/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_spec3_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 04:17:02,297 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 04:17:02,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 04:17:02,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 04:17:02,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 04:17:02,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 04:17:02,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 04:17:02,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 04:17:02,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 04:17:02,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 04:17:02,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 04:17:02,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 04:17:02,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 04:17:02,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 04:17:02,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 04:17:02,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 04:17:02,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 04:17:02,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 04:17:02,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 04:17:02,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 04:17:02,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 04:17:02,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 04:17:02,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 04:17:02,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 04:17:02,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 04:17:02,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 04:17:02,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 04:17:02,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 04:17:02,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 04:17:02,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 04:17:02,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 04:17:02,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 04:17:02,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 04:17:02,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 04:17:02,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 04:17:02,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 04:17:02,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 04:17:02,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 04:17:02,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 04:17:02,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 04:17:02,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 04:17:02,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 04:17:02,400 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 04:17:02,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 04:17:02,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 04:17:02,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 04:17:02,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 04:17:02,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 04:17:02,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 04:17:02,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 04:17:02,402 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 04:17:02,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 04:17:02,403 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 04:17:02,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 04:17:02,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 04:17:02,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 04:17:02,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 04:17:02,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:17:02,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 04:17:02,405 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 04:17:02,406 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 04:17:02,406 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 04:17:02,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 04:17:02,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 04:17:02,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 04:17:02,603 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 04:17:02,604 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 04:17:02,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2023-04-02 04:17:03,766 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 04:17:03,935 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 04:17:03,937 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product37.cil.c [2023-04-02 04:17:03,947 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e9d014c/06a5ed3606394fffb0564c2aec143f3b/FLAG9886627f8 [2023-04-02 04:17:03,959 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f9e9d014c/06a5ed3606394fffb0564c2aec143f3b [2023-04-02 04:17:03,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 04:17:03,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 04:17:03,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 04:17:03,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 04:17:03,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 04:17:03,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:17:03" (1/1) ... [2023-04-02 04:17:03,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e069845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:03, skipping insertion in model container [2023-04-02 04:17:03,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 04:17:03" (1/1) ... [2023-04-02 04:17:03,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 04:17:04,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 04:17:04,177 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_spec3_product37.cil.c[17206,17219] [2023-04-02 04:17:04,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:17:04,190 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 04:17:04,228 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_spec3_product37.cil.c[17206,17219] [2023-04-02 04:17:04,230 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 04:17:04,243 INFO L208 MainTranslator]: Completed translation [2023-04-02 04:17:04,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04 WrapperNode [2023-04-02 04:17:04,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 04:17:04,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 04:17:04,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 04:17:04,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 04:17:04,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 04:17:04,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 04:17:04,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 04:17:04,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 04:17:04,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (1/1) ... [2023-04-02 04:17:04,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 04:17:04,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:17:04,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 04:17:04,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 04:17:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 04:17:04,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 04:17:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 04:17:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 04:17:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 04:17:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 04:17:04,434 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 04:17:04,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2023-04-02 04:17:04,436 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 04:17:04,437 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 04:17:04,438 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-04-02 04:17:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-04-02 04:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 04:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 04:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 04:17:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 04:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 04:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 04:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 04:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 04:17:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 04:17:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-04-02 04:17:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2023-04-02 04:17:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 04:17:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 04:17:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 04:17:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 04:17:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 04:17:04,642 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 04:17:04,646 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 04:17:05,192 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 04:17:05,199 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 04:17:05,199 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-02 04:17:05,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:17:05 BoogieIcfgContainer [2023-04-02 04:17:05,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 04:17:05,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 04:17:05,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 04:17:05,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 04:17:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 04:17:03" (1/3) ... [2023-04-02 04:17:05,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162a85ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:17:05, skipping insertion in model container [2023-04-02 04:17:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 04:17:04" (2/3) ... [2023-04-02 04:17:05,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162a85ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 04:17:05, skipping insertion in model container [2023-04-02 04:17:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 04:17:05" (3/3) ... [2023-04-02 04:17:05,206 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2023-04-02 04:17:05,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 04:17:05,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 04:17:05,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 04:17:05,259 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;@5ebef91, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 04:17:05,259 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 04:17:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 172 states, 95 states have (on average 1.305263157894737) internal successors, (124), 107 states have internal predecessors, (124), 46 states have call successors, (46), 28 states have call predecessors, (46), 28 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) [2023-04-02 04:17:05,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-04-02 04:17:05,269 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:05,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:05,270 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:05,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1589130854, now seen corresponding path program 1 times [2023-04-02 04:17:05,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:05,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595734081] [2023-04-02 04:17:05,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:05,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:05,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:05,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 04:17:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 04:17:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 04:17:05,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:05,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:05,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:05,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595734081] [2023-04-02 04:17:05,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595734081] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:05,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:05,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 04:17:05,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394733526] [2023-04-02 04:17:05,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:05,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 04:17:05,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:05,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 04:17:05,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:17:05,489 INFO L87 Difference]: Start difference. First operand has 172 states, 95 states have (on average 1.305263157894737) internal successors, (124), 107 states have internal predecessors, (124), 46 states have call successors, (46), 28 states have call predecessors, (46), 28 states have return successors, (46), 42 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:05,928 INFO L93 Difference]: Finished difference Result 299 states and 392 transitions. [2023-04-02 04:17:05,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 04:17:05,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 52 [2023-04-02 04:17:05,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:05,943 INFO L225 Difference]: With dead ends: 299 [2023-04-02 04:17:05,943 INFO L226 Difference]: Without dead ends: 161 [2023-04-02 04:17:05,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 04:17:05,951 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 97 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:05,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 20 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-04-02 04:17:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 129. [2023-04-02 04:17:06,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 76 states have (on average 1.25) internal successors, (95), 85 states have internal predecessors, (95), 31 states have call successors, (31), 26 states have call predecessors, (31), 21 states have return successors, (26), 22 states have call predecessors, (26), 26 states have call successors, (26) [2023-04-02 04:17:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2023-04-02 04:17:06,012 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2023-04-02 04:17:06,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:06,012 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2023-04-02 04:17:06,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2023-04-02 04:17:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 04:17:06,018 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:06,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 04:17:06,018 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:06,019 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:06,019 INFO L85 PathProgramCache]: Analyzing trace with hash 105756752, now seen corresponding path program 1 times [2023-04-02 04:17:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:06,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279693556] [2023-04-02 04:17:06,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 04:17:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 04:17:06,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:06,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:06,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279693556] [2023-04-02 04:17:06,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279693556] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:06,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:06,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 04:17:06,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925478417] [2023-04-02 04:17:06,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:06,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 04:17:06,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:06,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 04:17:06,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 04:17:06,160 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:06,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:06,420 INFO L93 Difference]: Finished difference Result 232 states and 283 transitions. [2023-04-02 04:17:06,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 04:17:06,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 53 [2023-04-02 04:17:06,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:06,422 INFO L225 Difference]: With dead ends: 232 [2023-04-02 04:17:06,422 INFO L226 Difference]: Without dead ends: 145 [2023-04-02 04:17:06,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 04:17:06,424 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 107 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:06,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 27 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 04:17:06,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-04-02 04:17:06,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 120. [2023-04-02 04:17:06,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 79 states have internal predecessors, (88), 28 states have call successors, (28), 25 states have call predecessors, (28), 21 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:17:06,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2023-04-02 04:17:06,458 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2023-04-02 04:17:06,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:06,458 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2023-04-02 04:17:06,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-02 04:17:06,459 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2023-04-02 04:17:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-02 04:17:06,460 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:06,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:06,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 04:17:06,461 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:06,462 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:06,462 INFO L85 PathProgramCache]: Analyzing trace with hash 933386261, now seen corresponding path program 1 times [2023-04-02 04:17:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:06,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659668806] [2023-04-02 04:17:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:06,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:06,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:06,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 04:17:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 04:17:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 04:17:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:06,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:06,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:06,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659668806] [2023-04-02 04:17:06,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659668806] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:06,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:06,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:06,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187053765] [2023-04-02 04:17:06,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:06,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:06,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:06,627 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:17:07,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:07,068 INFO L93 Difference]: Finished difference Result 241 states and 297 transitions. [2023-04-02 04:17:07,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-02 04:17:07,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 57 [2023-04-02 04:17:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:07,071 INFO L225 Difference]: With dead ends: 241 [2023-04-02 04:17:07,071 INFO L226 Difference]: Without dead ends: 145 [2023-04-02 04:17:07,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:07,072 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 278 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:07,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 36 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-04-02 04:17:07,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 120. [2023-04-02 04:17:07,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 78 states have internal predecessors, (87), 28 states have call successors, (28), 25 states have call predecessors, (28), 21 states have return successors, (24), 20 states have call predecessors, (24), 24 states have call successors, (24) [2023-04-02 04:17:07,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2023-04-02 04:17:07,089 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 57 [2023-04-02 04:17:07,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:07,090 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2023-04-02 04:17:07,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 6 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-04-02 04:17:07,090 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2023-04-02 04:17:07,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-04-02 04:17:07,091 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:07,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:07,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 04:17:07,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:07,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:07,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2125802031, now seen corresponding path program 1 times [2023-04-02 04:17:07,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:07,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616506179] [2023-04-02 04:17:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:07,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 04:17:07,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 04:17:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 04:17:07,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 04:17:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:07,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:07,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:07,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616506179] [2023-04-02 04:17:07,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616506179] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:07,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:07,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-02 04:17:07,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262898321] [2023-04-02 04:17:07,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:07,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 04:17:07,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:07,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 04:17:07,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-02 04:17:07,265 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-02 04:17:07,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:07,781 INFO L93 Difference]: Finished difference Result 345 states and 427 transitions. [2023-04-02 04:17:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 04:17:07,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 70 [2023-04-02 04:17:07,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:07,786 INFO L225 Difference]: With dead ends: 345 [2023-04-02 04:17:07,786 INFO L226 Difference]: Without dead ends: 249 [2023-04-02 04:17:07,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2023-04-02 04:17:07,795 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 338 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:07,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 82 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:17:07,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2023-04-02 04:17:07,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 208. [2023-04-02 04:17:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 133 states have internal predecessors, (153), 41 states have call successors, (41), 39 states have call predecessors, (41), 40 states have return successors, (44), 40 states have call predecessors, (44), 37 states have call successors, (44) [2023-04-02 04:17:07,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 238 transitions. [2023-04-02 04:17:07,839 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 238 transitions. Word has length 70 [2023-04-02 04:17:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:07,839 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 238 transitions. [2023-04-02 04:17:07,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 4 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-02 04:17:07,840 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 238 transitions. [2023-04-02 04:17:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-04-02 04:17:07,841 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:07,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:07,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 04:17:07,841 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:07,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:07,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1257611123, now seen corresponding path program 1 times [2023-04-02 04:17:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:07,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754030535] [2023-04-02 04:17:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:07,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:08,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:08,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:08,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 04:17:08,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:08,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:08,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:08,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-04-02 04:17:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 04:17:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 04:17:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:08,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:08,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754030535] [2023-04-02 04:17:08,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754030535] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:08,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:08,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:08,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849788920] [2023-04-02 04:17:08,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:08,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:08,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:08,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:08,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:08,053 INFO L87 Difference]: Start difference. First operand 208 states and 238 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:17:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:08,634 INFO L93 Difference]: Finished difference Result 551 states and 690 transitions. [2023-04-02 04:17:08,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 04:17:08,635 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) Word has length 84 [2023-04-02 04:17:08,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:08,641 INFO L225 Difference]: With dead ends: 551 [2023-04-02 04:17:08,641 INFO L226 Difference]: Without dead ends: 367 [2023-04-02 04:17:08,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-04-02 04:17:08,644 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 315 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:08,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 66 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:17:08,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-04-02 04:17:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 327. [2023-04-02 04:17:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 202 states have (on average 1.2079207920792079) internal successors, (244), 214 states have internal predecessors, (244), 62 states have call successors, (62), 58 states have call predecessors, (62), 62 states have return successors, (76), 61 states have call predecessors, (76), 58 states have call successors, (76) [2023-04-02 04:17:08,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 382 transitions. [2023-04-02 04:17:08,703 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 382 transitions. Word has length 84 [2023-04-02 04:17:08,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:08,704 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 382 transitions. [2023-04-02 04:17:08,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (13), 4 states have call predecessors, (13), 3 states have call successors, (13) [2023-04-02 04:17:08,705 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 382 transitions. [2023-04-02 04:17:08,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:17:08,706 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:08,706 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:08,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 04:17:08,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:08,707 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:08,707 INFO L85 PathProgramCache]: Analyzing trace with hash 333506567, now seen corresponding path program 1 times [2023-04-02 04:17:08,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:08,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343231018] [2023-04-02 04:17:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:08,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:08,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:08,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:08,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 04:17:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:17:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:17:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:08,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:08,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343231018] [2023-04-02 04:17:08,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343231018] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:08,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:08,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 04:17:08,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79885009] [2023-04-02 04:17:08,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:08,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 04:17:08,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 04:17:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-02 04:17:08,889 INFO L87 Difference]: Start difference. First operand 327 states and 382 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:17:09,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:09,573 INFO L93 Difference]: Finished difference Result 748 states and 953 transitions. [2023-04-02 04:17:09,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 04:17:09,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 88 [2023-04-02 04:17:09,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:09,576 INFO L225 Difference]: With dead ends: 748 [2023-04-02 04:17:09,576 INFO L226 Difference]: Without dead ends: 553 [2023-04-02 04:17:09,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-04-02 04:17:09,577 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 439 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 264 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 264 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:09,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 91 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [264 Valid, 846 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 04:17:09,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2023-04-02 04:17:09,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 485. [2023-04-02 04:17:09,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 301 states have (on average 1.1993355481727574) internal successors, (361), 317 states have internal predecessors, (361), 90 states have call successors, (90), 83 states have call predecessors, (90), 93 states have return successors, (125), 93 states have call predecessors, (125), 86 states have call successors, (125) [2023-04-02 04:17:09,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 576 transitions. [2023-04-02 04:17:09,619 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 576 transitions. Word has length 88 [2023-04-02 04:17:09,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:09,619 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 576 transitions. [2023-04-02 04:17:09,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2023-04-02 04:17:09,619 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 576 transitions. [2023-04-02 04:17:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:17:09,621 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:09,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:09,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 04:17:09,621 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:09,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:09,621 INFO L85 PathProgramCache]: Analyzing trace with hash -589177016, now seen corresponding path program 1 times [2023-04-02 04:17:09,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:09,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600578793] [2023-04-02 04:17:09,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:09,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:09,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 04:17:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:17:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:17:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:09,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:09,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:09,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600578793] [2023-04-02 04:17:09,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600578793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:09,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:09,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 04:17:09,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209665701] [2023-04-02 04:17:09,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:09,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 04:17:09,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:09,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 04:17:09,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-02 04:17:09,750 INFO L87 Difference]: Start difference. First operand 485 states and 576 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:10,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:10,183 INFO L93 Difference]: Finished difference Result 898 states and 1109 transitions. [2023-04-02 04:17:10,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 04:17:10,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-04-02 04:17:10,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:10,187 INFO L225 Difference]: With dead ends: 898 [2023-04-02 04:17:10,187 INFO L226 Difference]: Without dead ends: 541 [2023-04-02 04:17:10,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:10,188 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 134 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:10,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 55 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 04:17:10,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-04-02 04:17:10,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 485. [2023-04-02 04:17:10,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 301 states have (on average 1.196013289036545) internal successors, (360), 317 states have internal predecessors, (360), 90 states have call successors, (90), 83 states have call predecessors, (90), 93 states have return successors, (125), 93 states have call predecessors, (125), 86 states have call successors, (125) [2023-04-02 04:17:10,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 575 transitions. [2023-04-02 04:17:10,257 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 575 transitions. Word has length 88 [2023-04-02 04:17:10,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:10,257 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 575 transitions. [2023-04-02 04:17:10,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:10,257 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 575 transitions. [2023-04-02 04:17:10,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 04:17:10,260 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:10,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:10,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 04:17:10,260 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:10,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:10,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1433182518, now seen corresponding path program 1 times [2023-04-02 04:17:10,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:10,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120074332] [2023-04-02 04:17:10,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:10,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:10,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 04:17:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 04:17:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 04:17:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120074332] [2023-04-02 04:17:10,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120074332] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:10,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 04:17:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818687787] [2023-04-02 04:17:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:10,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 04:17:10,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 04:17:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2023-04-02 04:17:10,459 INFO L87 Difference]: Start difference. First operand 485 states and 575 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:11,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:11,085 INFO L93 Difference]: Finished difference Result 991 states and 1226 transitions. [2023-04-02 04:17:11,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-02 04:17:11,086 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 88 [2023-04-02 04:17:11,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:11,089 INFO L225 Difference]: With dead ends: 991 [2023-04-02 04:17:11,089 INFO L226 Difference]: Without dead ends: 530 [2023-04-02 04:17:11,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2023-04-02 04:17:11,091 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 286 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:11,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 75 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 04:17:11,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2023-04-02 04:17:11,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 485. [2023-04-02 04:17:11,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 305 states have (on average 1.1901639344262296) internal successors, (363), 320 states have internal predecessors, (363), 88 states have call successors, (88), 82 states have call predecessors, (88), 91 states have return successors, (122), 91 states have call predecessors, (122), 84 states have call successors, (122) [2023-04-02 04:17:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 573 transitions. [2023-04-02 04:17:11,159 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 573 transitions. Word has length 88 [2023-04-02 04:17:11,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:11,160 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 573 transitions. [2023-04-02 04:17:11,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (20), 5 states have call predecessors, (20), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 573 transitions. [2023-04-02 04:17:11,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 04:17:11,162 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:11,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:11,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 04:17:11,162 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:11,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:11,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1400794958, now seen corresponding path program 1 times [2023-04-02 04:17:11,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:11,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202864490] [2023-04-02 04:17:11,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:11,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:11,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 04:17:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 04:17:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 04:17:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 04:17:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 04:17:11,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:11,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202864490] [2023-04-02 04:17:11,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202864490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 04:17:11,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 04:17:11,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 04:17:11,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846833291] [2023-04-02 04:17:11,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 04:17:11,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 04:17:11,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:11,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 04:17:11,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-04-02 04:17:11,322 INFO L87 Difference]: Start difference. First operand 485 states and 573 transitions. Second operand has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:12,145 INFO L93 Difference]: Finished difference Result 985 states and 1186 transitions. [2023-04-02 04:17:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 04:17:12,146 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 89 [2023-04-02 04:17:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:12,149 INFO L225 Difference]: With dead ends: 985 [2023-04-02 04:17:12,149 INFO L226 Difference]: Without dead ends: 524 [2023-04-02 04:17:12,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2023-04-02 04:17:12,150 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 384 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 1595 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 1814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:12,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 261 Invalid, 1814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 04:17:12,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2023-04-02 04:17:12,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 485. [2023-04-02 04:17:12,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 305 states have (on average 1.1737704918032787) internal successors, (358), 320 states have internal predecessors, (358), 88 states have call successors, (88), 82 states have call predecessors, (88), 91 states have return successors, (115), 91 states have call predecessors, (115), 84 states have call successors, (115) [2023-04-02 04:17:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 561 transitions. [2023-04-02 04:17:12,196 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 561 transitions. Word has length 89 [2023-04-02 04:17:12,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:12,197 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 561 transitions. [2023-04-02 04:17:12,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.230769230769231) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (20), 6 states have call predecessors, (20), 4 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2023-04-02 04:17:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 561 transitions. [2023-04-02 04:17:12,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 04:17:12,201 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 04:17:12,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 04:17:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 04:17:12,201 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 04:17:12,201 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 04:17:12,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1786466393, now seen corresponding path program 1 times [2023-04-02 04:17:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 04:17:12,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195256822] [2023-04-02 04:17:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:12,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 04:17:12,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 04:17:12,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 04:17:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 04:17:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 04:17:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 04:17:12,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 04:17:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 04:17:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 04:17:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 04:17:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:12,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 04:17:12,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 04:17:12,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 04:17:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 04:17:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 04:17:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 04:17:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 04:17:12,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 04:17:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 04:17:12,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 04:17:12,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195256822] [2023-04-02 04:17:12,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195256822] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 04:17:12,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567551434] [2023-04-02 04:17:12,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 04:17:12,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 04:17:12,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 04:17:12,409 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 04:17:12,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 04:17:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 04:17:12,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-02 04:17:12,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 04:17:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-02 04:17:12,835 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 04:17:13,197 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 04:17:13,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567551434] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 04:17:13,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 04:17:13,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 24 [2023-04-02 04:17:13,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412014629] [2023-04-02 04:17:13,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 04:17:13,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-04-02 04:17:13,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 04:17:13,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-04-02 04:17:13,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2023-04-02 04:17:13,201 INFO L87 Difference]: Start difference. First operand 485 states and 561 transitions. Second operand has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 17 states have internal predecessors, (151), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:17:15,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 04:17:15,712 INFO L93 Difference]: Finished difference Result 1879 states and 2673 transitions. [2023-04-02 04:17:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-04-02 04:17:15,712 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 17 states have internal predecessors, (151), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) Word has length 136 [2023-04-02 04:17:15,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 04:17:15,713 INFO L225 Difference]: With dead ends: 1879 [2023-04-02 04:17:15,713 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 04:17:15,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 311 SyntacticMatches, 11 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1764 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1177, Invalid=4523, Unknown=0, NotChecked=0, Total=5700 [2023-04-02 04:17:15,721 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 1706 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 2912 mSolverCounterSat, 1090 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1706 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 4002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1090 IncrementalHoareTripleChecker+Valid, 2912 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-02 04:17:15,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1706 Valid, 924 Invalid, 4002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1090 Valid, 2912 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-02 04:17:15,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 04:17:15,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 04:17:15,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 04:17:15,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 04:17:15,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2023-04-02 04:17:15,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 04:17:15,724 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 04:17:15,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.291666666666667) internal successors, (151), 17 states have internal predecessors, (151), 7 states have call successors, (65), 12 states have call predecessors, (65), 14 states have return successors, (52), 10 states have call predecessors, (52), 7 states have call successors, (52) [2023-04-02 04:17:15,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 04:17:15,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 04:17:15,727 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 04:17:15,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 04:17:15,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-02 04:17:15,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 04:17:40,608 WARN L223 SmtUtils]: Spent 24.17s on a formula simplification. DAG size of input: 140 DAG size of output: 167 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 04:17:56,849 WARN L223 SmtUtils]: Spent 15.93s on a formula simplification. DAG size of input: 126 DAG size of output: 157 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)