/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:51:54,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:51:54,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:51:54,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:51:54,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:51:54,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:51:54,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:51:54,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:51:54,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:51:54,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:51:54,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:51:54,445 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:51:54,445 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:51:54,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:51:54,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:51:54,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:51:54,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:51:54,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:51:54,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:51:54,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:51:54,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:51:54,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:51:54,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:51:54,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:51:54,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:51:54,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:51:54,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:51:54,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:51:54,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:51:54,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:51:54,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:51:54,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:51:54,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:51:54,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:51:54,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:51:54,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:51:54,469 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:51:54,469 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:51:54,469 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:51:54,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:51:54,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:51:54,472 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 00:51:54,493 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:51:54,494 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:51:54,494 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:51:54,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:51:54,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:51:54,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:51:54,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:51:54,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:51:54,496 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:51:54,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:51:54,496 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:51:54,497 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:51:54,498 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:51:54,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:51:54,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:51:54,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:51:54,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:54,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:51:54,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:51:54,499 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:51:54,500 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:51:54,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:51:54,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:51:54,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:51:54,708 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:51:54,710 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:51:54,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c [2023-03-31 00:51:55,693 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:51:55,946 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:51:55,946 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c [2023-03-31 00:51:55,957 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a93dd18e/8dc21e76eb5841e4a5f87b1298836175/FLAG36a083067 [2023-03-31 00:51:55,967 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a93dd18e/8dc21e76eb5841e4a5f87b1298836175 [2023-03-31 00:51:55,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:51:55,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:51:55,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:55,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:51:55,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:51:55,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:55" (1/1) ... [2023-03-31 00:51:55,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc556ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:55, skipping insertion in model container [2023-03-31 00:51:55,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:51:55" (1/1) ... [2023-03-31 00:51:55,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:51:56,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:51:56,136 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2023-03-31 00:51:56,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:56,379 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:51:56,389 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2023-03-31 00:51:56,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:51:56,507 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:51:56,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56 WrapperNode [2023-03-31 00:51:56,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:51:56,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:51:56,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:51:56,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:51:56,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:51:56,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:51:56,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:51:56,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:51:56,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (1/1) ... [2023-03-31 00:51:56,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:51:56,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:51:56,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 00:51:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:51:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:51:56,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:51:56,707 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:51:56,708 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:51:56,709 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:51:56,710 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:51:56,711 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:51:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:51:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:51:56,712 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:51:56,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 00:51:56,713 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-03-31 00:51:56,725 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:56,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:56,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:51:56,727 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:51:56,728 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:51:56,729 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:51:56,730 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:51:56,731 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:51:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:51:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:51:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:51:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:51:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:51:56,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:51:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:51:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:51:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:51:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:51:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-03-31 00:51:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2023-03-31 00:51:56,741 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:51:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:51:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:51:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:51:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:51:56,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:51:56,961 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:51:56,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:51:57,945 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:51:57,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:51:57,960 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:51:57,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:57 BoogieIcfgContainer [2023-03-31 00:51:57,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:51:57,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:51:57,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:51:57,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:51:57,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:51:55" (1/3) ... [2023-03-31 00:51:57,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43440a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:57, skipping insertion in model container [2023-03-31 00:51:57,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:51:56" (2/3) ... [2023-03-31 00:51:57,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43440a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:51:57, skipping insertion in model container [2023-03-31 00:51:57,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:51:57" (3/3) ... [2023-03-31 00:51:57,989 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.c [2023-03-31 00:51:58,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:51:58,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:51:58,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:51:58,070 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;@6823e4d0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:51:58,070 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:51:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 789 states, 547 states have (on average 1.6307129798903108) internal successors, (892), 576 states have internal predecessors, (892), 177 states have call successors, (177), 52 states have call predecessors, (177), 52 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) [2023-03-31 00:51:58,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-03-31 00:51:58,088 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:51:58,089 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] [2023-03-31 00:51:58,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:51:58,092 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:51:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1867506258, now seen corresponding path program 1 times [2023-03-31 00:51:58,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:51:58,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014852085] [2023-03-31 00:51:58,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:51:58,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:51:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:51:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:51:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:51:58,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:51:58,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:51:58,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:51:58,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:51:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:59,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:51:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:51:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-03-31 00:51:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:51:59,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:51:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:51:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:51:59,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:51:59,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014852085] [2023-03-31 00:51:59,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014852085] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:51:59,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:51:59,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:51:59,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711004231] [2023-03-31 00:51:59,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:51:59,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:51:59,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:51:59,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:51:59,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:51:59,154 INFO L87 Difference]: Start difference. First operand has 789 states, 547 states have (on average 1.6307129798903108) internal successors, (892), 576 states have internal predecessors, (892), 177 states have call successors, (177), 52 states have call predecessors, (177), 52 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:07,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:07,025 INFO L93 Difference]: Finished difference Result 1678 states and 2914 transitions. [2023-03-31 00:52:07,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:07,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 85 [2023-03-31 00:52:07,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:07,068 INFO L225 Difference]: With dead ends: 1678 [2023-03-31 00:52:07,070 INFO L226 Difference]: Without dead ends: 1060 [2023-03-31 00:52:07,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:07,082 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1164 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 4596 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 4993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 4596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:07,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 705 Invalid, 4993 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [397 Valid, 4596 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-03-31 00:52:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-03-31 00:52:07,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-03-31 00:52:07,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6615720524017468) internal successors, (761), 479 states have internal predecessors, (761), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-03-31 00:52:07,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 993 transitions. [2023-03-31 00:52:07,253 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 993 transitions. Word has length 85 [2023-03-31 00:52:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:07,253 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 993 transitions. [2023-03-31 00:52:07,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 993 transitions. [2023-03-31 00:52:07,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-03-31 00:52:07,256 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:07,256 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] [2023-03-31 00:52:07,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:52:07,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:07,257 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:07,257 INFO L85 PathProgramCache]: Analyzing trace with hash 60969688, now seen corresponding path program 1 times [2023-03-31 00:52:07,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:07,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870313469] [2023-03-31 00:52:07,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:07,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:07,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:07,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:07,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:07,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:07,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:07,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870313469] [2023-03-31 00:52:07,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870313469] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:07,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:07,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:07,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550266551] [2023-03-31 00:52:07,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:07,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:07,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:07,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:07,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:07,907 INFO L87 Difference]: Start difference. First operand 622 states and 993 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:13,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:13,944 INFO L93 Difference]: Finished difference Result 1645 states and 2846 transitions. [2023-03-31 00:52:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:13,944 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 88 [2023-03-31 00:52:13,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:13,951 INFO L225 Difference]: With dead ends: 1645 [2023-03-31 00:52:13,951 INFO L226 Difference]: Without dead ends: 1060 [2023-03-31 00:52:13,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:13,958 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 2872 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 3824 mSolverCounterSat, 1097 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3011 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 4921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1097 IncrementalHoareTripleChecker+Valid, 3824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:13,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3011 Valid, 707 Invalid, 4921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1097 Valid, 3824 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-03-31 00:52:13,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-03-31 00:52:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-03-31 00:52:14,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6593886462882097) internal successors, (760), 479 states have internal predecessors, (760), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-03-31 00:52:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 992 transitions. [2023-03-31 00:52:14,110 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 992 transitions. Word has length 88 [2023-03-31 00:52:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:14,111 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 992 transitions. [2023-03-31 00:52:14,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 992 transitions. [2023-03-31 00:52:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-03-31 00:52:14,113 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:14,113 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] [2023-03-31 00:52:14,113 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:52:14,113 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:14,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:14,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1238501311, now seen corresponding path program 1 times [2023-03-31 00:52:14,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:14,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826156556] [2023-03-31 00:52:14,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:14,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:14,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:14,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:52:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:14,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:14,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:14,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:14,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826156556] [2023-03-31 00:52:14,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826156556] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:14,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:14,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:14,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809150604] [2023-03-31 00:52:14,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:14,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:14,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:14,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:14,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:14,669 INFO L87 Difference]: Start difference. First operand 622 states and 992 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:20,933 INFO L93 Difference]: Finished difference Result 1645 states and 2845 transitions. [2023-03-31 00:52:20,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:20,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-03-31 00:52:20,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:20,939 INFO L225 Difference]: With dead ends: 1645 [2023-03-31 00:52:20,939 INFO L226 Difference]: Without dead ends: 1060 [2023-03-31 00:52:20,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:20,941 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 2285 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 4005 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 4861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 4005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:20,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 717 Invalid, 4861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 4005 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-03-31 00:52:20,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-03-31 00:52:21,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-03-31 00:52:21,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6572052401746724) internal successors, (759), 479 states have internal predecessors, (759), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-03-31 00:52:21,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 991 transitions. [2023-03-31 00:52:21,048 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 991 transitions. Word has length 89 [2023-03-31 00:52:21,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:21,048 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 991 transitions. [2023-03-31 00:52:21,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:21,048 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 991 transitions. [2023-03-31 00:52:21,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-03-31 00:52:21,049 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:21,049 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, 1] [2023-03-31 00:52:21,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:52:21,050 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:21,050 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:21,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1508920180, now seen corresponding path program 1 times [2023-03-31 00:52:21,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:21,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170859030] [2023-03-31 00:52:21,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:21,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:21,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:21,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:21,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:21,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:21,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-03-31 00:52:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-03-31 00:52:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:21,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:21,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:21,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170859030] [2023-03-31 00:52:21,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170859030] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:21,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:21,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:21,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879795741] [2023-03-31 00:52:21,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:21,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:21,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:21,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:21,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:21,612 INFO L87 Difference]: Start difference. First operand 622 states and 991 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:27,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:27,846 INFO L93 Difference]: Finished difference Result 1645 states and 2844 transitions. [2023-03-31 00:52:27,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:27,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 90 [2023-03-31 00:52:27,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:27,856 INFO L225 Difference]: With dead ends: 1645 [2023-03-31 00:52:27,857 INFO L226 Difference]: Without dead ends: 1060 [2023-03-31 00:52:27,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:27,866 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 2430 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 3957 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2569 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 4846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 3957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:27,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2569 Valid, 658 Invalid, 4846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 3957 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-03-31 00:52:27,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-03-31 00:52:27,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-03-31 00:52:27,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6550218340611353) internal successors, (758), 479 states have internal predecessors, (758), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-03-31 00:52:27,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 990 transitions. [2023-03-31 00:52:27,992 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 990 transitions. Word has length 90 [2023-03-31 00:52:27,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:27,993 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 990 transitions. [2023-03-31 00:52:27,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:27,993 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 990 transitions. [2023-03-31 00:52:27,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-03-31 00:52:27,995 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:27,995 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, 1, 1] [2023-03-31 00:52:27,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:52:27,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:27,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 860989981, now seen corresponding path program 1 times [2023-03-31 00:52:27,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:27,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263588868] [2023-03-31 00:52:27,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:27,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:28,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:28,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-03-31 00:52:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-03-31 00:52:28,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:28,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:28,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:28,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:28,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263588868] [2023-03-31 00:52:28,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263588868] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:28,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:28,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:28,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763461780] [2023-03-31 00:52:28,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:28,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:28,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:28,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:28,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:28,603 INFO L87 Difference]: Start difference. First operand 622 states and 990 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:34,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:34,567 INFO L93 Difference]: Finished difference Result 1645 states and 2843 transitions. [2023-03-31 00:52:34,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 00:52:34,568 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 91 [2023-03-31 00:52:34,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:34,573 INFO L225 Difference]: With dead ends: 1645 [2023-03-31 00:52:34,573 INFO L226 Difference]: Without dead ends: 1060 [2023-03-31 00:52:34,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:52:34,575 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 2978 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 3947 mSolverCounterSat, 1129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3120 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 5076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1129 IncrementalHoareTripleChecker+Valid, 3947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:34,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3120 Valid, 635 Invalid, 5076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1129 Valid, 3947 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-03-31 00:52:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-03-31 00:52:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-03-31 00:52:34,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6528384279475983) internal successors, (757), 479 states have internal predecessors, (757), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-03-31 00:52:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 989 transitions. [2023-03-31 00:52:34,710 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 989 transitions. Word has length 91 [2023-03-31 00:52:34,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:34,710 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 989 transitions. [2023-03-31 00:52:34,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-03-31 00:52:34,711 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 989 transitions. [2023-03-31 00:52:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 00:52:34,713 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:34,713 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, 1, 1, 1] [2023-03-31 00:52:34,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:52:34,713 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:34,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1963627504, now seen corresponding path program 1 times [2023-03-31 00:52:34,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:34,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566857329] [2023-03-31 00:52:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:34,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:35,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:35,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:35,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:35,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:35,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:35,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:35,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:35,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566857329] [2023-03-31 00:52:35,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566857329] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:35,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:35,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-03-31 00:52:35,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079054310] [2023-03-31 00:52:35,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:35,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 00:52:35,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:35,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 00:52:35,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-03-31 00:52:35,480 INFO L87 Difference]: Start difference. First operand 622 states and 989 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-03-31 00:52:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:44,316 INFO L93 Difference]: Finished difference Result 1612 states and 2779 transitions. [2023-03-31 00:52:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-03-31 00:52:44,317 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 92 [2023-03-31 00:52:44,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:44,325 INFO L225 Difference]: With dead ends: 1612 [2023-03-31 00:52:44,325 INFO L226 Difference]: Without dead ends: 1078 [2023-03-31 00:52:44,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2023-03-31 00:52:44,330 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 1783 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 10274 mSolverCounterSat, 655 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 1508 SdHoareTripleChecker+Invalid, 10929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 655 IncrementalHoareTripleChecker+Valid, 10274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:44,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 1508 Invalid, 10929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [655 Valid, 10274 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2023-03-31 00:52:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-03-31 00:52:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 629. [2023-03-31 00:52:44,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.648590021691974) internal successors, (760), 484 states have internal predecessors, (760), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-03-31 00:52:44,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 998 transitions. [2023-03-31 00:52:44,466 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 998 transitions. Word has length 92 [2023-03-31 00:52:44,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:44,466 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 998 transitions. [2023-03-31 00:52:44,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-03-31 00:52:44,467 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 998 transitions. [2023-03-31 00:52:44,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-03-31 00:52:44,468 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:44,468 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, 1, 1, 1] [2023-03-31 00:52:44,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:52:44,468 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:44,468 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:44,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1943290129, now seen corresponding path program 1 times [2023-03-31 00:52:44,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:44,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831900195] [2023-03-31 00:52:44,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:44,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:44,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:44,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:44,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:52:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:44,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:44,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:44,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831900195] [2023-03-31 00:52:44,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831900195] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:44,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:44,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:44,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683687869] [2023-03-31 00:52:44,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:44,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:44,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:44,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:44,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:44,996 INFO L87 Difference]: Start difference. First operand 629 states and 998 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-03-31 00:52:51,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:52:51,844 INFO L93 Difference]: Finished difference Result 1616 states and 2786 transitions. [2023-03-31 00:52:51,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 00:52:51,845 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 92 [2023-03-31 00:52:51,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:52:51,850 INFO L225 Difference]: With dead ends: 1616 [2023-03-31 00:52:51,850 INFO L226 Difference]: Without dead ends: 1072 [2023-03-31 00:52:51,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-03-31 00:52:51,852 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1326 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 4349 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 4787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 4349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-03-31 00:52:51,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 640 Invalid, 4787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 4349 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-03-31 00:52:51,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-03-31 00:52:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 629. [2023-03-31 00:52:51,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.6377440347071583) internal successors, (755), 484 states have internal predecessors, (755), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-03-31 00:52:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 993 transitions. [2023-03-31 00:52:51,971 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 993 transitions. Word has length 92 [2023-03-31 00:52:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:52:51,971 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 993 transitions. [2023-03-31 00:52:51,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-03-31 00:52:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 993 transitions. [2023-03-31 00:52:51,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-03-31 00:52:51,972 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:52:51,973 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, 1, 1, 1, 1] [2023-03-31 00:52:51,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 00:52:51,973 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:52:51,973 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:52:51,973 INFO L85 PathProgramCache]: Analyzing trace with hash 738486187, now seen corresponding path program 1 times [2023-03-31 00:52:51,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:52:51,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238497534] [2023-03-31 00:52:51,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:52:51,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:52:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:52:52,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:52:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:52:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-03-31 00:52:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-03-31 00:52:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:52:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:52,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:52:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:52:52,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-03-31 00:52:52,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:52:52,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:52:52,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:52:52,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:52:52,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:52:52,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238497534] [2023-03-31 00:52:52,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238497534] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:52:52,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:52:52,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 00:52:52,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255896588] [2023-03-31 00:52:52,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:52:52,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 00:52:52,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:52:52,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 00:52:52,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-31 00:52:52,553 INFO L87 Difference]: Start difference. First operand 629 states and 993 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16)