/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 03:00:15,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 03:00:15,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 03:00:15,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 03:00:15,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 03:00:15,104 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 03:00:15,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 03:00:15,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 03:00:15,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 03:00:15,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 03:00:15,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 03:00:15,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 03:00:15,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 03:00:15,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 03:00:15,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 03:00:15,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 03:00:15,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 03:00:15,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 03:00:15,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 03:00:15,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 03:00:15,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 03:00:15,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 03:00:15,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 03:00:15,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 03:00:15,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 03:00:15,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 03:00:15,132 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 03:00:15,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 03:00:15,133 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 03:00:15,134 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 03:00:15,134 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 03:00:15,134 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 03:00:15,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 03:00:15,135 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 03:00:15,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 03:00:15,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 03:00:15,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 03:00:15,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 03:00:15,137 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 03:00:15,137 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 03:00:15,138 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 03:00:15,139 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 03:00:15,152 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 03:00:15,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 03:00:15,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 03:00:15,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 03:00:15,153 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 03:00:15,153 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 03:00:15,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 03:00:15,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 03:00:15,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 03:00:15,155 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 03:00:15,155 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:00:15,156 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 03:00:15,156 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 03:00:15,157 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 03:00:15,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 03:00:15,157 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 03:00:15,157 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 03:00:15,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 03:00:15,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 03:00:15,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 03:00:15,360 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 03:00:15,360 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 03:00:15,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c [2023-04-02 03:00:16,425 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 03:00:16,889 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 03:00:16,889 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c [2023-04-02 03:00:16,929 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c62c698f/11884cbcc45c4c6fb049995199aa6c00/FLAG5b2d162dc [2023-04-02 03:00:16,942 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c62c698f/11884cbcc45c4c6fb049995199aa6c00 [2023-04-02 03:00:16,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 03:00:16,945 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 03:00:16,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 03:00:16,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 03:00:16,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 03:00:16,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:00:16" (1/1) ... [2023-04-02 03:00:16,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e41ce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:16, skipping insertion in model container [2023-04-02 03:00:16,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 03:00:16" (1/1) ... [2023-04-02 03:00:16,954 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 03:00:17,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 03:00:17,135 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2023-04-02 03:00:17,412 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:00:17,427 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 03:00:17,439 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product22.cil.c[1545,1558] [2023-04-02 03:00:17,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 03:00:17,541 INFO L208 MainTranslator]: Completed translation [2023-04-02 03:00:17,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17 WrapperNode [2023-04-02 03:00:17,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 03:00:17,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 03:00:17,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 03:00:17,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 03:00:17,550 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,610 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 03:00:17,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 03:00:17,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 03:00:17,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 03:00:17,632 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (1/1) ... [2023-04-02 03:00:17,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 03:00:17,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:00:17,684 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 03:00:17,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 03:00:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 03:00:17,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 03:00:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 03:00:17,727 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 03:00:17,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 03:00:17,729 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 03:00:17,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 03:00:17,731 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-04-02 03:00:17,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-04-02 03:00:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 03:00:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 03:00:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 03:00:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 03:00:17,732 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 03:00:17,733 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 03:00:17,734 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 03:00:17,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 03:00:17,736 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 03:00:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 03:00:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 03:00:17,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 03:00:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 03:00:17,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 03:00:17,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 03:00:17,744 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 03:00:17,745 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 03:00:17,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 03:00:18,013 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 03:00:18,015 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 03:00:18,998 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 03:00:19,011 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 03:00:19,011 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 03:00:19,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:00:19 BoogieIcfgContainer [2023-04-02 03:00:19,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 03:00:19,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 03:00:19,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 03:00:19,019 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 03:00:19,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 03:00:16" (1/3) ... [2023-04-02 03:00:19,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264a4597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:00:19, skipping insertion in model container [2023-04-02 03:00:19,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 03:00:17" (2/3) ... [2023-04-02 03:00:19,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@264a4597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 03:00:19, skipping insertion in model container [2023-04-02 03:00:19,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 03:00:19" (3/3) ... [2023-04-02 03:00:19,020 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.c [2023-04-02 03:00:19,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 03:00:19,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 03:00:19,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 03:00:19,089 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;@5b927d69, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 03:00:19,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 03:00:19,114 INFO L276 IsEmpty]: Start isEmpty. Operand has 789 states, 547 states have (on average 1.6307129798903108) internal successors, (892), 576 states have internal predecessors, (892), 177 states have call successors, (177), 52 states have call predecessors, (177), 52 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) [2023-04-02 03:00:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-04-02 03:00:19,124 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:19,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:19,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:19,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:19,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1867506258, now seen corresponding path program 1 times [2023-04-02 03:00:19,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:19,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57199642] [2023-04-02 03:00:19,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:19,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:19,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:19,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:00:20,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 03:00:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:20,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:20,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57199642] [2023-04-02 03:00:20,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57199642] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:20,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:20,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:00:20,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218049637] [2023-04-02 03:00:20,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:20,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:00:20,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:20,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:00:20,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:00:20,338 INFO L87 Difference]: Start difference. First operand has 789 states, 547 states have (on average 1.6307129798903108) internal successors, (892), 576 states have internal predecessors, (892), 177 states have call successors, (177), 52 states have call predecessors, (177), 52 states have return successors, (177), 167 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:28,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:28,624 INFO L93 Difference]: Finished difference Result 1678 states and 2914 transitions. [2023-04-02 03:00:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:00:28,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 85 [2023-04-02 03:00:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:28,658 INFO L225 Difference]: With dead ends: 1678 [2023-04-02 03:00:28,659 INFO L226 Difference]: Without dead ends: 1060 [2023-04-02 03:00:28,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:28,670 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1169 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 4633 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1310 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 5022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 4633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:28,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1310 Valid, 735 Invalid, 5022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [389 Valid, 4633 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-04-02 03:00:28,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-04-02 03:00:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-04-02 03:00:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6615720524017468) internal successors, (761), 479 states have internal predecessors, (761), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 03:00:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 993 transitions. [2023-04-02 03:00:28,932 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 993 transitions. Word has length 85 [2023-04-02 03:00:28,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:28,933 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 993 transitions. [2023-04-02 03:00:28,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 4 states have internal predecessors, (49), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 993 transitions. [2023-04-02 03:00:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-04-02 03:00:28,941 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:28,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:28,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 03:00:28,942 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:28,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:28,942 INFO L85 PathProgramCache]: Analyzing trace with hash 60969688, now seen corresponding path program 1 times [2023-04-02 03:00:28,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:28,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351705333] [2023-04-02 03:00:28,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:28,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:29,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:29,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:29,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:29,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:29,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:29,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351705333] [2023-04-02 03:00:29,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351705333] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:29,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:29,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:00:29,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518516493] [2023-04-02 03:00:29,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:29,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:00:29,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:29,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:00:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:00:29,699 INFO L87 Difference]: Start difference. First operand 622 states and 993 transitions. Second operand has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:35,938 INFO L93 Difference]: Finished difference Result 1645 states and 2846 transitions. [2023-04-02 03:00:35,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:00:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 88 [2023-04-02 03:00:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:35,969 INFO L225 Difference]: With dead ends: 1645 [2023-04-02 03:00:35,969 INFO L226 Difference]: Without dead ends: 1060 [2023-04-02 03:00:35,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:35,976 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 2867 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3807 mSolverCounterSat, 1106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3008 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 4913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1106 IncrementalHoareTripleChecker+Valid, 3807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:35,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3008 Valid, 697 Invalid, 4913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1106 Valid, 3807 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 03:00:35,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-04-02 03:00:36,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-04-02 03:00:36,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6593886462882097) internal successors, (760), 479 states have internal predecessors, (760), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 03:00:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 992 transitions. [2023-04-02 03:00:36,135 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 992 transitions. Word has length 88 [2023-04-02 03:00:36,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:36,135 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 992 transitions. [2023-04-02 03:00:36,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.777777777777778) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 992 transitions. [2023-04-02 03:00:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-02 03:00:36,136 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:36,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:36,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 03:00:36,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:36,137 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:36,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1238501311, now seen corresponding path program 1 times [2023-04-02 03:00:36,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:36,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445165355] [2023-04-02 03:00:36,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:36,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:36,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:36,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:36,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:36,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:36,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445165355] [2023-04-02 03:00:36,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445165355] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:36,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:36,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:00:36,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731952084] [2023-04-02 03:00:36,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:36,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:00:36,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:36,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:00:36,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:00:36,793 INFO L87 Difference]: Start difference. First operand 622 states and 992 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:43,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:43,505 INFO L93 Difference]: Finished difference Result 1645 states and 2845 transitions. [2023-04-02 03:00:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:00:43,506 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-04-02 03:00:43,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:43,512 INFO L225 Difference]: With dead ends: 1645 [2023-04-02 03:00:43,512 INFO L226 Difference]: Without dead ends: 1060 [2023-04-02 03:00:43,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:43,520 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 2284 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 4007 mSolverCounterSat, 851 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 851 IncrementalHoareTripleChecker+Valid, 4007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:43,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 714 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [851 Valid, 4007 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 03:00:43,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-04-02 03:00:43,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-04-02 03:00:43,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6572052401746724) internal successors, (759), 479 states have internal predecessors, (759), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 03:00:43,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 991 transitions. [2023-04-02 03:00:43,639 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 991 transitions. Word has length 89 [2023-04-02 03:00:43,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:43,639 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 991 transitions. [2023-04-02 03:00:43,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:43,639 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 991 transitions. [2023-04-02 03:00:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-04-02 03:00:43,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:43,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:43,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 03:00:43,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:43,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:43,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1508920180, now seen corresponding path program 1 times [2023-04-02 03:00:43,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:43,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251990164] [2023-04-02 03:00:43,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:43,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:43,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:43,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:43,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:00:44,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 03:00:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:44,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:44,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251990164] [2023-04-02 03:00:44,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251990164] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:44,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:44,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:00:44,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440125447] [2023-04-02 03:00:44,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:44,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:00:44,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:44,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:00:44,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:00:44,293 INFO L87 Difference]: Start difference. First operand 622 states and 991 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:50,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:50,456 INFO L93 Difference]: Finished difference Result 1645 states and 2844 transitions. [2023-04-02 03:00:50,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:00:50,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 90 [2023-04-02 03:00:50,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:50,463 INFO L225 Difference]: With dead ends: 1645 [2023-04-02 03:00:50,463 INFO L226 Difference]: Without dead ends: 1060 [2023-04-02 03:00:50,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:50,469 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 2424 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 3897 mSolverCounterSat, 921 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2567 SdHoareTripleChecker+Valid, 643 SdHoareTripleChecker+Invalid, 4818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 921 IncrementalHoareTripleChecker+Valid, 3897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:50,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2567 Valid, 643 Invalid, 4818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [921 Valid, 3897 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 03:00:50,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-04-02 03:00:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-04-02 03:00:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6550218340611353) internal successors, (758), 479 states have internal predecessors, (758), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 03:00:50,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 990 transitions. [2023-04-02 03:00:50,595 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 990 transitions. Word has length 90 [2023-04-02 03:00:50,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:50,595 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 990 transitions. [2023-04-02 03:00:50,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:50,596 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 990 transitions. [2023-04-02 03:00:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-02 03:00:50,600 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:50,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:50,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 03:00:50,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:50,601 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:50,601 INFO L85 PathProgramCache]: Analyzing trace with hash 860989981, now seen corresponding path program 1 times [2023-04-02 03:00:50,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:50,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288757608] [2023-04-02 03:00:50,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:50,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:50,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:50,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:51,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:00:51,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 03:00:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:51,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:51,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:51,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288757608] [2023-04-02 03:00:51,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288757608] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:51,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:51,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:00:51,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160270201] [2023-04-02 03:00:51,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:51,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:00:51,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:00:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:00:51,208 INFO L87 Difference]: Start difference. First operand 622 states and 990 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:57,334 INFO L93 Difference]: Finished difference Result 1645 states and 2843 transitions. [2023-04-02 03:00:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:00:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 91 [2023-04-02 03:00:57,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:57,369 INFO L225 Difference]: With dead ends: 1645 [2023-04-02 03:00:57,369 INFO L226 Difference]: Without dead ends: 1060 [2023-04-02 03:00:57,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:57,372 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 2975 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 3956 mSolverCounterSat, 1086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3115 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1086 IncrementalHoareTripleChecker+Valid, 3956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:57,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3115 Valid, 654 Invalid, 5042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1086 Valid, 3956 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-02 03:00:57,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2023-04-02 03:00:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 622. [2023-04-02 03:00:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 458 states have (on average 1.6528384279475983) internal successors, (757), 479 states have internal predecessors, (757), 120 states have call successors, (120), 47 states have call predecessors, (120), 43 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2023-04-02 03:00:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 989 transitions. [2023-04-02 03:00:57,513 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 989 transitions. Word has length 91 [2023-04-02 03:00:57,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:57,513 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 989 transitions. [2023-04-02 03:00:57,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:00:57,513 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 989 transitions. [2023-04-02 03:00:57,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 03:00:57,515 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:57,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:57,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 03:00:57,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:57,515 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:57,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1963627504, now seen corresponding path program 1 times [2023-04-02 03:00:57,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:57,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487151951] [2023-04-02 03:00:57,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:57,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:57,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:58,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:00:58,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:00:58,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:58,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487151951] [2023-04-02 03:00:58,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487151951] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:58,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:58,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:00:58,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240353601] [2023-04-02 03:00:58,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:58,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:00:58,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:58,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:00:58,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:00:58,328 INFO L87 Difference]: Start difference. First operand 622 states and 989 transitions. Second operand has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:05,802 INFO L93 Difference]: Finished difference Result 1612 states and 2779 transitions. [2023-04-02 03:01:05,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:01:05,802 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) Word has length 92 [2023-04-02 03:01:05,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:05,809 INFO L225 Difference]: With dead ends: 1612 [2023-04-02 03:01:05,809 INFO L226 Difference]: Without dead ends: 1078 [2023-04-02 03:01:05,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=177, Invalid=753, Unknown=0, NotChecked=0, Total=930 [2023-04-02 03:01:05,812 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1783 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 10297 mSolverCounterSat, 648 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1922 SdHoareTripleChecker+Valid, 1545 SdHoareTripleChecker+Invalid, 10945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 648 IncrementalHoareTripleChecker+Valid, 10297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:05,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1922 Valid, 1545 Invalid, 10945 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [648 Valid, 10297 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 03:01:05,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1078 states. [2023-04-02 03:01:05,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1078 to 629. [2023-04-02 03:01:05,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.648590021691974) internal successors, (760), 484 states have internal predecessors, (760), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:01:05,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 998 transitions. [2023-04-02 03:01:05,930 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 998 transitions. Word has length 92 [2023-04-02 03:01:05,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:05,931 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 998 transitions. [2023-04-02 03:01:05,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.0) internal successors, (56), 8 states have internal predecessors, (56), 5 states have call successors, (20), 7 states have call predecessors, (20), 5 states have return successors, (16), 5 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 998 transitions. [2023-04-02 03:01:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-04-02 03:01:05,933 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:05,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:05,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:01:05,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:05,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:05,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1943290129, now seen corresponding path program 1 times [2023-04-02 03:01:05,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:05,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602921615] [2023-04-02 03:01:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:05,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:06,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:01:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:06,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:06,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:06,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:06,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602921615] [2023-04-02 03:01:06,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602921615] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:06,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:06,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:06,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562244348] [2023-04-02 03:01:06,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:06,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:06,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:06,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:06,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:06,515 INFO L87 Difference]: Start difference. First operand 629 states and 998 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:13,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:13,381 INFO L93 Difference]: Finished difference Result 1616 states and 2786 transitions. [2023-04-02 03:01:13,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 03:01:13,381 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 92 [2023-04-02 03:01:13,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:13,387 INFO L225 Difference]: With dead ends: 1616 [2023-04-02 03:01:13,387 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 03:01:13,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:01:13,391 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 1331 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 446 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 4764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 446 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:13,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 623 Invalid, 4764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [446 Valid, 4318 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 03:01:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 03:01:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 629. [2023-04-02 03:01:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.6377440347071583) internal successors, (755), 484 states have internal predecessors, (755), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:01:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 993 transitions. [2023-04-02 03:01:13,624 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 993 transitions. Word has length 92 [2023-04-02 03:01:13,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:13,624 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 993 transitions. [2023-04-02 03:01:13,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:13,624 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 993 transitions. [2023-04-02 03:01:13,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-04-02 03:01:13,627 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:13,627 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:13,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:01:13,628 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:13,628 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:13,628 INFO L85 PathProgramCache]: Analyzing trace with hash 738486187, now seen corresponding path program 1 times [2023-04-02 03:01:13,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:13,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646506955] [2023-04-02 03:01:13,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:13,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:13,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:13,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:13,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:14,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:01:14,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 03:01:14,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:14,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:14,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:14,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:14,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:14,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646506955] [2023-04-02 03:01:14,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646506955] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:14,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:14,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:14,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862599693] [2023-04-02 03:01:14,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:14,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:14,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:14,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:14,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:14,185 INFO L87 Difference]: Start difference. First operand 629 states and 993 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:19,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:19,449 INFO L93 Difference]: Finished difference Result 1616 states and 2781 transitions. [2023-04-02 03:01:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 03:01:19,449 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 93 [2023-04-02 03:01:19,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:19,465 INFO L225 Difference]: With dead ends: 1616 [2023-04-02 03:01:19,465 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 03:01:19,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:01:19,468 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 2338 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 3740 mSolverCounterSat, 911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 4651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 911 IncrementalHoareTripleChecker+Valid, 3740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:19,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 660 Invalid, 4651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [911 Valid, 3740 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 03:01:19,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 03:01:19,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 629. [2023-04-02 03:01:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.6268980477223427) internal successors, (750), 484 states have internal predecessors, (750), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:01:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 988 transitions. [2023-04-02 03:01:19,612 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 988 transitions. Word has length 93 [2023-04-02 03:01:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:19,612 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 988 transitions. [2023-04-02 03:01:19,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 4 states have internal predecessors, (57), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:19,612 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 988 transitions. [2023-04-02 03:01:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-04-02 03:01:19,613 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:19,613 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:19,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:01:19,613 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:19,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:19,614 INFO L85 PathProgramCache]: Analyzing trace with hash -2064590732, now seen corresponding path program 1 times [2023-04-02 03:01:19,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:19,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658968214] [2023-04-02 03:01:19,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:19,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:19,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:19,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:20,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:01:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 03:01:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:20,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:20,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:20,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:20,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658968214] [2023-04-02 03:01:20,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658968214] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:20,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:20,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:20,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179015101] [2023-04-02 03:01:20,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:20,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:20,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:20,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:20,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:20,131 INFO L87 Difference]: Start difference. First operand 629 states and 988 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:27,569 INFO L93 Difference]: Finished difference Result 1616 states and 2776 transitions. [2023-04-02 03:01:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 03:01:27,569 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 94 [2023-04-02 03:01:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:27,574 INFO L225 Difference]: With dead ends: 1616 [2023-04-02 03:01:27,574 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 03:01:27,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:01:27,578 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 1298 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 4828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:27,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 649 Invalid, 4828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 4399 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:01:27,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 03:01:27,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 629. [2023-04-02 03:01:27,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.616052060737527) internal successors, (745), 484 states have internal predecessors, (745), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:01:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 983 transitions. [2023-04-02 03:01:27,732 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 983 transitions. Word has length 94 [2023-04-02 03:01:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:27,733 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 983 transitions. [2023-04-02 03:01:27,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 4 states have internal predecessors, (58), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 983 transitions. [2023-04-02 03:01:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 03:01:27,749 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:27,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:27,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:01:27,749 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:27,750 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:27,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1195541200, now seen corresponding path program 1 times [2023-04-02 03:01:27,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:27,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776762820] [2023-04-02 03:01:27,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:27,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:27,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:28,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:28,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:28,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:28,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:28,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776762820] [2023-04-02 03:01:28,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776762820] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:28,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:28,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:28,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115163969] [2023-04-02 03:01:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:28,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:28,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:28,420 INFO L87 Difference]: Start difference. First operand 629 states and 983 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:34,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:34,599 INFO L93 Difference]: Finished difference Result 1616 states and 2771 transitions. [2023-04-02 03:01:34,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 03:01:34,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 95 [2023-04-02 03:01:34,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:34,605 INFO L225 Difference]: With dead ends: 1616 [2023-04-02 03:01:34,605 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 03:01:34,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:01:34,607 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1713 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 4013 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 4634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 4013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:34,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 699 Invalid, 4634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 4013 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 03:01:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 03:01:34,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 629. [2023-04-02 03:01:34,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 461 states have (on average 1.6052060737527114) internal successors, (740), 484 states have internal predecessors, (740), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 110 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:01:34,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 978 transitions. [2023-04-02 03:01:34,724 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 978 transitions. Word has length 95 [2023-04-02 03:01:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:34,724 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 978 transitions. [2023-04-02 03:01:34,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 978 transitions. [2023-04-02 03:01:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-02 03:01:34,725 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:34,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:34,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:01:34,725 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:34,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1713724432, now seen corresponding path program 1 times [2023-04-02 03:01:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650313677] [2023-04-02 03:01:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:34,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:35,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:35,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:35,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:35,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:35,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:35,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650313677] [2023-04-02 03:01:35,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650313677] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:35,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:35,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:01:35,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897869319] [2023-04-02 03:01:35,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:35,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:01:35,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:35,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:01:35,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:01:35,400 INFO L87 Difference]: Start difference. First operand 629 states and 978 transitions. Second operand has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:42,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:42,487 INFO L93 Difference]: Finished difference Result 1616 states and 2764 transitions. [2023-04-02 03:01:42,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 03:01:42,487 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 95 [2023-04-02 03:01:42,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:42,497 INFO L225 Difference]: With dead ends: 1616 [2023-04-02 03:01:42,497 INFO L226 Difference]: Without dead ends: 1080 [2023-04-02 03:01:42,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:01:42,512 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 2285 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 7872 mSolverCounterSat, 913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 8785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 913 IncrementalHoareTripleChecker+Valid, 7872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:42,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 1236 Invalid, 8785 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [913 Valid, 7872 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 03:01:42,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2023-04-02 03:01:42,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 631. [2023-04-02 03:01:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 462 states have (on average 1.603896103896104) internal successors, (741), 486 states have internal predecessors, (741), 122 states have call successors, (122), 47 states have call predecessors, (122), 46 states have return successors, (117), 110 states have call predecessors, (117), 114 states have call successors, (117) [2023-04-02 03:01:42,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 980 transitions. [2023-04-02 03:01:42,647 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 980 transitions. Word has length 95 [2023-04-02 03:01:42,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:42,648 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 980 transitions. [2023-04-02 03:01:42,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.916666666666667) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:42,648 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 980 transitions. [2023-04-02 03:01:42,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 03:01:42,652 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:42,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:42,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:01:42,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:42,653 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:42,653 INFO L85 PathProgramCache]: Analyzing trace with hash -858380807, now seen corresponding path program 1 times [2023-04-02 03:01:42,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:42,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522015489] [2023-04-02 03:01:42,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:42,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:42,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:01:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:43,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:43,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:43,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522015489] [2023-04-02 03:01:43,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522015489] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:43,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:43,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:43,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215560015] [2023-04-02 03:01:43,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:43,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:43,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:43,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:43,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:43,192 INFO L87 Difference]: Start difference. First operand 631 states and 980 transitions. Second operand has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:49,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:49,125 INFO L93 Difference]: Finished difference Result 1618 states and 2770 transitions. [2023-04-02 03:01:49,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 03:01:49,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) Word has length 96 [2023-04-02 03:01:49,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:49,145 INFO L225 Difference]: With dead ends: 1618 [2023-04-02 03:01:49,145 INFO L226 Difference]: Without dead ends: 1074 [2023-04-02 03:01:49,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:01:49,153 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 2846 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 3650 mSolverCounterSat, 1111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2988 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1111 IncrementalHoareTripleChecker+Valid, 3650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:49,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2988 Valid, 675 Invalid, 4761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1111 Valid, 3650 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 03:01:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2023-04-02 03:01:49,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 631. [2023-04-02 03:01:49,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 462 states have (on average 1.593073593073593) internal successors, (736), 486 states have internal predecessors, (736), 122 states have call successors, (122), 47 states have call predecessors, (122), 46 states have return successors, (117), 110 states have call predecessors, (117), 114 states have call successors, (117) [2023-04-02 03:01:49,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 975 transitions. [2023-04-02 03:01:49,274 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 975 transitions. Word has length 96 [2023-04-02 03:01:49,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:49,274 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 975 transitions. [2023-04-02 03:01:49,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.666666666666667) internal successors, (60), 4 states have internal predecessors, (60), 4 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 3 states have call predecessors, (16), 4 states have call successors, (16) [2023-04-02 03:01:49,274 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 975 transitions. [2023-04-02 03:01:49,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-04-02 03:01:49,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:49,275 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:49,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:01:49,275 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:49,275 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1518363751, now seen corresponding path program 1 times [2023-04-02 03:01:49,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:49,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480296058] [2023-04-02 03:01:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:49,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:49,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:49,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:49,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:49,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:49,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480296058] [2023-04-02 03:01:49,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480296058] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:49,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:49,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:01:49,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151679535] [2023-04-02 03:01:49,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:49,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:01:49,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:49,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:01:49,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:01:49,968 INFO L87 Difference]: Start difference. First operand 631 states and 975 transitions. Second operand has 13 states, 12 states have (on average 5.0) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:57,985 INFO L93 Difference]: Finished difference Result 1628 states and 2781 transitions. [2023-04-02 03:01:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 03:01:57,985 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 96 [2023-04-02 03:01:57,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:57,990 INFO L225 Difference]: With dead ends: 1628 [2023-04-02 03:01:57,990 INFO L226 Difference]: Without dead ends: 1090 [2023-04-02 03:01:57,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:01:57,993 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 2281 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 7724 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2426 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 8656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 7724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:57,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2426 Valid, 1205 Invalid, 8656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [932 Valid, 7724 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 03:01:57,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1090 states. [2023-04-02 03:01:58,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1090 to 634. [2023-04-02 03:01:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 463 states have (on average 1.591792656587473) internal successors, (737), 489 states have internal predecessors, (737), 123 states have call successors, (123), 47 states have call predecessors, (123), 47 states have return successors, (119), 110 states have call predecessors, (119), 115 states have call successors, (119) [2023-04-02 03:01:58,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 979 transitions. [2023-04-02 03:01:58,180 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 979 transitions. Word has length 96 [2023-04-02 03:01:58,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:58,181 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 979 transitions. [2023-04-02 03:01:58,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.0) internal successors, (60), 7 states have internal predecessors, (60), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:01:58,182 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 979 transitions. [2023-04-02 03:01:58,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 03:01:58,190 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:58,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:58,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 03:01:58,190 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:58,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:58,190 INFO L85 PathProgramCache]: Analyzing trace with hash -159769097, now seen corresponding path program 1 times [2023-04-02 03:01:58,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:58,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088066793] [2023-04-02 03:01:58,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:58,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:58,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:01:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:58,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:01:58,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:58,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088066793] [2023-04-02 03:01:58,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088066793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:58,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:58,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:58,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489419484] [2023-04-02 03:01:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:58,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:58,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:58,954 INFO L87 Difference]: Start difference. First operand 634 states and 979 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:02:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:04,220 INFO L93 Difference]: Finished difference Result 1667 states and 2823 transitions. [2023-04-02 03:02:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 03:02:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 97 [2023-04-02 03:02:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:04,225 INFO L225 Difference]: With dead ends: 1667 [2023-04-02 03:02:04,225 INFO L226 Difference]: Without dead ends: 1058 [2023-04-02 03:02:04,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:02:04,227 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 1799 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 3898 mSolverCounterSat, 659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1936 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 4557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 659 IncrementalHoareTripleChecker+Valid, 3898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:04,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1936 Valid, 648 Invalid, 4557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [659 Valid, 3898 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 03:02:04,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2023-04-02 03:02:04,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 619. [2023-04-02 03:02:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 453 states have (on average 1.596026490066225) internal successors, (723), 476 states have internal predecessors, (723), 121 states have call successors, (121), 47 states have call predecessors, (121), 44 states have return successors, (114), 108 states have call predecessors, (114), 113 states have call successors, (114) [2023-04-02 03:02:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 958 transitions. [2023-04-02 03:02:04,347 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 958 transitions. Word has length 97 [2023-04-02 03:02:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:04,347 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 958 transitions. [2023-04-02 03:02:04,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 4 states have internal predecessors, (61), 3 states have call successors, (20), 7 states have call predecessors, (20), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-02 03:02:04,347 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 958 transitions. [2023-04-02 03:02:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-04-02 03:02:04,348 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:04,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:04,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:02:04,348 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:04,349 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:04,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1378919125, now seen corresponding path program 1 times [2023-04-02 03:02:04,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:04,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581927893] [2023-04-02 03:02:04,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:04,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:04,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:04,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:04,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:04,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:02:04,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:04,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:04,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:02:04,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:04,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581927893] [2023-04-02 03:02:04,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581927893] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:04,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:04,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:02:04,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491201004] [2023-04-02 03:02:04,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:04,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:02:04,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:04,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:02:04,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:02:04,954 INFO L87 Difference]: Start difference. First operand 619 states and 958 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:10,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:10,919 INFO L93 Difference]: Finished difference Result 1604 states and 2746 transitions. [2023-04-02 03:02:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 03:02:10,920 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 97 [2023-04-02 03:02:10,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:10,924 INFO L225 Difference]: With dead ends: 1604 [2023-04-02 03:02:10,924 INFO L226 Difference]: Without dead ends: 1068 [2023-04-02 03:02:10,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:02:10,927 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 1792 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 8148 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 8834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 8148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:10,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 1154 Invalid, 8834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 8148 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-04-02 03:02:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2023-04-02 03:02:11,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 622. [2023-04-02 03:02:11,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 454 states have (on average 1.5947136563876652) internal successors, (724), 479 states have internal predecessors, (724), 122 states have call successors, (122), 47 states have call predecessors, (122), 45 states have return successors, (116), 108 states have call predecessors, (116), 114 states have call successors, (116) [2023-04-02 03:02:11,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 962 transitions. [2023-04-02 03:02:11,083 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 962 transitions. Word has length 97 [2023-04-02 03:02:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:11,083 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 962 transitions. [2023-04-02 03:02:11,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 7 states have internal predecessors, (61), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:11,083 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 962 transitions. [2023-04-02 03:02:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-04-02 03:02:11,085 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:11,085 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:11,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 03:02:11,085 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:11,085 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:11,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1322095092, now seen corresponding path program 1 times [2023-04-02 03:02:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:11,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686072188] [2023-04-02 03:02:11,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:11,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:11,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:11,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-04-02 03:02:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:11,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:11,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:02:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686072188] [2023-04-02 03:02:11,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686072188] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:11,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:11,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:02:11,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809371726] [2023-04-02 03:02:11,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:11,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:02:11,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:11,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:02:11,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:02:11,668 INFO L87 Difference]: Start difference. First operand 622 states and 962 transitions. Second operand has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:19,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:19,758 INFO L93 Difference]: Finished difference Result 1608 states and 2757 transitions. [2023-04-02 03:02:19,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 03:02:19,758 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) Word has length 98 [2023-04-02 03:02:19,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:19,762 INFO L225 Difference]: With dead ends: 1608 [2023-04-02 03:02:19,763 INFO L226 Difference]: Without dead ends: 1072 [2023-04-02 03:02:19,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2023-04-02 03:02:19,764 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1222 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 8035 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 8473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 8035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:19,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1362 Valid, 1161 Invalid, 8473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [438 Valid, 8035 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-02 03:02:19,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2023-04-02 03:02:20,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 625. [2023-04-02 03:02:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 455 states have (on average 1.5934065934065933) internal successors, (725), 482 states have internal predecessors, (725), 123 states have call successors, (123), 47 states have call predecessors, (123), 46 states have return successors, (118), 108 states have call predecessors, (118), 115 states have call successors, (118) [2023-04-02 03:02:20,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 966 transitions. [2023-04-02 03:02:20,034 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 966 transitions. Word has length 98 [2023-04-02 03:02:20,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:20,035 INFO L495 AbstractCegarLoop]: Abstraction has 625 states and 966 transitions. [2023-04-02 03:02:20,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.166666666666667) internal successors, (62), 7 states have internal predecessors, (62), 5 states have call successors, (20), 7 states have call predecessors, (20), 4 states have return successors, (16), 3 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:20,035 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 966 transitions. [2023-04-02 03:02:20,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-04-02 03:02:20,036 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:20,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:20,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 03:02:20,036 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:20,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:20,036 INFO L85 PathProgramCache]: Analyzing trace with hash -929413108, now seen corresponding path program 1 times [2023-04-02 03:02:20,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:20,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913541766] [2023-04-02 03:02:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:20,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:20,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:02:20,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:21,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:21,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:21,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:21,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:02:21,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:21,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913541766] [2023-04-02 03:02:21,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913541766] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:21,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:21,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:02:21,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502545189] [2023-04-02 03:02:21,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:21,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:02:21,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:21,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:02:21,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:02:21,088 INFO L87 Difference]: Start difference. First operand 625 states and 966 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 6 states have internal predecessors, (63), 6 states have call successors, (20), 8 states have call predecessors, (20), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:31,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:31,242 INFO L93 Difference]: Finished difference Result 2448 states and 4290 transitions. [2023-04-02 03:02:31,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:02:31,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 6 states have internal predecessors, (63), 6 states have call successors, (20), 8 states have call predecessors, (20), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 99 [2023-04-02 03:02:31,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:31,258 INFO L225 Difference]: With dead ends: 2448 [2023-04-02 03:02:31,258 INFO L226 Difference]: Without dead ends: 1919 [2023-04-02 03:02:31,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:02:31,260 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 5164 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 5567 mSolverCounterSat, 2101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5295 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 7668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2101 IncrementalHoareTripleChecker+Valid, 5567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:31,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5295 Valid, 880 Invalid, 7668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2101 Valid, 5567 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-04-02 03:02:31,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2023-04-02 03:02:31,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1139. [2023-04-02 03:02:31,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 842 states have (on average 1.6235154394299287) internal successors, (1367), 878 states have internal predecessors, (1367), 220 states have call successors, (220), 74 states have call predecessors, (220), 76 states have return successors, (225), 196 states have call predecessors, (225), 212 states have call successors, (225) [2023-04-02 03:02:31,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1812 transitions. [2023-04-02 03:02:31,523 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1812 transitions. Word has length 99 [2023-04-02 03:02:31,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:31,523 INFO L495 AbstractCegarLoop]: Abstraction has 1139 states and 1812 transitions. [2023-04-02 03:02:31,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 6 states have internal predecessors, (63), 6 states have call successors, (20), 8 states have call predecessors, (20), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2023-04-02 03:02:31,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1812 transitions. [2023-04-02 03:02:31,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-04-02 03:02:31,526 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:31,526 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:31,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-04-02 03:02:31,526 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:31,526 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:31,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1064165716, now seen corresponding path program 1 times [2023-04-02 03:02:31,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:31,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234600367] [2023-04-02 03:02:31,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:31,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:32,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:02:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:32,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:02:32,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:02:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:02:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:32,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 03:02:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 03:02:32,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:02:32,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234600367] [2023-04-02 03:02:32,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234600367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:32,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:32,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-04-02 03:02:32,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054970882] [2023-04-02 03:02:32,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:32,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-02 03:02:32,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:32,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-02 03:02:32,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2023-04-02 03:02:32,721 INFO L87 Difference]: Start difference. First operand 1139 states and 1812 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:02:47,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:47,335 INFO L93 Difference]: Finished difference Result 4004 states and 7682 transitions. [2023-04-02 03:02:47,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-04-02 03:02:47,335 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) Word has length 149 [2023-04-02 03:02:47,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:47,350 INFO L225 Difference]: With dead ends: 4004 [2023-04-02 03:02:47,350 INFO L226 Difference]: Without dead ends: 2962 [2023-04-02 03:02:47,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 877 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=692, Invalid=2170, Unknown=0, NotChecked=0, Total=2862 [2023-04-02 03:02:47,355 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 6067 mSDsluCounter, 1482 mSDsCounter, 0 mSdLazyCounter, 12286 mSolverCounterSat, 2382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6154 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 14668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2382 IncrementalHoareTripleChecker+Valid, 12286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:47,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6154 Valid, 1644 Invalid, 14668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2382 Valid, 12286 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-04-02 03:02:47,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2962 states. [2023-04-02 03:02:47,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2962 to 1749. [2023-04-02 03:02:47,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1288 states have (on average 1.6164596273291925) internal successors, (2082), 1343 states have internal predecessors, (2082), 336 states have call successors, (336), 108 states have call predecessors, (336), 124 states have return successors, (409), 317 states have call predecessors, (409), 328 states have call successors, (409) [2023-04-02 03:02:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2827 transitions. [2023-04-02 03:02:47,857 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2827 transitions. Word has length 149 [2023-04-02 03:02:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:47,857 INFO L495 AbstractCegarLoop]: Abstraction has 1749 states and 2827 transitions. [2023-04-02 03:02:47,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 7 states have internal predecessors, (95), 5 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 6 states have call predecessors, (24), 5 states have call successors, (24) [2023-04-02 03:02:47,857 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2827 transitions. [2023-04-02 03:02:47,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 03:02:47,860 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:47,860 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:47,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 03:02:47,860 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:47,861 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1928940268, now seen corresponding path program 1 times [2023-04-02 03:02:47,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:47,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346305310] [2023-04-02 03:02:47,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:47,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:48,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:48,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:02:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:02:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:02:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:02:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:02:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 03:02:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 03:02:48,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:02:48,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:48,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346305310] [2023-04-02 03:02:48,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346305310] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:48,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:48,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:02:48,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304750136] [2023-04-02 03:02:48,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:48,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:02:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:48,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:02:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:02:48,874 INFO L87 Difference]: Start difference. First operand 1749 states and 2827 transitions. Second operand has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:03:06,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:03:06,449 INFO L93 Difference]: Finished difference Result 6777 states and 14487 transitions. [2023-04-02 03:03:06,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-02 03:03:06,450 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 151 [2023-04-02 03:03:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:03:06,479 INFO L225 Difference]: With dead ends: 6777 [2023-04-02 03:03:06,479 INFO L226 Difference]: Without dead ends: 5126 [2023-04-02 03:03:06,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=631, Invalid=1919, Unknown=0, NotChecked=0, Total=2550 [2023-04-02 03:03:06,486 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 7206 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 10949 mSolverCounterSat, 2669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7299 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 13618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2669 IncrementalHoareTripleChecker+Valid, 10949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:03:06,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7299 Valid, 1721 Invalid, 13618 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2669 Valid, 10949 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2023-04-02 03:03:06,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5126 states. [2023-04-02 03:03:07,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5126 to 2956. [2023-04-02 03:03:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2956 states, 2171 states have (on average 1.6158452326116997) internal successors, (3508), 2259 states have internal predecessors, (3508), 570 states have call successors, (570), 176 states have call predecessors, (570), 214 states have return successors, (824), 560 states have call predecessors, (824), 562 states have call successors, (824) [2023-04-02 03:03:07,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2956 states to 2956 states and 4902 transitions. [2023-04-02 03:03:07,396 INFO L78 Accepts]: Start accepts. Automaton has 2956 states and 4902 transitions. Word has length 151 [2023-04-02 03:03:07,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:03:07,396 INFO L495 AbstractCegarLoop]: Abstraction has 2956 states and 4902 transitions. [2023-04-02 03:03:07,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.466666666666667) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:03:07,397 INFO L276 IsEmpty]: Start isEmpty. Operand 2956 states and 4902 transitions. [2023-04-02 03:03:07,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-04-02 03:03:07,400 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:03:07,400 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:03:07,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 03:03:07,400 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:03:07,400 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:03:07,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2059877295, now seen corresponding path program 1 times [2023-04-02 03:03:07,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:03:07,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113077305] [2023-04-02 03:03:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:07,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:03:07,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:03:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:07,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:03:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:03:07,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:03:08,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:03:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:03:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:03:08,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:03:08,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:03:08,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:03:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 03:03:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 03:03:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:03:08,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:03:08,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113077305] [2023-04-02 03:03:08,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113077305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:03:08,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:03:08,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-04-02 03:03:08,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880606482] [2023-04-02 03:03:08,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:03:08,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-04-02 03:03:08,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:03:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-04-02 03:03:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-04-02 03:03:08,653 INFO L87 Difference]: Start difference. First operand 2956 states and 4902 transitions. Second operand has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 11 states have internal predecessors, (97), 6 states have call successors, (28), 11 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-02 03:03:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:03:24,024 INFO L93 Difference]: Finished difference Result 9269 states and 20048 transitions. [2023-04-02 03:03:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-02 03:03:24,025 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 11 states have internal predecessors, (97), 6 states have call successors, (28), 11 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) Word has length 151 [2023-04-02 03:03:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:03:24,057 INFO L225 Difference]: With dead ends: 9269 [2023-04-02 03:03:24,058 INFO L226 Difference]: Without dead ends: 6409 [2023-04-02 03:03:24,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 970 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=670, Invalid=2990, Unknown=0, NotChecked=0, Total=3660 [2023-04-02 03:03:24,073 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 4250 mSDsluCounter, 2086 mSDsCounter, 0 mSdLazyCounter, 17710 mSolverCounterSat, 1834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 19544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1834 IncrementalHoareTripleChecker+Valid, 17710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:03:24,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 2293 Invalid, 19544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1834 Valid, 17710 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-04-02 03:03:24,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6409 states. [2023-04-02 03:03:25,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6409 to 3919. [2023-04-02 03:03:25,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 2841 states have (on average 1.5765575501583948) internal successors, (4479), 2945 states have internal predecessors, (4479), 755 states have call successors, (755), 248 states have call predecessors, (755), 322 states have return successors, (1180), 765 states have call predecessors, (1180), 747 states have call successors, (1180) [2023-04-02 03:03:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 6414 transitions. [2023-04-02 03:03:25,380 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 6414 transitions. Word has length 151 [2023-04-02 03:03:25,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:03:25,380 INFO L495 AbstractCegarLoop]: Abstraction has 3919 states and 6414 transitions. [2023-04-02 03:03:25,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.105263157894737) internal successors, (97), 11 states have internal predecessors, (97), 6 states have call successors, (28), 11 states have call predecessors, (28), 6 states have return successors, (24), 7 states have call predecessors, (24), 6 states have call successors, (24) [2023-04-02 03:03:25,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 6414 transitions. [2023-04-02 03:03:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-04-02 03:03:25,383 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:03:25,383 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:03:25,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 03:03:25,384 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:03:25,384 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:03:25,384 INFO L85 PathProgramCache]: Analyzing trace with hash -742412678, now seen corresponding path program 1 times [2023-04-02 03:03:25,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:03:25,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490331682] [2023-04-02 03:03:25,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:25,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:03:25,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:03:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:03:25,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:03:25,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:25,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:03:25,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:26,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:03:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:03:26,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:03:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:03:26,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:03:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:03:26,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 03:03:26,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 03:03:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:26,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:03:26,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:03:26,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490331682] [2023-04-02 03:03:26,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490331682] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:03:26,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:03:26,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:03:26,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115422644] [2023-04-02 03:03:26,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:03:26,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:03:26,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:03:26,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:03:26,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:03:26,514 INFO L87 Difference]: Start difference. First operand 3919 states and 6414 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:03:44,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:03:44,272 INFO L93 Difference]: Finished difference Result 15978 states and 34856 transitions. [2023-04-02 03:03:44,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-04-02 03:03:44,272 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) Word has length 154 [2023-04-02 03:03:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:03:44,369 INFO L225 Difference]: With dead ends: 15978 [2023-04-02 03:03:44,369 INFO L226 Difference]: Without dead ends: 12160 [2023-04-02 03:03:44,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=631, Invalid=1919, Unknown=0, NotChecked=0, Total=2550 [2023-04-02 03:03:44,421 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 7196 mSDsluCounter, 1229 mSDsCounter, 0 mSdLazyCounter, 10727 mSolverCounterSat, 2679 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7291 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 13406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2679 IncrementalHoareTripleChecker+Valid, 10727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-04-02 03:03:44,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7291 Valid, 1414 Invalid, 13406 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2679 Valid, 10727 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2023-04-02 03:03:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12160 states. [2023-04-02 03:03:46,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12160 to 7674. [2023-04-02 03:03:46,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7674 states, 5578 states have (on average 1.5808533524560775) internal successors, (8818), 5771 states have internal predecessors, (8818), 1466 states have call successors, (1466), 475 states have call predecessors, (1466), 629 states have return successors, (2432), 1507 states have call predecessors, (2432), 1458 states have call successors, (2432) [2023-04-02 03:03:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7674 states to 7674 states and 12716 transitions. [2023-04-02 03:03:46,699 INFO L78 Accepts]: Start accepts. Automaton has 7674 states and 12716 transitions. Word has length 154 [2023-04-02 03:03:46,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:03:46,699 INFO L495 AbstractCegarLoop]: Abstraction has 7674 states and 12716 transitions. [2023-04-02 03:03:46,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (28), 10 states have call predecessors, (28), 5 states have return successors, (24), 5 states have call predecessors, (24), 4 states have call successors, (24) [2023-04-02 03:03:46,699 INFO L276 IsEmpty]: Start isEmpty. Operand 7674 states and 12716 transitions. [2023-04-02 03:03:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 03:03:46,702 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:03:46,702 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:03:46,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 03:03:46,703 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:03:46,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:03:46,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1107155970, now seen corresponding path program 1 times [2023-04-02 03:03:46,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:03:46,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448435815] [2023-04-02 03:03:46,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:46,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:03:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:03:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:47,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:03:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:03:47,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:03:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:47,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:03:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:03:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:03:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:03:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:03:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:03:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 03:03:47,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 03:03:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:47,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:03:47,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:03:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448435815] [2023-04-02 03:03:47,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448435815] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:03:47,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706690601] [2023-04-02 03:03:47,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:47,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:03:47,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:03:47,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:03:47,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 03:03:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:47,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 2721 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 03:03:47,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:03:48,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 03:03:48,029 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:03:48,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706690601] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:03:48,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:03:48,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [17] total 18 [2023-04-02 03:03:48,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191177051] [2023-04-02 03:03:48,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:03:48,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 03:03:48,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:03:48,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 03:03:48,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-04-02 03:03:48,031 INFO L87 Difference]: Start difference. First operand 7674 states and 12716 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 03:03:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:03:51,954 INFO L93 Difference]: Finished difference Result 21514 states and 36651 transitions. [2023-04-02 03:03:51,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 03:03:51,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 159 [2023-04-02 03:03:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:03:52,013 INFO L225 Difference]: With dead ends: 21514 [2023-04-02 03:03:52,013 INFO L226 Difference]: Without dead ends: 13941 [2023-04-02 03:03:52,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2023-04-02 03:03:52,039 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 914 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 914 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:03:52,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [914 Valid, 1806 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 03:03:52,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13941 states. [2023-04-02 03:03:55,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13941 to 13901. [2023-04-02 03:03:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13901 states, 10100 states have (on average 1.5751485148514852) internal successors, (15909), 10464 states have internal predecessors, (15909), 2650 states have call successors, (2650), 867 states have call predecessors, (2650), 1150 states have return successors, (4667), 2729 states have call predecessors, (4667), 2642 states have call successors, (4667) [2023-04-02 03:03:55,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13901 states to 13901 states and 23226 transitions. [2023-04-02 03:03:55,940 INFO L78 Accepts]: Start accepts. Automaton has 13901 states and 23226 transitions. Word has length 159 [2023-04-02 03:03:55,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:03:55,940 INFO L495 AbstractCegarLoop]: Abstraction has 13901 states and 23226 transitions. [2023-04-02 03:03:55,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2023-04-02 03:03:55,940 INFO L276 IsEmpty]: Start isEmpty. Operand 13901 states and 23226 transitions. [2023-04-02 03:03:55,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 03:03:55,943 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:03:55,944 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:03:55,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 03:03:56,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-04-02 03:03:56,150 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:03:56,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:03:56,151 INFO L85 PathProgramCache]: Analyzing trace with hash -2011109747, now seen corresponding path program 1 times [2023-04-02 03:03:56,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:03:56,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524516710] [2023-04-02 03:03:56,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:56,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:03:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:03:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:03:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:03:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:03:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:03:57,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:03:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:03:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:03:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:03:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:03:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:03:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:03:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 03:03:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:03:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 03:03:57,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 03:03:57,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:03:57,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:03:57,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:03:57,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524516710] [2023-04-02 03:03:57,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524516710] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:03:57,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578380251] [2023-04-02 03:03:57,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:03:57,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:03:57,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:03:57,441 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:03:57,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 03:03:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:03:57,875 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 03:03:57,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:03:58,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:03:58,046 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:03:58,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578380251] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:03:58,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:03:58,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 21 [2023-04-02 03:03:58,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811028543] [2023-04-02 03:03:58,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:03:58,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 03:03:58,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:03:58,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 03:03:58,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2023-04-02 03:03:58,047 INFO L87 Difference]: Start difference. First operand 13901 states and 23226 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 03:04:07,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:04:07,220 INFO L93 Difference]: Finished difference Result 33843 states and 58508 transitions. [2023-04-02 03:04:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 03:04:07,221 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) Word has length 163 [2023-04-02 03:04:07,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:04:07,327 INFO L225 Difference]: With dead ends: 33843 [2023-04-02 03:04:07,327 INFO L226 Difference]: Without dead ends: 22193 [2023-04-02 03:04:07,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2023-04-02 03:04:07,366 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 3130 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 4957 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3215 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 5832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 4957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:04:07,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3215 Valid, 628 Invalid, 5832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 4957 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-02 03:04:07,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22193 states. [2023-04-02 03:04:13,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22193 to 22039. [2023-04-02 03:04:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22039 states, 15970 states have (on average 1.5479649342517219) internal successors, (24721), 16533 states have internal predecessors, (24721), 4173 states have call successors, (4173), 1431 states have call predecessors, (4173), 1895 states have return successors, (8257), 4314 states have call predecessors, (8257), 4165 states have call successors, (8257) [2023-04-02 03:04:13,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22039 states to 22039 states and 37151 transitions. [2023-04-02 03:04:13,274 INFO L78 Accepts]: Start accepts. Automaton has 22039 states and 37151 transitions. Word has length 163 [2023-04-02 03:04:13,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:04:13,274 INFO L495 AbstractCegarLoop]: Abstraction has 22039 states and 37151 transitions. [2023-04-02 03:04:13,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (29), 5 states have call predecessors, (29), 4 states have return successors, (25), 6 states have call predecessors, (25), 5 states have call successors, (25) [2023-04-02 03:04:13,275 INFO L276 IsEmpty]: Start isEmpty. Operand 22039 states and 37151 transitions. [2023-04-02 03:04:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-04-02 03:04:13,278 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:04:13,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:04:13,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 03:04:13,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-04-02 03:04:13,486 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:04:13,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:04:13,486 INFO L85 PathProgramCache]: Analyzing trace with hash 354461638, now seen corresponding path program 1 times [2023-04-02 03:04:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:04:13,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761585361] [2023-04-02 03:04:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:04:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:04:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:04:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:04:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:04:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:04:13,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:04:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:13,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:04:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:04:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:04:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:04:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:04:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 03:04:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:04:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:04:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:04:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 03:04:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:04:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 03:04:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 03:04:14,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 03:04:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 03:04:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:04:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:14,635 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:04:14,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:04:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761585361] [2023-04-02 03:04:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761585361] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 03:04:14,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004401110] [2023-04-02 03:04:14,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:04:14,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 03:04:14,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 03:04:14,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 03:04:14,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 03:04:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:04:15,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 2754 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-02 03:04:15,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 03:04:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 03:04:15,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 03:04:15,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004401110] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:04:15,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 03:04:15,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [17] total 20 [2023-04-02 03:04:15,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445932807] [2023-04-02 03:04:15,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:04:15,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 03:04:15,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:04:15,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 03:04:15,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2023-04-02 03:04:15,200 INFO L87 Difference]: Start difference. First operand 22039 states and 37151 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (30), 5 states have call predecessors, (30), 4 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 03:04:26,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:04:26,478 INFO L93 Difference]: Finished difference Result 50259 states and 87369 transitions. [2023-04-02 03:04:26,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 03:04:26,478 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (30), 5 states have call predecessors, (30), 4 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 165 [2023-04-02 03:04:26,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:04:26,626 INFO L225 Difference]: With dead ends: 50259 [2023-04-02 03:04:26,627 INFO L226 Difference]: Without dead ends: 30471 [2023-04-02 03:04:26,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2023-04-02 03:04:26,685 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 3190 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 4706 mSolverCounterSat, 902 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3279 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 5608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 902 IncrementalHoareTripleChecker+Valid, 4706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:04:26,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3279 Valid, 543 Invalid, 5608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [902 Valid, 4706 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-02 03:04:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30471 states.