/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_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:58:55,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:58:55,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:58:55,490 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:58:55,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:58:55,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:58:55,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:58:55,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:58:55,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:58:55,508 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:58:55,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:58:55,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:58:55,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:58:55,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:58:55,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:58:55,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:58:55,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:58:55,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:58:55,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:58:55,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:58:55,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:58:55,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:58:55,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:58:55,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:58:55,534 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:58:55,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:58:55,535 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:58:55,536 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:58:55,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:58:55,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:58:55,538 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:58:55,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:58:55,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:58:55,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:58:55,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:58:55,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:58:55,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:58:55,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:58:55,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:58:55,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:58:55,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:58:55,544 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 02:58:55,580 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:58:55,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:58:55,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:58:55,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:58:55,582 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:58:55,582 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:58:55,582 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:58:55,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:58:55,583 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:58:55,583 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:58:55,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:58:55,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:58:55,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:58:55,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:58:55,586 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:58:55,586 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:58:55,586 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:58:55,587 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:58:55,587 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:58:55,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:58:55,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:58:55,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:58:55,839 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:58:55,840 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:58:55,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2023-04-02 02:58:56,978 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:58:57,302 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:58:57,302 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product09.cil.c [2023-04-02 02:58:57,321 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea635d794/d47992b342f042e8b5e8e061d2cd073a/FLAG3bbdd2ad6 [2023-04-02 02:58:57,336 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea635d794/d47992b342f042e8b5e8e061d2cd073a [2023-04-02 02:58:57,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:58:57,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:58:57,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:58:57,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:58:57,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:58:57,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:57,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8299a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57, skipping insertion in model container [2023-04-02 02:58:57,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:57,355 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:58:57,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:58:57,689 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_product09.cil.c[28842,28855] [2023-04-02 02:58:57,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:58:57,838 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:58:57,879 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_product09.cil.c[28842,28855] [2023-04-02 02:58:57,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:58:57,976 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:58:57,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57 WrapperNode [2023-04-02 02:58:57,977 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:58:57,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:58:57,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:58:57,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:58:57,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:57,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,121 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:58:58,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:58:58,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:58:58,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:58:58,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (1/1) ... [2023-04-02 02:58:58,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:58:58,162 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:58:58,179 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 02:58:58,199 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 02:58:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:58:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:58:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:58:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:58:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:58:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__3 [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__4 [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:58:58,226 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:58:58,227 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:58:58,228 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:58:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:58:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:58:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:58:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:58:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:58:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:58:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:58:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:58:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:58:58,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:58:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:58:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:58:58,232 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:58:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:58:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:58:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:58:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:58:58,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:58:58,233 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:58:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:58:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:58:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:58:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__4 [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:58:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2023-04-02 02:58:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__3 [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:58:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:58:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:58:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:58:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:58:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:58:58,239 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:58:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:58:58,247 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:58:58,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:58:58,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:58:58,515 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:58:58,518 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:58:59,675 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:58:59,686 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:58:59,686 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:58:59,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:58:59 BoogieIcfgContainer [2023-04-02 02:58:59,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:58:59,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:58:59,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:58:59,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:58:59,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:58:57" (1/3) ... [2023-04-02 02:58:59,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b5d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:58:59, skipping insertion in model container [2023-04-02 02:58:59,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:58:57" (2/3) ... [2023-04-02 02:58:59,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28b5d206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:58:59, skipping insertion in model container [2023-04-02 02:58:59,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:58:59" (3/3) ... [2023-04-02 02:58:59,696 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product09.cil.c [2023-04-02 02:58:59,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:58:59,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:58:59,765 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:58:59,771 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;@2b4c9069, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:58:59,771 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:58:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 737 states, 515 states have (on average 1.6504854368932038) internal successors, (850), 542 states have internal predecessors, (850), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 154 states have call predecessors, (163), 163 states have call successors, (163) [2023-04-02 02:58:59,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-04-02 02:58:59,801 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:58:59,801 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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:58:59,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:58:59,806 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:58:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash 877393480, now seen corresponding path program 1 times [2023-04-02 02:58:59,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:58:59,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763504522] [2023-04-02 02:58:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:58:59,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:00,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:00,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:00,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:59:01,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-04-02 02:59:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:01,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:59:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:01,234 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 02:59:01,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:01,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763504522] [2023-04-02 02:59:01,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763504522] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:01,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:01,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:59:01,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502782385] [2023-04-02 02:59:01,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:01,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:59:01,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:01,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:59:01,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:59:01,276 INFO L87 Difference]: Start difference. First operand has 737 states, 515 states have (on average 1.6504854368932038) internal successors, (850), 542 states have internal predecessors, (850), 163 states have call successors, (163), 46 states have call predecessors, (163), 46 states have return successors, (163), 154 states have call predecessors, (163), 163 states have call successors, (163) Second operand has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:10,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:10,294 INFO L93 Difference]: Finished difference Result 1694 states and 3061 transitions. [2023-04-02 02:59:10,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:59:10,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 107 [2023-04-02 02:59:10,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:10,325 INFO L225 Difference]: With dead ends: 1694 [2023-04-02 02:59:10,326 INFO L226 Difference]: Without dead ends: 1106 [2023-04-02 02:59:10,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:59:10,337 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 3012 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 4510 mSolverCounterSat, 1164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 5674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1164 IncrementalHoareTripleChecker+Valid, 4510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:10,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 754 Invalid, 5674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1164 Valid, 4510 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 02:59:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-04-02 02:59:10,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 577. [2023-04-02 02:59:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 430 states have (on average 1.6837209302325582) internal successors, (724), 449 states have internal predecessors, (724), 108 states have call successors, (108), 42 states have call predecessors, (108), 38 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2023-04-02 02:59:10,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 932 transitions. [2023-04-02 02:59:10,633 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 932 transitions. Word has length 107 [2023-04-02 02:59:10,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:10,634 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 932 transitions. [2023-04-02 02:59:10,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (23), 8 states have call predecessors, (23), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:10,634 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 932 transitions. [2023-04-02 02:59:10,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-02 02:59:10,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:10,640 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:10,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 02:59:10,641 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:10,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:10,642 INFO L85 PathProgramCache]: Analyzing trace with hash -574006618, now seen corresponding path program 1 times [2023-04-02 02:59:10,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:10,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317666677] [2023-04-02 02:59:10,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:10,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:10,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:10,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:11,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:59:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:11,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:11,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:59:11,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:11,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:11,549 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 02:59:11,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:11,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317666677] [2023-04-02 02:59:11,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317666677] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:11,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:11,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:59:11,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584943427] [2023-04-02 02:59:11,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:11,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:59:11,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:11,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:59:11,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:59:11,554 INFO L87 Difference]: Start difference. First operand 577 states and 932 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:22,921 INFO L93 Difference]: Finished difference Result 1657 states and 3018 transitions. [2023-04-02 02:59:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 02:59:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 110 [2023-04-02 02:59:22,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:22,930 INFO L225 Difference]: With dead ends: 1657 [2023-04-02 02:59:22,930 INFO L226 Difference]: Without dead ends: 1117 [2023-04-02 02:59:22,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2023-04-02 02:59:22,934 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1330 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 8509 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1417 SdHoareTripleChecker+Valid, 1155 SdHoareTripleChecker+Invalid, 9057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 8509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:22,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1417 Valid, 1155 Invalid, 9057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [548 Valid, 8509 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2023-04-02 02:59:22,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2023-04-02 02:59:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 581. [2023-04-02 02:59:23,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 433 states have (on average 1.6766743648960738) internal successors, (726), 452 states have internal predecessors, (726), 108 states have call successors, (108), 42 states have call predecessors, (108), 39 states have return successors, (102), 98 states have call predecessors, (102), 100 states have call successors, (102) [2023-04-02 02:59:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 936 transitions. [2023-04-02 02:59:23,106 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 936 transitions. Word has length 110 [2023-04-02 02:59:23,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:23,106 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 936 transitions. [2023-04-02 02:59:23,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (23), 8 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:59:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 936 transitions. [2023-04-02 02:59:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 02:59:23,110 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:23,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:59:23,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 02:59:23,110 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:23,111 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:23,111 INFO L85 PathProgramCache]: Analyzing trace with hash -486737685, now seen corresponding path program 1 times [2023-04-02 02:59:23,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:23,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520153192] [2023-04-02 02:59:23,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:23,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:23,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:23,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:59:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:23,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:23,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:23,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:59:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-04-02 02:59:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:24,109 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 02:59:24,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:24,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520153192] [2023-04-02 02:59:24,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520153192] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:24,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:24,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:59:24,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280424701] [2023-04-02 02:59:24,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:24,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:59:24,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:24,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:59:24,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:59:24,114 INFO L87 Difference]: Start difference. First operand 581 states and 936 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:59:43,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:59:43,284 INFO L93 Difference]: Finished difference Result 3385 states and 6559 transitions. [2023-04-02 02:59:43,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-04-02 02:59:43,285 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 115 [2023-04-02 02:59:43,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:59:43,312 INFO L225 Difference]: With dead ends: 3385 [2023-04-02 02:59:43,312 INFO L226 Difference]: Without dead ends: 2841 [2023-04-02 02:59:43,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1098 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=797, Invalid=2283, Unknown=0, NotChecked=0, Total=3080 [2023-04-02 02:59:43,324 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 6384 mSDsluCounter, 976 mSDsCounter, 0 mSdLazyCounter, 9470 mSolverCounterSat, 3261 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6468 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 12731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3261 IncrementalHoareTripleChecker+Valid, 9470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:59:43,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6468 Valid, 1131 Invalid, 12731 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3261 Valid, 9470 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2023-04-02 02:59:43,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2023-04-02 02:59:43,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 1448. [2023-04-02 02:59:43,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1448 states, 1079 states have (on average 1.6376274328081557) internal successors, (1767), 1126 states have internal predecessors, (1767), 271 states have call successors, (271), 97 states have call predecessors, (271), 97 states have return successors, (304), 260 states have call predecessors, (304), 263 states have call successors, (304) [2023-04-02 02:59:43,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1448 states to 1448 states and 2342 transitions. [2023-04-02 02:59:43,817 INFO L78 Accepts]: Start accepts. Automaton has 1448 states and 2342 transitions. Word has length 115 [2023-04-02 02:59:43,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:59:43,817 INFO L495 AbstractCegarLoop]: Abstraction has 1448 states and 2342 transitions. [2023-04-02 02:59:43,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 8 states have internal predecessors, (73), 4 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:59:43,817 INFO L276 IsEmpty]: Start isEmpty. Operand 1448 states and 2342 transitions. [2023-04-02 02:59:43,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 02:59:43,821 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:59:43,821 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, 1, 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 02:59:43,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 02:59:43,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:59:43,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:59:43,822 INFO L85 PathProgramCache]: Analyzing trace with hash -470110970, now seen corresponding path program 1 times [2023-04-02 02:59:43,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:59:43,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517437054] [2023-04-02 02:59:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:59:43,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:59:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:44,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:59:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:59:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:59:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:59:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 02:59:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 02:59:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:59:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:44,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:59:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:59:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-04-02 02:59:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:59:44,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:59:44,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-02 02:59:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 02:59:44,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:59:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:59:44,739 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 02:59:44,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:59:44,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517437054] [2023-04-02 02:59:44,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517437054] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:59:44,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:59:44,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 02:59:44,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603950759] [2023-04-02 02:59:44,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:59:44,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 02:59:44,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:59:44,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 02:59:44,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:59:44,742 INFO L87 Difference]: Start difference. First operand 1448 states and 2342 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-04-02 03:00:00,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:00,867 INFO L93 Difference]: Finished difference Result 4478 states and 8288 transitions. [2023-04-02 03:00:00,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-04-02 03:00:00,868 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) Word has length 124 [2023-04-02 03:00:00,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:00,889 INFO L225 Difference]: With dead ends: 4478 [2023-04-02 03:00:00,889 INFO L226 Difference]: Without dead ends: 2893 [2023-04-02 03:00:00,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 648 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=545, Invalid=1711, Unknown=0, NotChecked=0, Total=2256 [2023-04-02 03:00:00,900 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 7554 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 11967 mSolverCounterSat, 2782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7628 SdHoareTripleChecker+Valid, 1899 SdHoareTripleChecker+Invalid, 14749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2782 IncrementalHoareTripleChecker+Valid, 11967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:00,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7628 Valid, 1899 Invalid, 14749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2782 Valid, 11967 Invalid, 0 Unknown, 0 Unchecked, 11.9s Time] [2023-04-02 03:00:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2023-04-02 03:00:01,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 1523. [2023-04-02 03:00:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1523 states, 1137 states have (on average 1.6086191732629727) internal successors, (1829), 1186 states have internal predecessors, (1829), 283 states have call successors, (283), 102 states have call predecessors, (283), 102 states have return successors, (325), 270 states have call predecessors, (325), 275 states have call successors, (325) [2023-04-02 03:00:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1523 states to 1523 states and 2437 transitions. [2023-04-02 03:00:01,435 INFO L78 Accepts]: Start accepts. Automaton has 1523 states and 2437 transitions. Word has length 124 [2023-04-02 03:00:01,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:01,436 INFO L495 AbstractCegarLoop]: Abstraction has 1523 states and 2437 transitions. [2023-04-02 03:00:01,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 10 states have internal predecessors, (80), 5 states have call successors, (24), 8 states have call predecessors, (24), 6 states have return successors, (20), 4 states have call predecessors, (20), 5 states have call successors, (20) [2023-04-02 03:00:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1523 states and 2437 transitions. [2023-04-02 03:00:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-02 03:00:01,439 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:01,439 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:01,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 03:00:01,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:01,440 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:01,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1229542762, now seen corresponding path program 1 times [2023-04-02 03:00:01,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:01,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734542228] [2023-04-02 03:00:01,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:01,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:01,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:01,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:01,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:01,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:01,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 03:00:02,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 03:00:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:02,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:02,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-02 03:00:02,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:02,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734542228] [2023-04-02 03:00:02,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734542228] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:02,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:02,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 03:00:02,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822536372] [2023-04-02 03:00:02,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:02,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 03:00:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:02,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 03:00:02,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-04-02 03:00:02,315 INFO L87 Difference]: Start difference. First operand 1523 states and 2437 transitions. Second operand has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:14,227 INFO L93 Difference]: Finished difference Result 4425 states and 8293 transitions. [2023-04-02 03:00:14,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:00:14,228 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 127 [2023-04-02 03:00:14,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:14,251 INFO L225 Difference]: With dead ends: 4425 [2023-04-02 03:00:14,251 INFO L226 Difference]: Without dead ends: 2939 [2023-04-02 03:00:14,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 03:00:14,260 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 1622 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 10605 mSolverCounterSat, 645 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 11250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 645 IncrementalHoareTripleChecker+Valid, 10605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:14,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 1367 Invalid, 11250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [645 Valid, 10605 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-04-02 03:00:14,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2023-04-02 03:00:14,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 1547. [2023-04-02 03:00:14,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1149 states have (on average 1.6013925152306354) internal successors, (1840), 1206 states have internal predecessors, (1840), 287 states have call successors, (287), 102 states have call predecessors, (287), 110 states have return successors, (357), 274 states have call predecessors, (357), 279 states have call successors, (357) [2023-04-02 03:00:14,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2484 transitions. [2023-04-02 03:00:14,809 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2484 transitions. Word has length 127 [2023-04-02 03:00:14,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:14,810 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2484 transitions. [2023-04-02 03:00:14,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 5.785714285714286) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 5 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:14,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2484 transitions. [2023-04-02 03:00:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-02 03:00:14,813 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:14,813 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:14,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 03:00:14,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:14,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1659543558, now seen corresponding path program 1 times [2023-04-02 03:00:14,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:14,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724946312] [2023-04-02 03:00:14,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:14,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:15,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:15,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 03:00:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:15,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:15,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724946312] [2023-04-02 03:00:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724946312] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:15,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:15,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403109833] [2023-04-02 03:00:15,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:15,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:15,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:15,640 INFO L87 Difference]: Start difference. First operand 1547 states and 2484 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:25,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:25,072 INFO L93 Difference]: Finished difference Result 4345 states and 7973 transitions. [2023-04-02 03:00:25,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:25,073 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 128 [2023-04-02 03:00:25,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:25,091 INFO L225 Difference]: With dead ends: 4345 [2023-04-02 03:00:25,091 INFO L226 Difference]: Without dead ends: 2881 [2023-04-02 03:00:25,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:25,100 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 1897 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 7670 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 8459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 7670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:25,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 968 Invalid, 8459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [789 Valid, 7670 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-04-02 03:00:25,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2023-04-02 03:00:25,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1547. [2023-04-02 03:00:25,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1149 states have (on average 1.5970409051349) internal successors, (1835), 1206 states have internal predecessors, (1835), 287 states have call successors, (287), 102 states have call predecessors, (287), 110 states have return successors, (357), 274 states have call predecessors, (357), 279 states have call successors, (357) [2023-04-02 03:00:25,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2479 transitions. [2023-04-02 03:00:25,581 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2479 transitions. Word has length 128 [2023-04-02 03:00:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:25,581 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2479 transitions. [2023-04-02 03:00:25,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 6 states have internal predecessors, (78), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2479 transitions. [2023-04-02 03:00:25,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-02 03:00:25,585 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:25,585 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:25,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 03:00:25,585 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:25,586 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:25,586 INFO L85 PathProgramCache]: Analyzing trace with hash 523114816, now seen corresponding path program 1 times [2023-04-02 03:00:25,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:25,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166247457] [2023-04-02 03:00:25,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:25,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:25,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:25,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:26,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:26,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:26,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 03:00:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 03:00:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:26,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:26,496 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:26,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:26,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166247457] [2023-04-02 03:00:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166247457] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:26,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:26,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:26,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279566223] [2023-04-02 03:00:26,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:26,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:26,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:26,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:26,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:26,498 INFO L87 Difference]: Start difference. First operand 1547 states and 2479 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:35,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:35,763 INFO L93 Difference]: Finished difference Result 4345 states and 7968 transitions. [2023-04-02 03:00:35,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:35,764 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 129 [2023-04-02 03:00:35,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:35,784 INFO L225 Difference]: With dead ends: 4345 [2023-04-02 03:00:35,784 INFO L226 Difference]: Without dead ends: 2881 [2023-04-02 03:00:35,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:35,794 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 2960 mSDsluCounter, 870 mSDsCounter, 0 mSdLazyCounter, 7460 mSolverCounterSat, 1174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3050 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 8634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 7460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:35,794 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3050 Valid, 1004 Invalid, 8634 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1174 Valid, 7460 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2023-04-02 03:00:35,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2023-04-02 03:00:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1547. [2023-04-02 03:00:36,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1149 states have (on average 1.5926892950391645) internal successors, (1830), 1206 states have internal predecessors, (1830), 287 states have call successors, (287), 102 states have call predecessors, (287), 110 states have return successors, (357), 274 states have call predecessors, (357), 279 states have call successors, (357) [2023-04-02 03:00:36,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2474 transitions. [2023-04-02 03:00:36,385 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2474 transitions. Word has length 129 [2023-04-02 03:00:36,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:36,385 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2474 transitions. [2023-04-02 03:00:36,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 6 states have internal predecessors, (79), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:36,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2474 transitions. [2023-04-02 03:00:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-02 03:00:36,389 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:36,389 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:36,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 03:00:36,389 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:36,389 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:36,389 INFO L85 PathProgramCache]: Analyzing trace with hash -2097681717, now seen corresponding path program 1 times [2023-04-02 03:00:36,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:36,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973236598] [2023-04-02 03:00:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:36,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 03:00:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 03:00:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:37,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:37,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:37,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:37,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973236598] [2023-04-02 03:00:37,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973236598] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:37,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:37,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:37,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992697675] [2023-04-02 03:00:37,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:37,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:37,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:37,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:37,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:37,209 INFO L87 Difference]: Start difference. First operand 1547 states and 2474 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:47,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:47,202 INFO L93 Difference]: Finished difference Result 4345 states and 7963 transitions. [2023-04-02 03:00:47,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:47,203 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 130 [2023-04-02 03:00:47,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:47,218 INFO L225 Difference]: With dead ends: 4345 [2023-04-02 03:00:47,218 INFO L226 Difference]: Without dead ends: 2881 [2023-04-02 03:00:47,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:47,224 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 2538 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 7849 mSolverCounterSat, 980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2628 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 8829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 7849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:47,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2628 Valid, 926 Invalid, 8829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [980 Valid, 7849 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-04-02 03:00:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2023-04-02 03:00:47,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1547. [2023-04-02 03:00:47,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1149 states have (on average 1.588337684943429) internal successors, (1825), 1206 states have internal predecessors, (1825), 287 states have call successors, (287), 102 states have call predecessors, (287), 110 states have return successors, (357), 274 states have call predecessors, (357), 279 states have call successors, (357) [2023-04-02 03:00:47,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2469 transitions. [2023-04-02 03:00:47,728 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2469 transitions. Word has length 130 [2023-04-02 03:00:47,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:47,728 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2469 transitions. [2023-04-02 03:00:47,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 6 states have internal predecessors, (80), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:47,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2469 transitions. [2023-04-02 03:00:47,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:00:47,732 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:47,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:47,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 03:00:47,732 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:47,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:47,733 INFO L85 PathProgramCache]: Analyzing trace with hash 805727781, now seen corresponding path program 1 times [2023-04-02 03:00:47,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:47,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371261079] [2023-04-02 03:00:47,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:47,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:48,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:00:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:00:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:00:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:00:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:00:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:00:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:00:48,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:00:48,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:00:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:00:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:00:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:00:48,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:00:48,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:00:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:00:48,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:00:48,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371261079] [2023-04-02 03:00:48,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371261079] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:00:48,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:00:48,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:00:48,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503669215] [2023-04-02 03:00:48,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:00:48,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:00:48,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:00:48,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:00:48,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:00:48,520 INFO L87 Difference]: Start difference. First operand 1547 states and 2469 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:59,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:00:59,243 INFO L93 Difference]: Finished difference Result 4345 states and 7958 transitions. [2023-04-02 03:00:59,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:00:59,244 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 131 [2023-04-02 03:00:59,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:00:59,259 INFO L225 Difference]: With dead ends: 4345 [2023-04-02 03:00:59,260 INFO L226 Difference]: Without dead ends: 2881 [2023-04-02 03:00:59,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:00:59,266 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 1973 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 8078 mSolverCounterSat, 759 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 8837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 759 IncrementalHoareTripleChecker+Valid, 8078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-04-02 03:00:59,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 965 Invalid, 8837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [759 Valid, 8078 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-04-02 03:00:59,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2023-04-02 03:00:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 1547. [2023-04-02 03:00:59,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 1149 states have (on average 1.5839860748476937) internal successors, (1820), 1206 states have internal predecessors, (1820), 287 states have call successors, (287), 102 states have call predecessors, (287), 110 states have return successors, (357), 274 states have call predecessors, (357), 279 states have call successors, (357) [2023-04-02 03:00:59,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 2464 transitions. [2023-04-02 03:00:59,859 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 2464 transitions. Word has length 131 [2023-04-02 03:00:59,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:00:59,859 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 2464 transitions. [2023-04-02 03:00:59,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 6 states have internal predecessors, (81), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:00:59,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 2464 transitions. [2023-04-02 03:00:59,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:00:59,862 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:00:59,862 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:00:59,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 03:00:59,862 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:00:59,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:00:59,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1445117830, now seen corresponding path program 1 times [2023-04-02 03:00:59,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:00:59,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257910005] [2023-04-02 03:00:59,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:00:59,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:00:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:00,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:00,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:00,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:00,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:00,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:00,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:00,501 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:00,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:00,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257910005] [2023-04-02 03:01:00,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257910005] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:00,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:00,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 03:01:00,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568084675] [2023-04-02 03:01:00,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:00,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 03:01:00,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:00,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 03:01:00,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2023-04-02 03:01:00,503 INFO L87 Difference]: Start difference. First operand 1547 states and 2464 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:13,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:13,366 INFO L93 Difference]: Finished difference Result 6264 states and 11798 transitions. [2023-04-02 03:01:13,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 03:01:13,367 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) Word has length 131 [2023-04-02 03:01:13,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:13,396 INFO L225 Difference]: With dead ends: 6264 [2023-04-02 03:01:13,397 INFO L226 Difference]: Without dead ends: 4812 [2023-04-02 03:01:13,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=216, Invalid=540, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:01:13,405 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 4305 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 3254 mSolverCounterSat, 2044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4390 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 5298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2044 IncrementalHoareTripleChecker+Valid, 3254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:13,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4390 Valid, 414 Invalid, 5298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2044 Valid, 3254 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-04-02 03:01:13,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4812 states. [2023-04-02 03:01:14,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4812 to 2598. [2023-04-02 03:01:14,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2598 states, 1945 states have (on average 1.5845758354755783) internal successors, (3082), 2037 states have internal predecessors, (3082), 467 states have call successors, (467), 163 states have call predecessors, (467), 185 states have return successors, (593), 457 states have call predecessors, (593), 459 states have call successors, (593) [2023-04-02 03:01:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2598 states to 2598 states and 4142 transitions. [2023-04-02 03:01:14,297 INFO L78 Accepts]: Start accepts. Automaton has 2598 states and 4142 transitions. Word has length 131 [2023-04-02 03:01:14,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:14,298 INFO L495 AbstractCegarLoop]: Abstraction has 2598 states and 4142 transitions. [2023-04-02 03:01:14,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (25), 8 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:14,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2598 states and 4142 transitions. [2023-04-02 03:01:14,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-04-02 03:01:14,301 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:14,301 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:14,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 03:01:14,301 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:14,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:14,302 INFO L85 PathProgramCache]: Analyzing trace with hash 743517956, now seen corresponding path program 1 times [2023-04-02 03:01:14,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:14,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972264903] [2023-04-02 03:01:14,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:14,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:14,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:14,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:14,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:15,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:15,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:15,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:15,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:15,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972264903] [2023-04-02 03:01:15,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972264903] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:15,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:15,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:01:15,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072589304] [2023-04-02 03:01:15,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:15,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:01:15,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:15,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:01:15,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:01:15,137 INFO L87 Difference]: Start difference. First operand 2598 states and 4142 transitions. Second operand has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:01:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:27,076 INFO L93 Difference]: Finished difference Result 7268 states and 13270 transitions. [2023-04-02 03:01:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:01:27,077 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) Word has length 131 [2023-04-02 03:01:27,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:27,100 INFO L225 Difference]: With dead ends: 7268 [2023-04-02 03:01:27,101 INFO L226 Difference]: Without dead ends: 4756 [2023-04-02 03:01:27,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:01:27,110 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 2399 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 8925 mSolverCounterSat, 972 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 9897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 972 IncrementalHoareTripleChecker+Valid, 8925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:27,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 1239 Invalid, 9897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [972 Valid, 8925 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-04-02 03:01:27,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4756 states. [2023-04-02 03:01:28,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4756 to 2601. [2023-04-02 03:01:28,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 1946 states have (on average 1.5842754367934224) internal successors, (3083), 2040 states have internal predecessors, (3083), 468 states have call successors, (468), 163 states have call predecessors, (468), 186 states have return successors, (595), 457 states have call predecessors, (595), 460 states have call successors, (595) [2023-04-02 03:01:28,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 4146 transitions. [2023-04-02 03:01:28,153 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 4146 transitions. Word has length 131 [2023-04-02 03:01:28,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:28,154 INFO L495 AbstractCegarLoop]: Abstraction has 2601 states and 4146 transitions. [2023-04-02 03:01:28,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.230769230769231) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 3 states have call predecessors, (21), 5 states have call successors, (21) [2023-04-02 03:01:28,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 4146 transitions. [2023-04-02 03:01:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:01:28,158 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:28,158 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:28,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 03:01:28,158 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:28,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:28,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1835734770, now seen corresponding path program 1 times [2023-04-02 03:01:28,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:28,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342773572] [2023-04-02 03:01:28,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:28,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:28,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:28,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:28,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 03:01:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:28,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:28,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:29,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:29,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:29,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:29,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:29,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342773572] [2023-04-02 03:01:29,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342773572] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:29,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:29,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 03:01:29,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001903864] [2023-04-02 03:01:29,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:29,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 03:01:29,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:29,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 03:01:29,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 03:01:29,011 INFO L87 Difference]: Start difference. First operand 2601 states and 4146 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:39,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:39,958 INFO L93 Difference]: Finished difference Result 7256 states and 13254 transitions. [2023-04-02 03:01:39,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 03:01:39,959 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) Word has length 132 [2023-04-02 03:01:39,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:39,985 INFO L225 Difference]: With dead ends: 7256 [2023-04-02 03:01:39,985 INFO L226 Difference]: Without dead ends: 4740 [2023-04-02 03:01:39,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=196, Invalid=560, Unknown=0, NotChecked=0, Total=756 [2023-04-02 03:01:39,997 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 2372 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 7573 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 917 SdHoareTripleChecker+Invalid, 8544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 7573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:39,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 917 Invalid, 8544 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [971 Valid, 7573 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-04-02 03:01:40,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2023-04-02 03:01:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 2601. [2023-04-02 03:01:41,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2601 states, 1946 states have (on average 1.5817060637204523) internal successors, (3078), 2040 states have internal predecessors, (3078), 468 states have call successors, (468), 163 states have call predecessors, (468), 186 states have return successors, (595), 457 states have call predecessors, (595), 460 states have call successors, (595) [2023-04-02 03:01:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2601 states to 2601 states and 4141 transitions. [2023-04-02 03:01:41,159 INFO L78 Accepts]: Start accepts. Automaton has 2601 states and 4141 transitions. Word has length 132 [2023-04-02 03:01:41,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:41,160 INFO L495 AbstractCegarLoop]: Abstraction has 2601 states and 4141 transitions. [2023-04-02 03:01:41,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 6 states have internal predecessors, (82), 4 states have call successors, (25), 8 states have call predecessors, (25), 4 states have return successors, (21), 4 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 03:01:41,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2601 states and 4141 transitions. [2023-04-02 03:01:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-04-02 03:01:41,163 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:41,163 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:41,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 03:01:41,163 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:41,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:41,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2126413603, now seen corresponding path program 1 times [2023-04-02 03:01:41,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:41,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760168329] [2023-04-02 03:01:41,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:41,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:41,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:41,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:41,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 03:01:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 03:01:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 03:01:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-04-02 03:01:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:41,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:41,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:41,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760168329] [2023-04-02 03:01:41,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760168329] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:41,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:41,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 03:01:41,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854270292] [2023-04-02 03:01:41,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:41,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 03:01:41,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:41,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 03:01:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-04-02 03:01:41,878 INFO L87 Difference]: Start difference. First operand 2601 states and 4141 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:01:53,998 INFO L93 Difference]: Finished difference Result 7539 states and 14225 transitions. [2023-04-02 03:01:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 03:01:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 132 [2023-04-02 03:01:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:01:54,032 INFO L225 Difference]: With dead ends: 7539 [2023-04-02 03:01:54,032 INFO L226 Difference]: Without dead ends: 5035 [2023-04-02 03:01:54,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2023-04-02 03:01:54,044 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1855 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 6183 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1945 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 6954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 6183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-04-02 03:01:54,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1945 Valid, 785 Invalid, 6954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 6183 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-04-02 03:01:54,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2023-04-02 03:01:55,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 2621. [2023-04-02 03:01:55,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2621 states, 1961 states have (on average 1.5772565017848037) internal successors, (3093), 2055 states have internal predecessors, (3093), 468 states have call successors, (468), 163 states have call predecessors, (468), 191 states have return successors, (603), 462 states have call predecessors, (603), 460 states have call successors, (603) [2023-04-02 03:01:55,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2621 states to 2621 states and 4164 transitions. [2023-04-02 03:01:55,128 INFO L78 Accepts]: Start accepts. Automaton has 2621 states and 4164 transitions. Word has length 132 [2023-04-02 03:01:55,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:01:55,128 INFO L495 AbstractCegarLoop]: Abstraction has 2621 states and 4164 transitions. [2023-04-02 03:01:55,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (25), 8 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 03:01:55,128 INFO L276 IsEmpty]: Start isEmpty. Operand 2621 states and 4164 transitions. [2023-04-02 03:01:55,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 03:01:55,131 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:01:55,131 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:01:55,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 03:01:55,131 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:01:55,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:01:55,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1653967050, now seen corresponding path program 1 times [2023-04-02 03:01:55,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:01:55,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433132230] [2023-04-02 03:01:55,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:01:55,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:01:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:01:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:01:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:01:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:01:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:55,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:01:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:01:55,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:55,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:55,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:01:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:01:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:01:55,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:01:55,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:01:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:01:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:01:55,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:01:55,922 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:01:55,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:01:55,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433132230] [2023-04-02 03:01:55,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433132230] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:01:55,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:01:55,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 03:01:55,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250678987] [2023-04-02 03:01:55,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:01:55,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 03:01:55,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:01:55,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 03:01:55,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 03:01:55,924 INFO L87 Difference]: Start difference. First operand 2621 states and 4164 transitions. Second operand has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 03:02:08,236 INFO L93 Difference]: Finished difference Result 7312 states and 13322 transitions. [2023-04-02 03:02:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-02 03:02:08,236 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) Word has length 139 [2023-04-02 03:02:08,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 03:02:08,261 INFO L225 Difference]: With dead ends: 7312 [2023-04-02 03:02:08,262 INFO L226 Difference]: Without dead ends: 4780 [2023-04-02 03:02:08,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=226, Invalid=766, Unknown=0, NotChecked=0, Total=992 [2023-04-02 03:02:08,272 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 2469 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 8763 mSolverCounterSat, 986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2561 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 9749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 8763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 03:02:08,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2561 Valid, 1111 Invalid, 9749 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [986 Valid, 8763 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 03:02:08,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4780 states. [2023-04-02 03:02:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4780 to 2624. [2023-04-02 03:02:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 1962 states have (on average 1.5769622833843018) internal successors, (3094), 2058 states have internal predecessors, (3094), 469 states have call successors, (469), 163 states have call predecessors, (469), 192 states have return successors, (605), 462 states have call predecessors, (605), 461 states have call successors, (605) [2023-04-02 03:02:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 4168 transitions. [2023-04-02 03:02:09,331 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 4168 transitions. Word has length 139 [2023-04-02 03:02:09,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 03:02:09,331 INFO L495 AbstractCegarLoop]: Abstraction has 2624 states and 4168 transitions. [2023-04-02 03:02:09,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 7 states have internal predecessors, (87), 5 states have call successors, (26), 8 states have call predecessors, (26), 4 states have return successors, (22), 3 states have call predecessors, (22), 5 states have call successors, (22) [2023-04-02 03:02:09,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 4168 transitions. [2023-04-02 03:02:09,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 03:02:09,333 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 03:02:09,334 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 03:02:09,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 03:02:09,334 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 03:02:09,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 03:02:09,334 INFO L85 PathProgramCache]: Analyzing trace with hash 733410495, now seen corresponding path program 1 times [2023-04-02 03:02:09,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 03:02:09,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759655650] [2023-04-02 03:02:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 03:02:09,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 03:02:09,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:09,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 03:02:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 03:02:09,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:09,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 03:02:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:09,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-04-02 03:02:09,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 03:02:10,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:10,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 03:02:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-04-02 03:02:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:10,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:10,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 03:02:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-04-02 03:02:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 03:02:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 03:02:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 03:02:10,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 03:02:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 03:02:10,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 03:02:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-04-02 03:02:10,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 03:02:10,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759655650] [2023-04-02 03:02:10,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759655650] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 03:02:10,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 03:02:10,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2023-04-02 03:02:10,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701454563] [2023-04-02 03:02:10,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 03:02:10,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-02 03:02:10,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 03:02:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-02 03:02:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2023-04-02 03:02:10,478 INFO L87 Difference]: Start difference. First operand 2624 states and 4168 transitions. Second operand has 19 states, 17 states have (on average 5.176470588235294) internal successors, (88), 10 states have internal predecessors, (88), 7 states have call successors, (26), 8 states have call predecessors, (26), 7 states have return successors, (22), 8 states have call predecessors, (22), 6 states have call successors, (22)