/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_spec3_product03.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:52:57,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:52:57,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:52:57,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 00:52:57,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 00:52:57,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 00:52:57,946 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 00:52:57,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 00:52:57,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 00:52:57,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 00:52:57,953 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 00:52:57,954 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 00:52:57,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 00:52:57,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 00:52:57,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 00:52:57,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 00:52:57,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 00:52:57,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 00:52:57,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 00:52:57,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 00:52:57,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 00:52:57,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 00:52:57,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 00:52:57,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 00:52:57,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 00:52:57,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 00:52:57,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 00:52:57,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 00:52:57,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 00:52:57,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 00:52:57,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 00:52:57,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 00:52:57,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 00:52:57,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 00:52:57,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 00:52:57,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 00:52:57,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 00:52:57,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 00:52:57,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 00:52:57,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 00:52:57,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 00:52:57,982 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 00:52:58,002 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:52:58,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:52:58,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:52:58,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:52:58,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:52:58,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:52:58,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:52:58,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:52:58,005 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:52:58,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:52:58,005 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:52:58,005 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:52:58,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:52:58,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:52:58,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:52:58,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:52:58,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:52:58,008 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:52:58,008 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:52:58,008 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:52:58,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:52:58,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:52:58,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:52:58,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:52:58,223 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:52:58,223 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:52:58,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2023-03-31 00:52:59,182 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:52:59,419 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:52:59,419 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2023-03-31 00:52:59,430 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439d6d70f/882f5a73a47848eeb9bea46c9e2f499c/FLAG95b1cdbb2 [2023-03-31 00:52:59,446 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439d6d70f/882f5a73a47848eeb9bea46c9e2f499c [2023-03-31 00:52:59,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:52:59,449 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:52:59,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:52:59,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:52:59,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:52:59,453 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb187c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59, skipping insertion in model container [2023-03-31 00:52:59,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:52:59,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:52:59,735 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_spec3_product03.cil.c[33356,33369] [2023-03-31 00:52:59,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:52:59,851 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:52:59,880 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_spec3_product03.cil.c[33356,33369] [2023-03-31 00:52:59,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:52:59,924 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:52:59,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59 WrapperNode [2023-03-31 00:52:59,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:52:59,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:52:59,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:52:59,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:52:59,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:52:59,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:53:00,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:53:00,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:53:00,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:53:00,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:53:00,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:53:00,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:53:00,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (1/1) ... [2023-03-31 00:53:00,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:53:00,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:53:00,059 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 00:53:00,085 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 00:53:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:53:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-03-31 00:53:00,097 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-03-31 00:53:00,098 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-03-31 00:53:00,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__base [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-03-31 00:53:00,100 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-03-31 00:53:00,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-03-31 00:53:00,102 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-03-31 00:53:00,103 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-03-31 00:53:00,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:53:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:53:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:53:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:53:00,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:53:00,105 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-03-31 00:53:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:53:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-03-31 00:53:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-03-31 00:53:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-03-31 00:53:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-03-31 00:53:00,108 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-03-31 00:53:00,109 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-03-31 00:53:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-03-31 00:53:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-03-31 00:53:00,110 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-03-31 00:53:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-03-31 00:53:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-03-31 00:53:00,111 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-03-31 00:53:00,113 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-03-31 00:53:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-03-31 00:53:00,117 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__base [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-03-31 00:53:00,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:53:00,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:53:00,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:53:00,355 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:53:00,359 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:53:01,423 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:53:01,437 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:53:01,437 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-03-31 00:53:01,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:53:01 BoogieIcfgContainer [2023-03-31 00:53:01,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:53:01,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:53:01,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:53:01,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:53:01,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:52:59" (1/3) ... [2023-03-31 00:53:01,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d0476c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:53:01, skipping insertion in model container [2023-03-31 00:53:01,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:52:59" (2/3) ... [2023-03-31 00:53:01,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d0476c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:53:01, skipping insertion in model container [2023-03-31 00:53:01,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:53:01" (3/3) ... [2023-03-31 00:53:01,445 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.c [2023-03-31 00:53:01,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:53:01,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:53:01,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:53:01,505 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;@448c0eaf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:53:01,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:53:01,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 769 states, 530 states have (on average 1.6245283018867924) internal successors, (861), 553 states have internal predecessors, (861), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 172 states have call predecessors, (178), 178 states have call successors, (178) [2023-03-31 00:53:01,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-03-31 00:53:01,532 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:01,532 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:01,533 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:01,537 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:01,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1907178019, now seen corresponding path program 1 times [2023-03-31 00:53:01,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:01,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010858270] [2023-03-31 00:53:01,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:01,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:02,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:53:02,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-03-31 00:53:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-03-31 00:53:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-03-31 00:53:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-03-31 00:53:02,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-03-31 00:53:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:02,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:02,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010858270] [2023-03-31 00:53:02,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010858270] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:02,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:02,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:53:02,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584189862] [2023-03-31 00:53:02,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:02,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:53:02,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:02,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:53:02,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:53:02,851 INFO L87 Difference]: Start difference. First operand has 769 states, 530 states have (on average 1.6245283018867924) internal successors, (861), 553 states have internal predecessors, (861), 178 states have call successors, (178), 47 states have call predecessors, (178), 47 states have return successors, (178), 172 states have call predecessors, (178), 178 states have call successors, (178) Second operand has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:11,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:11,467 INFO L93 Difference]: Finished difference Result 1538 states and 2705 transitions. [2023-03-31 00:53:11,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 00:53:11,469 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 141 [2023-03-31 00:53:11,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:11,484 INFO L225 Difference]: With dead ends: 1538 [2023-03-31 00:53:11,485 INFO L226 Difference]: Without dead ends: 923 [2023-03-31 00:53:11,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-03-31 00:53:11,497 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 3194 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 7758 mSolverCounterSat, 1216 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3278 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 8974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1216 IncrementalHoareTripleChecker+Valid, 7758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:11,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3278 Valid, 1045 Invalid, 8974 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1216 Valid, 7758 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-03-31 00:53:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-03-31 00:53:11,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 615. [2023-03-31 00:53:11,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 447 states have (on average 1.6465324384787472) internal successors, (736), 465 states have internal predecessors, (736), 126 states have call successors, (126), 44 states have call predecessors, (126), 41 states have return successors, (122), 117 states have call predecessors, (122), 120 states have call successors, (122) [2023-03-31 00:53:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 984 transitions. [2023-03-31 00:53:11,729 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 984 transitions. Word has length 141 [2023-03-31 00:53:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:11,729 INFO L495 AbstractCegarLoop]: Abstraction has 615 states and 984 transitions. [2023-03-31 00:53:11,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 6 states have internal predecessors, (74), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 984 transitions. [2023-03-31 00:53:11,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-03-31 00:53:11,734 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:11,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:11,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:53:11,735 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:11,735 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:11,735 INFO L85 PathProgramCache]: Analyzing trace with hash -320307372, now seen corresponding path program 1 times [2023-03-31 00:53:11,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:11,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181559564] [2023-03-31 00:53:11,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:11,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:11,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:11,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:11,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:11,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:11,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:12,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:12,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-03-31 00:53:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-03-31 00:53:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:53:12,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-03-31 00:53:12,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 00:53:12,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:53:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 00:53:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:12,303 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:12,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:12,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181559564] [2023-03-31 00:53:12,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181559564] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:12,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:12,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:53:12,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183280944] [2023-03-31 00:53:12,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:12,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 00:53:12,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:12,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 00:53:12,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-03-31 00:53:12,307 INFO L87 Difference]: Start difference. First operand 615 states and 984 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:53:18,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:18,619 INFO L93 Difference]: Finished difference Result 1498 states and 2583 transitions. [2023-03-31 00:53:18,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-31 00:53:18,619 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2023-03-31 00:53:18,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:18,632 INFO L225 Difference]: With dead ends: 1498 [2023-03-31 00:53:18,632 INFO L226 Difference]: Without dead ends: 894 [2023-03-31 00:53:18,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-03-31 00:53:18,635 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1811 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 4417 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 5112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 4417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:18,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 495 Invalid, 5112 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [695 Valid, 4417 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-03-31 00:53:18,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-03-31 00:53:18,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 597. [2023-03-31 00:53:18,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 433 states have (on average 1.6374133949191685) internal successors, (709), 449 states have internal predecessors, (709), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:18,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 951 transitions. [2023-03-31 00:53:18,771 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 951 transitions. Word has length 142 [2023-03-31 00:53:18,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:18,773 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 951 transitions. [2023-03-31 00:53:18,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-03-31 00:53:18,773 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 951 transitions. [2023-03-31 00:53:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-03-31 00:53:18,779 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:18,779 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:18,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 00:53:18,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:18,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:18,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1560420252, now seen corresponding path program 1 times [2023-03-31 00:53:18,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:18,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107645601] [2023-03-31 00:53:18,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:18,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:53:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-03-31 00:53:19,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-03-31 00:53:19,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-03-31 00:53:19,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:19,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-03-31 00:53:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-03-31 00:53:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:19,420 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:19,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:19,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107645601] [2023-03-31 00:53:19,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107645601] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:19,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:19,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-03-31 00:53:19,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971526152] [2023-03-31 00:53:19,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:19,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-03-31 00:53:19,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:19,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-03-31 00:53:19,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-03-31 00:53:19,423 INFO L87 Difference]: Start difference. First operand 597 states and 951 transitions. Second operand has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:27,361 INFO L93 Difference]: Finished difference Result 1461 states and 2519 transitions. [2023-03-31 00:53:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 00:53:27,361 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) Word has length 142 [2023-03-31 00:53:27,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:27,366 INFO L225 Difference]: With dead ends: 1461 [2023-03-31 00:53:27,366 INFO L226 Difference]: Without dead ends: 894 [2023-03-31 00:53:27,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-03-31 00:53:27,368 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2200 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 8517 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 9385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 8517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:27,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 949 Invalid, 9385 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [868 Valid, 8517 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-03-31 00:53:27,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2023-03-31 00:53:27,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 597. [2023-03-31 00:53:27,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 433 states have (on average 1.6351039260969977) internal successors, (708), 449 states have internal predecessors, (708), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:27,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 950 transitions. [2023-03-31 00:53:27,482 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 950 transitions. Word has length 142 [2023-03-31 00:53:27,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:27,482 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 950 transitions. [2023-03-31 00:53:27,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.769230769230769) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 3 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:27,482 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 950 transitions. [2023-03-31 00:53:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-03-31 00:53:27,484 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:27,484 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:27,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 00:53:27,485 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:27,485 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:27,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1195418425, now seen corresponding path program 1 times [2023-03-31 00:53:27,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:27,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829556453] [2023-03-31 00:53:27,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:27,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:27,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:28,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-03-31 00:53:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-03-31 00:53:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-03-31 00:53:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-03-31 00:53:28,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:28,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-03-31 00:53:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-03-31 00:53:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:28,103 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:28,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:28,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829556453] [2023-03-31 00:53:28,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829556453] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:28,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:28,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:53:28,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123205907] [2023-03-31 00:53:28,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:28,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:53:28,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:53:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:53:28,105 INFO L87 Difference]: Start difference. First operand 597 states and 950 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:35,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:35,539 INFO L93 Difference]: Finished difference Result 1467 states and 2525 transitions. [2023-03-31 00:53:35,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 00:53:35,539 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 143 [2023-03-31 00:53:35,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:35,544 INFO L225 Difference]: With dead ends: 1467 [2023-03-31 00:53:35,544 INFO L226 Difference]: Without dead ends: 888 [2023-03-31 00:53:35,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-03-31 00:53:35,546 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 2054 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 7590 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 8345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 7590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:35,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2136 Valid, 861 Invalid, 8345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [755 Valid, 7590 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-03-31 00:53:35,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-03-31 00:53:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 591. [2023-03-31 00:53:35,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 427 states have (on average 1.6276346604215457) internal successors, (695), 443 states have internal predecessors, (695), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:35,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 937 transitions. [2023-03-31 00:53:35,661 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 937 transitions. Word has length 143 [2023-03-31 00:53:35,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:35,661 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 937 transitions. [2023-03-31 00:53:35,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 6 states have internal predecessors, (76), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:35,661 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 937 transitions. [2023-03-31 00:53:35,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-03-31 00:53:35,663 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:35,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:35,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 00:53:35,663 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:35,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash 373019996, now seen corresponding path program 1 times [2023-03-31 00:53:35,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:35,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263788677] [2023-03-31 00:53:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:35,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:35,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:35,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:35,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:35,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:35,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:35,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:53:36,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-03-31 00:53:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-03-31 00:53:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-03-31 00:53:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-03-31 00:53:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-03-31 00:53:36,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:36,269 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:36,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:36,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263788677] [2023-03-31 00:53:36,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263788677] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:36,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:36,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:53:36,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736173188] [2023-03-31 00:53:36,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:36,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:53:36,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:36,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:53:36,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:53:36,272 INFO L87 Difference]: Start difference. First operand 591 states and 937 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:53:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:42,597 INFO L93 Difference]: Finished difference Result 1449 states and 2491 transitions. [2023-03-31 00:53:42,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 00:53:42,597 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 144 [2023-03-31 00:53:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:42,602 INFO L225 Difference]: With dead ends: 1449 [2023-03-31 00:53:42,602 INFO L226 Difference]: Without dead ends: 888 [2023-03-31 00:53:42,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-03-31 00:53:42,605 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 1741 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 5417 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 6097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 5417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:42,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 659 Invalid, 6097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 5417 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-03-31 00:53:42,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2023-03-31 00:53:42,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 591. [2023-03-31 00:53:42,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 427 states have (on average 1.6252927400468384) internal successors, (694), 443 states have internal predecessors, (694), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:42,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 936 transitions. [2023-03-31 00:53:42,738 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 936 transitions. Word has length 144 [2023-03-31 00:53:42,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:42,738 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 936 transitions. [2023-03-31 00:53:42,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:53:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 936 transitions. [2023-03-31 00:53:42,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-03-31 00:53:42,740 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:42,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:42,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 00:53:42,741 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:42,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:42,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1991948702, now seen corresponding path program 1 times [2023-03-31 00:53:42,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:42,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106887244] [2023-03-31 00:53:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 00:53:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-03-31 00:53:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:43,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-03-31 00:53:43,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-03-31 00:53:43,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-03-31 00:53:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-03-31 00:53:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:43,374 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:43,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:43,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106887244] [2023-03-31 00:53:43,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106887244] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:43,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:43,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:53:43,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395575352] [2023-03-31 00:53:43,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:43,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:53:43,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:43,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:53:43,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:53:43,375 INFO L87 Difference]: Start difference. First operand 591 states and 936 transitions. Second operand has 13 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:50,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:50,454 INFO L93 Difference]: Finished difference Result 1455 states and 2497 transitions. [2023-03-31 00:53:50,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-03-31 00:53:50,454 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) Word has length 145 [2023-03-31 00:53:50,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:50,458 INFO L225 Difference]: With dead ends: 1455 [2023-03-31 00:53:50,458 INFO L226 Difference]: Without dead ends: 882 [2023-03-31 00:53:50,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2023-03-31 00:53:50,460 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 2867 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 7464 mSolverCounterSat, 1135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2949 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 8599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1135 IncrementalHoareTripleChecker+Valid, 7464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:50,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2949 Valid, 956 Invalid, 8599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1135 Valid, 7464 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-03-31 00:53:50,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-03-31 00:53:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 585. [2023-03-31 00:53:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 421 states have (on average 1.6175771971496438) internal successors, (681), 437 states have internal predecessors, (681), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:50,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 923 transitions. [2023-03-31 00:53:50,580 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 923 transitions. Word has length 145 [2023-03-31 00:53:50,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:50,580 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 923 transitions. [2023-03-31 00:53:50,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.5) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23) [2023-03-31 00:53:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 923 transitions. [2023-03-31 00:53:50,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-03-31 00:53:50,582 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:50,582 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:50,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 00:53:50,582 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:50,583 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:50,583 INFO L85 PathProgramCache]: Analyzing trace with hash -14906405, now seen corresponding path program 1 times [2023-03-31 00:53:50,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:50,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9645036] [2023-03-31 00:53:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:50,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:50,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:50,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:51,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-03-31 00:53:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-03-31 00:53:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-03-31 00:53:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-03-31 00:53:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-03-31 00:53:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:51,113 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:51,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9645036] [2023-03-31 00:53:51,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9645036] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:51,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:51,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 00:53:51,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934102924] [2023-03-31 00:53:51,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:51,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:53:51,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:51,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:53:51,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:53:51,115 INFO L87 Difference]: Start difference. First operand 585 states and 923 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:53:57,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:53:57,051 INFO L93 Difference]: Finished difference Result 1437 states and 2463 transitions. [2023-03-31 00:53:57,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-31 00:53:57,051 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 146 [2023-03-31 00:53:57,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:53:57,055 INFO L225 Difference]: With dead ends: 1437 [2023-03-31 00:53:57,055 INFO L226 Difference]: Without dead ends: 882 [2023-03-31 00:53:57,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-03-31 00:53:57,057 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 3236 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 1378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3318 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 6335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1378 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-03-31 00:53:57,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3318 Valid, 622 Invalid, 6335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1378 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-03-31 00:53:57,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2023-03-31 00:53:57,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 585. [2023-03-31 00:53:57,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 421 states have (on average 1.6152019002375297) internal successors, (680), 437 states have internal predecessors, (680), 124 states have call successors, (124), 44 states have call predecessors, (124), 39 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-03-31 00:53:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 922 transitions. [2023-03-31 00:53:57,180 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 922 transitions. Word has length 146 [2023-03-31 00:53:57,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:53:57,180 INFO L495 AbstractCegarLoop]: Abstraction has 585 states and 922 transitions. [2023-03-31 00:53:57,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (30), 8 states have call predecessors, (30), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-03-31 00:53:57,181 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 922 transitions. [2023-03-31 00:53:57,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-03-31 00:53:57,182 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:53:57,182 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:53:57,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 00:53:57,182 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:53:57,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:53:57,183 INFO L85 PathProgramCache]: Analyzing trace with hash 520374046, now seen corresponding path program 1 times [2023-03-31 00:53:57,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:53:57,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416279171] [2023-03-31 00:53:57,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:53:57,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:53:57,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:53:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 00:53:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 00:53:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 00:53:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 00:53:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-03-31 00:53:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-31 00:53:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:57,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-03-31 00:53:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:53:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-03-31 00:53:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:57,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-03-31 00:53:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:53:57,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 00:53:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-03-31 00:53:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-03-31 00:53:57,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:53:57,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-03-31 00:53:57,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:53:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416279171] [2023-03-31 00:53:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416279171] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:53:57,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:53:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-03-31 00:53:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733558590] [2023-03-31 00:53:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:53:57,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-03-31 00:53:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:53:57,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-03-31 00:53:57,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2023-03-31 00:53:57,715 INFO L87 Difference]: Start difference. First operand 585 states and 922 transitions. Second operand has 13 states, 12 states have (on average 6.666666666666667) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (30), 8 states have call predecessors, (30), 4 states have return successors, (23), 4 states have call predecessors, (23), 4 states have call successors, (23)