01:17:05,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-03-31 01:17:05,243 INFO L87 Difference]: Start difference. First operand 831 states and 1002 transitions. Second operand has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 8 states have internal predecessors, (54), 6 states have call successors, (21), 8 states have call predecessors, (21), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-03-31 01:17:06,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:06,917 INFO L93 Difference]: Finished difference Result 2416 states and 3145 transitions. [2023-03-31 01:17:06,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-03-31 01:17:06,918 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 8 states have internal predecessors, (54), 6 states have call successors, (21), 8 states have call predecessors, (21), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 92 [2023-03-31 01:17:06,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:06,924 INFO L225 Difference]: With dead ends: 2416 [2023-03-31 01:17:06,924 INFO L226 Difference]: Without dead ends: 1795 [2023-03-31 01:17:06,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 629 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=431, Invalid=1731, Unknown=0, NotChecked=0, Total=2162 [2023-03-31 01:17:06,927 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 834 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 1529 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:06,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 290 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1529 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-03-31 01:17:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2023-03-31 01:17:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1446. [2023-03-31 01:17:07,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 905 states have (on average 1.2022099447513812) internal successors, (1088), 969 states have internal predecessors, (1088), 278 states have call successors, (278), 248 states have call predecessors, (278), 262 states have return successors, (372), 281 states have call predecessors, (372), 274 states have call successors, (372) [2023-03-31 01:17:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1738 transitions. [2023-03-31 01:17:07,068 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1738 transitions. Word has length 92 [2023-03-31 01:17:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:07,070 INFO L495 AbstractCegarLoop]: Abstraction has 1446 states and 1738 transitions. [2023-03-31 01:17:07,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.153846153846154) internal successors, (54), 8 states have internal predecessors, (54), 6 states have call successors, (21), 8 states have call predecessors, (21), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2023-03-31 01:17:07,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1738 transitions. [2023-03-31 01:17:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-03-31 01:17:07,073 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:07,073 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:07,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-03-31 01:17:07,073 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:07,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:07,073 INFO L85 PathProgramCache]: Analyzing trace with hash -818726012, now seen corresponding path program 1 times [2023-03-31 01:17:07,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:07,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662112308] [2023-03-31 01:17:07,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:07,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:07,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:17:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:07,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:07,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-03-31 01:17:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:07,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 01:17:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-03-31 01:17:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:07,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-03-31 01:17:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 01:17:07,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,339 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-03-31 01:17:07,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:07,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662112308] [2023-03-31 01:17:07,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662112308] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:17:07,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2117549222] [2023-03-31 01:17:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:07,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:17:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:17:07,361 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) [2023-03-31 01:17:07,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 01:17:07,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:07,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 8 conjunts are in the unsatisfiable core [2023-03-31 01:17:07,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:17:07,793 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 01:17:07,793 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:17:08,140 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 23 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-03-31 01:17:08,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2117549222] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:17:08,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:17:08,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 23 [2023-03-31 01:17:08,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534781435] [2023-03-31 01:17:08,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:17:08,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-03-31 01:17:08,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:08,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-03-31 01:17:08,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-03-31 01:17:08,144 INFO L87 Difference]: Start difference. First operand 1446 states and 1738 transitions. Second operand has 23 states, 22 states have (on average 5.909090909090909) internal successors, (130), 14 states have internal predecessors, (130), 8 states have call successors, (52), 11 states have call predecessors, (52), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) [2023-03-31 01:17:10,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:10,711 INFO L93 Difference]: Finished difference Result 2969 states and 3681 transitions. [2023-03-31 01:17:10,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2023-03-31 01:17:10,711 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 5.909090909090909) internal successors, (130), 14 states have internal predecessors, (130), 8 states have call successors, (52), 11 states have call predecessors, (52), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) Word has length 136 [2023-03-31 01:17:10,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:10,718 INFO L225 Difference]: With dead ends: 2969 [2023-03-31 01:17:10,719 INFO L226 Difference]: Without dead ends: 1721 [2023-03-31 01:17:10,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 394 GetRequests, 319 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=973, Invalid=4429, Unknown=0, NotChecked=0, Total=5402 [2023-03-31 01:17:10,725 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 845 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 601 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 853 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 3493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 601 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:10,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [853 Valid, 806 Invalid, 3493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [601 Valid, 2892 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-03-31 01:17:10,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2023-03-31 01:17:10,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1532. [2023-03-31 01:17:10,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 959 states have (on average 1.1856100104275287) internal successors, (1137), 1037 states have internal predecessors, (1137), 297 states have call successors, (297), 275 states have call predecessors, (297), 275 states have return successors, (353), 278 states have call predecessors, (353), 293 states have call successors, (353) [2023-03-31 01:17:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1787 transitions. [2023-03-31 01:17:10,883 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1787 transitions. Word has length 136 [2023-03-31 01:17:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:10,884 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1787 transitions. [2023-03-31 01:17:10,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 5.909090909090909) internal successors, (130), 14 states have internal predecessors, (130), 8 states have call successors, (52), 11 states have call predecessors, (52), 10 states have return successors, (42), 9 states have call predecessors, (42), 7 states have call successors, (42) [2023-03-31 01:17:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1787 transitions. [2023-03-31 01:17:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-03-31 01:17:10,889 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:10,889 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 01:17:10,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 01:17:11,095 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 [2023-03-31 01:17:11,096 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:11,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:11,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1374396234, now seen corresponding path program 1 times [2023-03-31 01:17:11,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:11,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369705284] [2023-03-31 01:17:11,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:11,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:17:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 01:17:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 01:17:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-03-31 01:17:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-03-31 01:17:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2023-03-31 01:17:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:11,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2023-03-31 01:17:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2023-03-31 01:17:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 81 proven. 31 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2023-03-31 01:17:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369705284] [2023-03-31 01:17:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369705284] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:17:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008283020] [2023-03-31 01:17:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:11,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:17:11,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:17:11,461 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) [2023-03-31 01:17:11,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 01:17:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:11,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-31 01:17:11,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:17:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-03-31 01:17:11,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 01:17:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008283020] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 01:17:11,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-03-31 01:17:11,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [16] total 17 [2023-03-31 01:17:11,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136528007] [2023-03-31 01:17:11,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 01:17:11,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-31 01:17:11,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:11,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-31 01:17:11,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-03-31 01:17:11,651 INFO L87 Difference]: Start difference. First operand 1532 states and 1787 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-03-31 01:17:11,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:11,739 INFO L93 Difference]: Finished difference Result 2467 states and 2888 transitions. [2023-03-31 01:17:11,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-31 01:17:11,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 244 [2023-03-31 01:17:11,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:11,744 INFO L225 Difference]: With dead ends: 2467 [2023-03-31 01:17:11,744 INFO L226 Difference]: Without dead ends: 986 [2023-03-31 01:17:11,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2023-03-31 01:17:11,747 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 44 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 309 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 [2023-03-31 01:17:11,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 309 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 01:17:11,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2023-03-31 01:17:11,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 961. [2023-03-31 01:17:11,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 595 states have (on average 1.1747899159663866) internal successors, (699), 650 states have internal predecessors, (699), 192 states have call successors, (192), 179 states have call predecessors, (192), 173 states have return successors, (209), 173 states have call predecessors, (209), 188 states have call successors, (209) [2023-03-31 01:17:11,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1100 transitions. [2023-03-31 01:17:11,859 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1100 transitions. Word has length 244 [2023-03-31 01:17:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:11,859 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1100 transitions. [2023-03-31 01:17:11,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-03-31 01:17:11,859 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1100 transitions. [2023-03-31 01:17:11,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-03-31 01:17:11,862 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:11,862 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, 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] [2023-03-31 01:17:11,870 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-31 01:17:12,067 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 [2023-03-31 01:17:12,068 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:12,068 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:12,069 INFO L85 PathProgramCache]: Analyzing trace with hash -883974277, now seen corresponding path program 1 times [2023-03-31 01:17:12,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:12,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906901932] [2023-03-31 01:17:12,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:12,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:12,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:17:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:12,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 01:17:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-03-31 01:17:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:12,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:12,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-03-31 01:17:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-03-31 01:17:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-03-31 01:17:12,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-03-31 01:17:12,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-03-31 01:17:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2023-03-31 01:17:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:12,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2023-03-31 01:17:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2023-03-31 01:17:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,426 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 108 proven. 50 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2023-03-31 01:17:12,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906901932] [2023-03-31 01:17:12,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906901932] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:17:12,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630722766] [2023-03-31 01:17:12,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:12,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:17:12,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:17:12,443 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) [2023-03-31 01:17:12,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-31 01:17:12,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:12,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 22 conjunts are in the unsatisfiable core [2023-03-31 01:17:12,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:17:12,824 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 248 proven. 4 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2023-03-31 01:17:12,824 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:17:13,565 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 105 proven. 51 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2023-03-31 01:17:13,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630722766] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:17:13,565 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:17:13,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 13] total 35 [2023-03-31 01:17:13,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352977389] [2023-03-31 01:17:13,565 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:17:13,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-03-31 01:17:13,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:13,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-03-31 01:17:13,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1031, Unknown=0, NotChecked=0, Total=1190 [2023-03-31 01:17:13,568 INFO L87 Difference]: Start difference. First operand 961 states and 1100 transitions. Second operand has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 24 states have internal predecessors, (211), 13 states have call successors, (93), 13 states have call predecessors, (93), 18 states have return successors, (84), 18 states have call predecessors, (84), 13 states have call successors, (84) [2023-03-31 01:17:16,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:16,799 INFO L93 Difference]: Finished difference Result 2784 states and 3720 transitions. [2023-03-31 01:17:16,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-03-31 01:17:16,800 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 24 states have internal predecessors, (211), 13 states have call successors, (93), 13 states have call predecessors, (93), 18 states have return successors, (84), 18 states have call predecessors, (84), 13 states have call successors, (84) Word has length 283 [2023-03-31 01:17:16,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:16,808 INFO L225 Difference]: With dead ends: 2784 [2023-03-31 01:17:16,808 INFO L226 Difference]: Without dead ends: 1874 [2023-03-31 01:17:16,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 769 GetRequests, 670 SyntacticMatches, 7 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2510 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1504, Invalid=7238, Unknown=0, NotChecked=0, Total=8742 [2023-03-31 01:17:16,812 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2328 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 3551 mSolverCounterSat, 1772 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1772 IncrementalHoareTripleChecker+Valid, 3551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:16,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2328 Valid, 1215 Invalid, 5323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1772 Valid, 3551 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-03-31 01:17:16,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2023-03-31 01:17:16,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1144. [2023-03-31 01:17:16,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 706 states have (on average 1.1628895184135977) internal successors, (821), 768 states have internal predecessors, (821), 235 states have call successors, (235), 218 states have call predecessors, (235), 202 states have return successors, (257), 205 states have call predecessors, (257), 231 states have call successors, (257) [2023-03-31 01:17:16,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 1313 transitions. [2023-03-31 01:17:16,960 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 1313 transitions. Word has length 283 [2023-03-31 01:17:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:16,960 INFO L495 AbstractCegarLoop]: Abstraction has 1144 states and 1313 transitions. [2023-03-31 01:17:16,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.205882352941177) internal successors, (211), 24 states have internal predecessors, (211), 13 states have call successors, (93), 13 states have call predecessors, (93), 18 states have return successors, (84), 18 states have call predecessors, (84), 13 states have call successors, (84) [2023-03-31 01:17:16,960 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 1313 transitions. [2023-03-31 01:17:16,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2023-03-31 01:17:16,966 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:16,966 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 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] [2023-03-31 01:17:16,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-31 01:17:17,171 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 [2023-03-31 01:17:17,172 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:17,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:17,172 INFO L85 PathProgramCache]: Analyzing trace with hash 150203411, now seen corresponding path program 1 times [2023-03-31 01:17:17,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:17,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61418107] [2023-03-31 01:17:17,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:17,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:17,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:17:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:17,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:17,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:17,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 01:17:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:17,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:17:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-03-31 01:17:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:17:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-03-31 01:17:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-03-31 01:17:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2023-03-31 01:17:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2023-03-31 01:17:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2023-03-31 01:17:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2023-03-31 01:17:17,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-03-31 01:17:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-03-31 01:17:17,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-03-31 01:17:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 121 proven. 46 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-03-31 01:17:17,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:17,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61418107] [2023-03-31 01:17:17,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61418107] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:17:17,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541023514] [2023-03-31 01:17:17,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:17,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:17:17,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:17:17,544 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) [2023-03-31 01:17:17,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-31 01:17:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:17,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-31 01:17:17,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:17:17,865 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 288 proven. 14 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-03-31 01:17:17,866 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:17:18,352 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 123 proven. 56 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2023-03-31 01:17:18,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541023514] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:17:18,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:17:18,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9, 9] total 29 [2023-03-31 01:17:18,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792118469] [2023-03-31 01:17:18,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:17:18,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-03-31 01:17:18,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:18,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-03-31 01:17:18,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2023-03-31 01:17:18,363 INFO L87 Difference]: Start difference. First operand 1144 states and 1313 transitions. Second operand has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 18 states have internal predecessors, (204), 8 states have call successors, (84), 12 states have call predecessors, (84), 14 states have return successors, (73), 12 states have call predecessors, (73), 8 states have call successors, (73) [2023-03-31 01:17:19,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:19,734 INFO L93 Difference]: Finished difference Result 2262 states and 2697 transitions. [2023-03-31 01:17:19,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-03-31 01:17:19,735 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 18 states have internal predecessors, (204), 8 states have call successors, (84), 12 states have call predecessors, (84), 14 states have return successors, (73), 12 states have call predecessors, (73), 8 states have call successors, (73) Word has length 299 [2023-03-31 01:17:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:19,741 INFO L225 Difference]: With dead ends: 2262 [2023-03-31 01:17:19,741 INFO L226 Difference]: Without dead ends: 1278 [2023-03-31 01:17:19,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 760 GetRequests, 701 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=675, Invalid=2865, Unknown=0, NotChecked=0, Total=3540 [2023-03-31 01:17:19,745 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 789 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 2074 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 2074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:19,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 332 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 2074 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-03-31 01:17:19,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2023-03-31 01:17:19,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1146. [2023-03-31 01:17:19,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 707 states have (on average 1.1584158415841583) internal successors, (819), 770 states have internal predecessors, (819), 235 states have call successors, (235), 218 states have call predecessors, (235), 203 states have return successors, (258), 205 states have call predecessors, (258), 231 states have call successors, (258) [2023-03-31 01:17:19,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1312 transitions. [2023-03-31 01:17:19,847 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1312 transitions. Word has length 299 [2023-03-31 01:17:19,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:19,848 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1312 transitions. [2023-03-31 01:17:19,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 7.285714285714286) internal successors, (204), 18 states have internal predecessors, (204), 8 states have call successors, (84), 12 states have call predecessors, (84), 14 states have return successors, (73), 12 states have call predecessors, (73), 8 states have call successors, (73) [2023-03-31 01:17:19,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1312 transitions. [2023-03-31 01:17:19,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2023-03-31 01:17:19,852 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 01:17:19,852 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 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, 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] [2023-03-31 01:17:19,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-31 01:17:20,057 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 [2023-03-31 01:17:20,058 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 01:17:20,058 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 01:17:20,058 INFO L85 PathProgramCache]: Analyzing trace with hash -712415531, now seen corresponding path program 1 times [2023-03-31 01:17:20,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 01:17:20,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061088694] [2023-03-31 01:17:20,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:20,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 01:17:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 01:17:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 01:17:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 01:17:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-03-31 01:17:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-03-31 01:17:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-03-31 01:17:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-03-31 01:17:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:17:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-03-31 01:17:20,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 01:17:20,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-31 01:17:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 01:17:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 01:17:20,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-03-31 01:17:20,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2023-03-31 01:17:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2023-03-31 01:17:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 01:17:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2023-03-31 01:17:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-03-31 01:17:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-03-31 01:17:20,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 01:17:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2023-03-31 01:17:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-03-31 01:17:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 01:17:20,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-03-31 01:17:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2023-03-31 01:17:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2023-03-31 01:17:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 109 proven. 6 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2023-03-31 01:17:20,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 01:17:20,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061088694] [2023-03-31 01:17:20,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061088694] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 01:17:20,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689730132] [2023-03-31 01:17:20,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 01:17:20,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 01:17:20,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 01:17:20,377 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) [2023-03-31 01:17:20,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-31 01:17:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 01:17:20,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 32 conjunts are in the unsatisfiable core [2023-03-31 01:17:20,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 01:17:20,766 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 252 proven. 12 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-03-31 01:17:20,766 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 01:17:21,353 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 147 proven. 47 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2023-03-31 01:17:21,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689730132] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 01:17:21,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 01:17:21,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 17] total 37 [2023-03-31 01:17:21,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832505389] [2023-03-31 01:17:21,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 01:17:21,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-03-31 01:17:21,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 01:17:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-03-31 01:17:21,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1146, Unknown=0, NotChecked=0, Total=1332 [2023-03-31 01:17:21,358 INFO L87 Difference]: Start difference. First operand 1146 states and 1312 transitions. Second operand has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 26 states have internal predecessors, (224), 14 states have call successors, (95), 15 states have call predecessors, (95), 19 states have return successors, (92), 18 states have call predecessors, (92), 14 states have call successors, (92) [2023-03-31 01:17:25,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 01:17:25,060 INFO L93 Difference]: Finished difference Result 2682 states and 3462 transitions. [2023-03-31 01:17:25,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2023-03-31 01:17:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 26 states have internal predecessors, (224), 14 states have call successors, (95), 15 states have call predecessors, (95), 19 states have return successors, (92), 18 states have call predecessors, (92), 14 states have call successors, (92) Word has length 301 [2023-03-31 01:17:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 01:17:25,074 INFO L225 Difference]: With dead ends: 2682 [2023-03-31 01:17:25,074 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 01:17:25,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 704 SyntacticMatches, 10 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3174 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2134, Invalid=8578, Unknown=0, NotChecked=0, Total=10712 [2023-03-31 01:17:25,080 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 1518 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 4408 mSolverCounterSat, 1079 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 5487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 4408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-03-31 01:17:25,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 892 Invalid, 5487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1079 Valid, 4408 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-03-31 01:17:25,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 01:17:25,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 01:17:25,081 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) [2023-03-31 01:17:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 01:17:25,081 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 301 [2023-03-31 01:17:25,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 01:17:25,081 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 01:17:25,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.222222222222222) internal successors, (224), 26 states have internal predecessors, (224), 14 states have call successors, (95), 15 states have call predecessors, (95), 19 states have return successors, (92), 18 states have call predecessors, (92), 14 states have call successors, (92) [2023-03-31 01:17:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 01:17:25,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 01:17:25,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 01:17:25,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-03-31 01:17:25,291 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 [2023-03-31 01:17:25,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.