/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_spec14_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:51:10,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:51:10,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:51:10,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:51:10,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:51:10,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:51:10,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:51:10,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:51:10,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:51:10,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:51:10,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:51:10,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:51:10,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:51:10,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:51:10,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:51:10,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:51:10,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:51:10,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:51:10,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:51:10,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:51:10,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:51:10,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:51:10,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:51:10,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:51:10,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:51:10,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:51:10,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:51:10,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:51:10,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:51:10,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:51:10,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:51:10,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:51:10,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:51:10,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:51:10,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:51:10,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:51:10,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:51:10,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:51:10,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:51:10,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:51:10,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:51:10,743 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 02:51:10,778 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:51:10,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:51:10,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:51:10,779 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:51:10,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:51:10,781 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:51:10,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:51:10,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:51:10,782 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:51:10,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:51:10,782 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:51:10,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:51:10,784 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:51:10,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:51:10,784 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:51:10,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:51:10,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:51:10,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:51:10,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:51:10,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:10,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:51:10,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:51:10,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:51:10,786 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:51:10,787 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:51:11,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:51:11,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:51:11,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:51:11,047 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:51:11,047 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:51:11,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2023-04-02 02:51:12,207 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:51:12,542 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:51:12,542 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2023-04-02 02:51:12,572 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09cd571d/b24e4833258b4479b9d1a65098cab91f/FLAGdb84a8c0a [2023-04-02 02:51:12,588 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a09cd571d/b24e4833258b4479b9d1a65098cab91f [2023-04-02 02:51:12,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:51:12,592 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:51:12,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:12,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:51:12,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:51:12,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:12" (1/1) ... [2023-04-02 02:51:12,599 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306f3565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:12, skipping insertion in model container [2023-04-02 02:51:12,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:12" (1/1) ... [2023-04-02 02:51:12,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:51:12,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:51:12,840 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_spec14_product23.cil.c[8585,8598] [2023-04-02 02:51:13,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:13,113 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:51:13,135 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c[8585,8598] [2023-04-02 02:51:13,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:13,219 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:51:13,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13 WrapperNode [2023-04-02 02:51:13,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:13,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:51:13,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:51:13,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:51:13,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,272 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:51:13,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:51:13,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:51:13,381 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:51:13,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (1/1) ... [2023-04-02 02:51:13,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:13,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:13,410 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 02:51:13,423 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 02:51:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:51:13,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:51:13,461 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:51:13,462 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:51:13,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:51:13,464 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:51:13,465 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:51:13,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:51:13,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:51:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:51:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:51:13,468 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:51:13,468 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:51:13,469 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:51:13,470 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:51:13,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:51:13,472 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:51:13,473 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2023-04-02 02:51:13,474 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:51:13,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:51:13,748 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:51:13,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:51:14,993 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:51:15,019 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:51:15,020 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:51:15,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:15 BoogieIcfgContainer [2023-04-02 02:51:15,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:51:15,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:51:15,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:51:15,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:51:15,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:51:12" (1/3) ... [2023-04-02 02:51:15,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea52114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:15, skipping insertion in model container [2023-04-02 02:51:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:13" (2/3) ... [2023-04-02 02:51:15,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea52114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:15, skipping insertion in model container [2023-04-02 02:51:15,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:15" (3/3) ... [2023-04-02 02:51:15,033 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product23.cil.c [2023-04-02 02:51:15,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:51:15,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:51:15,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:51:15,131 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;@22cf70c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:51:15,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:51:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand has 766 states, 528 states have (on average 1.6117424242424243) internal successors, (851), 551 states have internal predecessors, (851), 174 states have call successors, (174), 52 states have call predecessors, (174), 52 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) [2023-04-02 02:51:15,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-02 02:51:15,173 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:15,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:15,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:15,180 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:15,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1842644347, now seen corresponding path program 1 times [2023-04-02 02:51:15,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:15,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69664121] [2023-04-02 02:51:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:15,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:16,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:16,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:51:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:51:16,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:51:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:51:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:51:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:51:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:51:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:16,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:16,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69664121] [2023-04-02 02:51:16,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69664121] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:16,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:16,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021778280] [2023-04-02 02:51:16,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:16,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:16,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:16,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:16,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:16,369 INFO L87 Difference]: Start difference. First operand has 766 states, 528 states have (on average 1.6117424242424243) internal successors, (851), 551 states have internal predecessors, (851), 174 states have call successors, (174), 52 states have call predecessors, (174), 52 states have return successors, (174), 169 states have call predecessors, (174), 174 states have call successors, (174) Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:23,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:23,975 INFO L93 Difference]: Finished difference Result 1562 states and 2666 transitions. [2023-04-02 02:51:23,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 02:51:23,978 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2023-04-02 02:51:23,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:24,002 INFO L225 Difference]: With dead ends: 1562 [2023-04-02 02:51:24,003 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 02:51:24,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:51:24,015 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 2235 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 3955 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2342 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 4735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 3955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:24,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2342 Valid, 513 Invalid, 4735 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [780 Valid, 3955 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 02:51:24,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 02:51:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 618. [2023-04-02 02:51:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 449 states have (on average 1.6258351893095768) internal successors, (730), 464 states have internal predecessors, (730), 123 states have call successors, (123), 50 states have call predecessors, (123), 45 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-02 02:51:24,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 971 transitions. [2023-04-02 02:51:24,278 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 971 transitions. Word has length 135 [2023-04-02 02:51:24,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:24,278 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 971 transitions. [2023-04-02 02:51:24,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:24,279 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 971 transitions. [2023-04-02 02:51:24,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 02:51:24,284 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:24,285 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:24,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 02:51:24,285 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:24,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:24,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1442553877, now seen corresponding path program 1 times [2023-04-02 02:51:24,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:24,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824120767] [2023-04-02 02:51:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:24,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:24,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:24,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:51:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:51:24,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:51:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:51:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 02:51:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:51:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:51:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:24,836 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:24,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:24,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824120767] [2023-04-02 02:51:24,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824120767] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:24,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:24,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:24,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065424533] [2023-04-02 02:51:24,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:24,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:24,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:24,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:24,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:24,842 INFO L87 Difference]: Start difference. First operand 618 states and 971 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:31,386 INFO L93 Difference]: Finished difference Result 1487 states and 2478 transitions. [2023-04-02 02:51:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:31,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2023-04-02 02:51:31,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:31,399 INFO L225 Difference]: With dead ends: 1487 [2023-04-02 02:51:31,400 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 02:51:31,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:31,409 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 2188 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 3888 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 4640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 3888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:31,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 425 Invalid, 4640 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [752 Valid, 3888 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:51:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 02:51:31,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 618. [2023-04-02 02:51:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 449 states have (on average 1.623608017817372) internal successors, (729), 464 states have internal predecessors, (729), 123 states have call successors, (123), 50 states have call predecessors, (123), 45 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-02 02:51:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 970 transitions. [2023-04-02 02:51:31,632 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 970 transitions. Word has length 136 [2023-04-02 02:51:31,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:31,633 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 970 transitions. [2023-04-02 02:51:31,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:31,633 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 970 transitions. [2023-04-02 02:51:31,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-02 02:51:31,637 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:31,637 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:31,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 02:51:31,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:31,638 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:31,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1576014655, now seen corresponding path program 1 times [2023-04-02 02:51:31,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:31,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635090272] [2023-04-02 02:51:31,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:31,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:31,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:31,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:51:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:51:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:51:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:51:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:51:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 02:51:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:51:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635090272] [2023-04-02 02:51:32,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635090272] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:32,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:32,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:32,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049148081] [2023-04-02 02:51:32,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:32,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:32,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:32,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:32,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:32,146 INFO L87 Difference]: Start difference. First operand 618 states and 970 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:38,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:38,104 INFO L93 Difference]: Finished difference Result 1487 states and 2477 transitions. [2023-04-02 02:51:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:38,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2023-04-02 02:51:38,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:38,112 INFO L225 Difference]: With dead ends: 1487 [2023-04-02 02:51:38,112 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 02:51:38,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:38,117 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2189 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 3876 mSolverCounterSat, 763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2295 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 4639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 763 IncrementalHoareTripleChecker+Valid, 3876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:38,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2295 Valid, 391 Invalid, 4639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [763 Valid, 3876 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-02 02:51:38,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 02:51:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 618. [2023-04-02 02:51:38,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 449 states have (on average 1.621380846325167) internal successors, (728), 464 states have internal predecessors, (728), 123 states have call successors, (123), 50 states have call predecessors, (123), 45 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-02 02:51:38,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 969 transitions. [2023-04-02 02:51:38,362 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 969 transitions. Word has length 137 [2023-04-02 02:51:38,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:38,363 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 969 transitions. [2023-04-02 02:51:38,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:38,363 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 969 transitions. [2023-04-02 02:51:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 02:51:38,369 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:38,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:38,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 02:51:38,370 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:38,371 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:38,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1069694937, now seen corresponding path program 1 times [2023-04-02 02:51:38,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:38,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922135472] [2023-04-02 02:51:38,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:38,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:38,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:38,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:51:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:51:39,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:39,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:51:39,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:39,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:51:39,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:51:39,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 02:51:39,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:51:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:51:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:39,061 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:39,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:39,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922135472] [2023-04-02 02:51:39,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922135472] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:39,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:39,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:39,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142376321] [2023-04-02 02:51:39,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:39,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:39,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:39,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:39,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:39,065 INFO L87 Difference]: Start difference. First operand 618 states and 969 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:45,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:45,674 INFO L93 Difference]: Finished difference Result 1487 states and 2476 transitions. [2023-04-02 02:51:45,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:45,675 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2023-04-02 02:51:45,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:45,681 INFO L225 Difference]: With dead ends: 1487 [2023-04-02 02:51:45,681 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 02:51:45,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:45,685 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1608 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 4103 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1713 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 4616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 4103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:45,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1713 Valid, 419 Invalid, 4616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 4103 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 02:51:45,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 02:51:45,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 618. [2023-04-02 02:51:45,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 449 states have (on average 1.6191536748329622) internal successors, (727), 464 states have internal predecessors, (727), 123 states have call successors, (123), 50 states have call predecessors, (123), 45 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-02 02:51:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 968 transitions. [2023-04-02 02:51:45,845 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 968 transitions. Word has length 138 [2023-04-02 02:51:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:45,845 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 968 transitions. [2023-04-02 02:51:45,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:45,846 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 968 transitions. [2023-04-02 02:51:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 02:51:45,849 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:45,849 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:45,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 02:51:45,850 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:45,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:45,850 INFO L85 PathProgramCache]: Analyzing trace with hash 2089950973, now seen corresponding path program 1 times [2023-04-02 02:51:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:45,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290900669] [2023-04-02 02:51:45,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:45,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:46,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:46,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 02:51:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:46,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:51:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:51:46,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:46,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:51:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 02:51:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:51:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:51:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:51:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:46,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:46,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290900669] [2023-04-02 02:51:46,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290900669] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:46,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:46,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:46,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47567517] [2023-04-02 02:51:46,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:46,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:46,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:46,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:46,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:46,394 INFO L87 Difference]: Start difference. First operand 618 states and 968 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:52,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:52,493 INFO L93 Difference]: Finished difference Result 1487 states and 2475 transitions. [2023-04-02 02:51:52,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:52,494 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-04-02 02:51:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:52,501 INFO L225 Difference]: With dead ends: 1487 [2023-04-02 02:51:52,502 INFO L226 Difference]: Without dead ends: 902 [2023-04-02 02:51:52,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:52,505 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 1605 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 3901 mSolverCounterSat, 584 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 4485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 584 IncrementalHoareTripleChecker+Valid, 3901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:52,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 350 Invalid, 4485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [584 Valid, 3901 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 02:51:52,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2023-04-02 02:51:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 618. [2023-04-02 02:51:52,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 449 states have (on average 1.6169265033407572) internal successors, (726), 464 states have internal predecessors, (726), 123 states have call successors, (123), 50 states have call predecessors, (123), 45 states have return successors, (118), 115 states have call predecessors, (118), 118 states have call successors, (118) [2023-04-02 02:51:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 967 transitions. [2023-04-02 02:51:52,692 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 967 transitions. Word has length 139 [2023-04-02 02:51:52,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:52,693 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 967 transitions. [2023-04-02 02:51:52,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 967 transitions. [2023-04-02 02:51:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 02:51:52,697 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:52,697 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:51:52,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 02:51:52,698 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:52,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:52,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1603362915, now seen corresponding path program 1 times [2023-04-02 02:51:52,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:52,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248996335] [2023-04-02 02:51:52,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:52,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:52,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:53,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:53,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:53,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:51:53,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:51:53,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:51:53,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:51:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:51:53,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:51:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:53,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:53,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248996335] [2023-04-02 02:51:53,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248996335] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:53,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:53,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:51:53,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132608930] [2023-04-02 02:51:53,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:53,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:51:53,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:53,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:51:53,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:51:53,362 INFO L87 Difference]: Start difference. First operand 618 states and 967 transitions. Second operand has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:01,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:01,236 INFO L93 Difference]: Finished difference Result 1502 states and 2508 transitions. [2023-04-02 02:52:01,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 02:52:01,245 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 140 [2023-04-02 02:52:01,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:01,252 INFO L225 Difference]: With dead ends: 1502 [2023-04-02 02:52:01,252 INFO L226 Difference]: Without dead ends: 921 [2023-04-02 02:52:01,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:52:01,257 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 1105 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 7382 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 7736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 7382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:01,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 752 Invalid, 7736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [354 Valid, 7382 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 02:52:01,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-04-02 02:52:01,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 632. [2023-04-02 02:52:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 461 states have (on average 1.6117136659436009) internal successors, (743), 476 states have internal predecessors, (743), 124 states have call successors, (124), 51 states have call predecessors, (124), 46 states have return successors, (119), 116 states have call predecessors, (119), 119 states have call successors, (119) [2023-04-02 02:52:01,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 986 transitions. [2023-04-02 02:52:01,439 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 986 transitions. Word has length 140 [2023-04-02 02:52:01,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:01,439 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 986 transitions. [2023-04-02 02:52:01,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.454545454545454) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:01,440 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 986 transitions. [2023-04-02 02:52:01,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-02 02:52:01,443 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:01,444 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:01,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 02:52:01,444 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:01,444 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:01,444 INFO L85 PathProgramCache]: Analyzing trace with hash 440525264, now seen corresponding path program 1 times [2023-04-02 02:52:01,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:01,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194288648] [2023-04-02 02:52:01,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:01,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:01,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:01,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:01,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:01,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:02,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:52:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:52:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:52:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 02:52:02,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 02:52:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:52:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:52:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:52:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:02,151 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:02,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:02,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194288648] [2023-04-02 02:52:02,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194288648] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:02,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:02,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:02,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680224790] [2023-04-02 02:52:02,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:02,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:02,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:02,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:02,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:02,153 INFO L87 Difference]: Start difference. First operand 632 states and 986 transitions. Second operand has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:09,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:09,280 INFO L93 Difference]: Finished difference Result 1482 states and 2446 transitions. [2023-04-02 02:52:09,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:09,281 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 141 [2023-04-02 02:52:09,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:09,287 INFO L225 Difference]: With dead ends: 1482 [2023-04-02 02:52:09,287 INFO L226 Difference]: Without dead ends: 921 [2023-04-02 02:52:09,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:52:09,290 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 1653 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 7216 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1759 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 7784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 7216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:09,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1759 Valid, 701 Invalid, 7784 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [568 Valid, 7216 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-02 02:52:09,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-04-02 02:52:09,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 632. [2023-04-02 02:52:09,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 461 states have (on average 1.6008676789587852) internal successors, (738), 476 states have internal predecessors, (738), 124 states have call successors, (124), 51 states have call predecessors, (124), 46 states have return successors, (119), 116 states have call predecessors, (119), 119 states have call successors, (119) [2023-04-02 02:52:09,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 981 transitions. [2023-04-02 02:52:09,458 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 981 transitions. Word has length 141 [2023-04-02 02:52:09,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:09,459 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 981 transitions. [2023-04-02 02:52:09,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:09,459 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 981 transitions. [2023-04-02 02:52:09,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-02 02:52:09,463 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:09,463 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:09,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 02:52:09,463 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:09,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:09,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1926891400, now seen corresponding path program 1 times [2023-04-02 02:52:09,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:09,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392167669] [2023-04-02 02:52:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:09,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:09,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:09,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:52:09,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:52:09,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:09,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:09,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:52:09,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 02:52:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:52:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 02:52:10,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:52:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 02:52:10,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:10,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:10,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392167669] [2023-04-02 02:52:10,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392167669] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:10,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:10,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:10,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252831060] [2023-04-02 02:52:10,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:10,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:10,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:10,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:10,031 INFO L87 Difference]: Start difference. First operand 632 states and 981 transitions. Second operand has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:17,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:17,415 INFO L93 Difference]: Finished difference Result 1482 states and 2441 transitions. [2023-04-02 02:52:17,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:17,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 142 [2023-04-02 02:52:17,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:17,422 INFO L225 Difference]: With dead ends: 1482 [2023-04-02 02:52:17,422 INFO L226 Difference]: Without dead ends: 921 [2023-04-02 02:52:17,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:52:17,425 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 1076 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 7295 mSolverCounterSat, 347 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 7642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 347 IncrementalHoareTripleChecker+Valid, 7295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:17,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 787 Invalid, 7642 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [347 Valid, 7295 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 02:52:17,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-04-02 02:52:17,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 632. [2023-04-02 02:52:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 461 states have (on average 1.5900216919739696) internal successors, (733), 476 states have internal predecessors, (733), 124 states have call successors, (124), 51 states have call predecessors, (124), 46 states have return successors, (119), 116 states have call predecessors, (119), 119 states have call successors, (119) [2023-04-02 02:52:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 976 transitions. [2023-04-02 02:52:17,628 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 976 transitions. Word has length 142 [2023-04-02 02:52:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:17,628 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 976 transitions. [2023-04-02 02:52:17,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.636363636363637) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 976 transitions. [2023-04-02 02:52:17,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 02:52:17,632 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:17,632 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:17,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 02:52:17,632 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:17,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:17,633 INFO L85 PathProgramCache]: Analyzing trace with hash -360770987, now seen corresponding path program 1 times [2023-04-02 02:52:17,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:17,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284015039] [2023-04-02 02:52:17,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:17,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:18,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 02:52:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 02:52:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:52:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:52:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:52:18,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:18,215 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:18,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:18,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284015039] [2023-04-02 02:52:18,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284015039] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:18,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:18,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:18,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892726641] [2023-04-02 02:52:18,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:18,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:18,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:18,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:18,217 INFO L87 Difference]: Start difference. First operand 632 states and 976 transitions. Second operand has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:25,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:25,002 INFO L93 Difference]: Finished difference Result 1482 states and 2436 transitions. [2023-04-02 02:52:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:25,005 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 143 [2023-04-02 02:52:25,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:25,010 INFO L225 Difference]: With dead ends: 1482 [2023-04-02 02:52:25,011 INFO L226 Difference]: Without dead ends: 921 [2023-04-02 02:52:25,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:52:25,013 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 1640 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 6995 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 7599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 6995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:25,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1749 Valid, 624 Invalid, 7599 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [604 Valid, 6995 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:52:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-04-02 02:52:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 632. [2023-04-02 02:52:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 461 states have (on average 1.579175704989154) internal successors, (728), 476 states have internal predecessors, (728), 124 states have call successors, (124), 51 states have call predecessors, (124), 46 states have return successors, (119), 116 states have call predecessors, (119), 119 states have call successors, (119) [2023-04-02 02:52:25,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 971 transitions. [2023-04-02 02:52:25,231 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 971 transitions. Word has length 143 [2023-04-02 02:52:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:25,232 INFO L495 AbstractCegarLoop]: Abstraction has 632 states and 971 transitions. [2023-04-02 02:52:25,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 971 transitions. [2023-04-02 02:52:25,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 02:52:25,235 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:25,235 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:25,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 02:52:25,236 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:25,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:25,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1472822858, now seen corresponding path program 1 times [2023-04-02 02:52:25,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:25,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991103133] [2023-04-02 02:52:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:25,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:25,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:25,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:25,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:25,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:25,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:25,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 02:52:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 02:52:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:52:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:52:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:52:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:25,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991103133] [2023-04-02 02:52:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991103133] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:52:25,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965945020] [2023-04-02 02:52:25,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:25,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:52:25,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:25,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:52:25,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:52:25,760 INFO L87 Difference]: Start difference. First operand 632 states and 971 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:33,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:33,050 INFO L93 Difference]: Finished difference Result 1504 states and 2477 transitions. [2023-04-02 02:52:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:52:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 143 [2023-04-02 02:52:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:33,056 INFO L225 Difference]: With dead ends: 1504 [2023-04-02 02:52:33,056 INFO L226 Difference]: Without dead ends: 946 [2023-04-02 02:52:33,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:52:33,059 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 2192 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 8230 mSolverCounterSat, 768 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 8998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 768 IncrementalHoareTripleChecker+Valid, 8230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:33,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 903 Invalid, 8998 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [768 Valid, 8230 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 02:52:33,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 946 states. [2023-04-02 02:52:33,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 946 to 636. [2023-04-02 02:52:33,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 462 states have (on average 1.577922077922078) internal successors, (729), 480 states have internal predecessors, (729), 126 states have call successors, (126), 51 states have call predecessors, (126), 47 states have return successors, (123), 116 states have call predecessors, (123), 121 states have call successors, (123) [2023-04-02 02:52:33,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 978 transitions. [2023-04-02 02:52:33,257 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 978 transitions. Word has length 143 [2023-04-02 02:52:33,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:33,258 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 978 transitions. [2023-04-02 02:52:33,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:33,258 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 978 transitions. [2023-04-02 02:52:33,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 02:52:33,261 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:33,261 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:33,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 02:52:33,262 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:33,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 615766701, now seen corresponding path program 1 times [2023-04-02 02:52:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113261796] [2023-04-02 02:52:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:33,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:52:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:52:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:52:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:52:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:52:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:52:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,827 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:33,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:33,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113261796] [2023-04-02 02:52:33,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113261796] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:33,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:33,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:52:33,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724678656] [2023-04-02 02:52:33,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:33,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:52:33,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:52:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:52:33,830 INFO L87 Difference]: Start difference. First operand 636 states and 978 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:40,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:40,614 INFO L93 Difference]: Finished difference Result 1491 states and 2452 transitions. [2023-04-02 02:52:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:52:40,614 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) Word has length 144 [2023-04-02 02:52:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:40,619 INFO L225 Difference]: With dead ends: 1491 [2023-04-02 02:52:40,619 INFO L226 Difference]: Without dead ends: 926 [2023-04-02 02:52:40,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:52:40,622 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 1692 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 7009 mSolverCounterSat, 616 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 7625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 7009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:40,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 653 Invalid, 7625 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 7009 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 02:52:40,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2023-04-02 02:52:40,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 636. [2023-04-02 02:52:40,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 462 states have (on average 1.567099567099567) internal successors, (724), 480 states have internal predecessors, (724), 126 states have call successors, (126), 51 states have call predecessors, (126), 47 states have return successors, (123), 116 states have call predecessors, (123), 121 states have call successors, (123) [2023-04-02 02:52:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 973 transitions. [2023-04-02 02:52:40,835 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 973 transitions. Word has length 144 [2023-04-02 02:52:40,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:40,835 INFO L495 AbstractCegarLoop]: Abstraction has 636 states and 973 transitions. [2023-04-02 02:52:40,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 4 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 973 transitions. [2023-04-02 02:52:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 02:52:40,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:40,839 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:40,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 02:52:40,839 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:40,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash 944637156, now seen corresponding path program 1 times [2023-04-02 02:52:40,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:40,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571259924] [2023-04-02 02:52:40,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:40,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:41,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:41,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:41,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:41,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:52:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:41,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:52:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:52:41,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:52:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:52:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:52:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:41,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:41,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571259924] [2023-04-02 02:52:41,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571259924] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:41,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:41,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:52:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938074463] [2023-04-02 02:52:41,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:41,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:52:41,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:41,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:52:41,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:52:41,387 INFO L87 Difference]: Start difference. First operand 636 states and 973 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:48,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:48,962 INFO L93 Difference]: Finished difference Result 1512 states and 2492 transitions. [2023-04-02 02:52:48,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:52:48,963 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 144 [2023-04-02 02:52:48,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:48,969 INFO L225 Difference]: With dead ends: 1512 [2023-04-02 02:52:48,969 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 02:52:48,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:52:48,972 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 2199 mSDsluCounter, 650 mSDsCounter, 0 mSdLazyCounter, 8128 mSolverCounterSat, 802 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2305 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 8930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 802 IncrementalHoareTripleChecker+Valid, 8128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:48,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2305 Valid, 754 Invalid, 8930 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [802 Valid, 8128 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 02:52:48,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 02:52:49,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 640. [2023-04-02 02:52:49,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 463 states have (on average 1.5658747300215983) internal successors, (725), 484 states have internal predecessors, (725), 128 states have call successors, (128), 51 states have call predecessors, (128), 48 states have return successors, (127), 116 states have call predecessors, (127), 123 states have call successors, (127) [2023-04-02 02:52:49,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 980 transitions. [2023-04-02 02:52:49,201 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 980 transitions. Word has length 144 [2023-04-02 02:52:49,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:49,201 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 980 transitions. [2023-04-02 02:52:49,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:49,201 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 980 transitions. [2023-04-02 02:52:49,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 02:52:49,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:49,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:49,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 02:52:49,205 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:49,205 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:49,206 INFO L85 PathProgramCache]: Analyzing trace with hash -296708390, now seen corresponding path program 1 times [2023-04-02 02:52:49,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:49,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466191598] [2023-04-02 02:52:49,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:49,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:49,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:49,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:49,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:49,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:49,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:52:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:52:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:52:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:52:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:52:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:52:49,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:49,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:49,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466191598] [2023-04-02 02:52:49,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466191598] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:49,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:49,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:52:49,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717539176] [2023-04-02 02:52:49,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:49,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:52:49,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:49,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:52:49,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:52:49,814 INFO L87 Difference]: Start difference. First operand 640 states and 980 transitions. Second operand has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:58,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:58,240 INFO L93 Difference]: Finished difference Result 1513 states and 2479 transitions. [2023-04-02 02:52:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 02:52:58,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 145 [2023-04-02 02:52:58,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:58,246 INFO L225 Difference]: With dead ends: 1513 [2023-04-02 02:52:58,246 INFO L226 Difference]: Without dead ends: 951 [2023-04-02 02:52:58,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2023-04-02 02:52:58,249 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 2840 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 10092 mSolverCounterSat, 1040 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2947 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 11132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1040 IncrementalHoareTripleChecker+Valid, 10092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:58,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2947 Valid, 1068 Invalid, 11132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1040 Valid, 10092 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-04-02 02:52:58,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2023-04-02 02:52:58,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 646. [2023-04-02 02:52:58,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 466 states have (on average 1.5622317596566524) internal successors, (728), 488 states have internal predecessors, (728), 129 states have call successors, (129), 51 states have call predecessors, (129), 50 states have return successors, (130), 118 states have call predecessors, (130), 124 states have call successors, (130) [2023-04-02 02:52:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 987 transitions. [2023-04-02 02:52:58,456 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 987 transitions. Word has length 145 [2023-04-02 02:52:58,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:58,456 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 987 transitions. [2023-04-02 02:52:58,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.846153846153846) internal successors, (76), 8 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 987 transitions. [2023-04-02 02:52:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 02:52:58,460 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:58,460 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:52:58,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 02:52:58,461 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:58,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1580619557, now seen corresponding path program 1 times [2023-04-02 02:52:58,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:58,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414564380] [2023-04-02 02:52:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:58,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:58,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:52:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:52:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:52:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:52:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:52:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:52:58,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:58,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414564380] [2023-04-02 02:52:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414564380] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:58,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:58,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007598248] [2023-04-02 02:52:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:58,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:58,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:58,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:58,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:58,881 INFO L87 Difference]: Start difference. First operand 646 states and 987 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:53:05,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:05,395 INFO L93 Difference]: Finished difference Result 1546 states and 2523 transitions. [2023-04-02 02:53:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 02:53:05,396 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 145 [2023-04-02 02:53:05,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:05,401 INFO L225 Difference]: With dead ends: 1546 [2023-04-02 02:53:05,401 INFO L226 Difference]: Without dead ends: 923 [2023-04-02 02:53:05,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:05,405 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 991 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 4102 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 4435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 4102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:05,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 403 Invalid, 4435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 4102 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 02:53:05,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-04-02 02:53:05,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 633. [2023-04-02 02:53:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 457 states have (on average 1.5645514223194747) internal successors, (715), 477 states have internal predecessors, (715), 127 states have call successors, (127), 51 states have call predecessors, (127), 48 states have return successors, (125), 116 states have call predecessors, (125), 122 states have call successors, (125) [2023-04-02 02:53:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 967 transitions. [2023-04-02 02:53:05,627 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 967 transitions. Word has length 145 [2023-04-02 02:53:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:05,627 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 967 transitions. [2023-04-02 02:53:05,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:53:05,628 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 967 transitions. [2023-04-02 02:53:05,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 02:53:05,631 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:05,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:05,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 02:53:05,631 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:05,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:05,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1894554607, now seen corresponding path program 1 times [2023-04-02 02:53:05,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:05,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911275995] [2023-04-02 02:53:05,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:05,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:06,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:06,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:53:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:53:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:53:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:53:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:53:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:53:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:53:06,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:06,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911275995] [2023-04-02 02:53:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911275995] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:06,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:06,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:53:06,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455195257] [2023-04-02 02:53:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:06,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:53:06,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:53:06,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:53:06,138 INFO L87 Difference]: Start difference. First operand 633 states and 967 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:13,525 INFO L93 Difference]: Finished difference Result 1502 states and 2475 transitions. [2023-04-02 02:53:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:53:13,525 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 145 [2023-04-02 02:53:13,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:13,529 INFO L225 Difference]: With dead ends: 1502 [2023-04-02 02:53:13,529 INFO L226 Difference]: Without dead ends: 938 [2023-04-02 02:53:13,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:53:13,531 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 2147 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 7958 mSolverCounterSat, 779 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 8737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 779 IncrementalHoareTripleChecker+Valid, 7958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:13,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 773 Invalid, 8737 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [779 Valid, 7958 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 02:53:13,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2023-04-02 02:53:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 637. [2023-04-02 02:53:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 458 states have (on average 1.5633187772925765) internal successors, (716), 481 states have internal predecessors, (716), 129 states have call successors, (129), 51 states have call predecessors, (129), 49 states have return successors, (129), 116 states have call predecessors, (129), 124 states have call successors, (129) [2023-04-02 02:53:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 974 transitions. [2023-04-02 02:53:13,720 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 974 transitions. Word has length 145 [2023-04-02 02:53:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:13,721 INFO L495 AbstractCegarLoop]: Abstraction has 637 states and 974 transitions. [2023-04-02 02:53:13,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 974 transitions. [2023-04-02 02:53:13,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 02:53:13,723 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:13,723 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:13,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 02:53:13,724 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:13,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash -186226913, now seen corresponding path program 1 times [2023-04-02 02:53:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:13,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546274901] [2023-04-02 02:53:13,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:13,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:13,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:53:14,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:53:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:53:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:14,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:53:14,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:53:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 02:53:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:14,239 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:53:14,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:14,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546274901] [2023-04-02 02:53:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546274901] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:14,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:14,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:53:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669596473] [2023-04-02 02:53:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:14,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:53:14,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:14,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:53:14,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:53:14,241 INFO L87 Difference]: Start difference. First operand 637 states and 974 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:21,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:21,335 INFO L93 Difference]: Finished difference Result 1510 states and 2495 transitions. [2023-04-02 02:53:21,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:53:21,336 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 146 [2023-04-02 02:53:21,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:21,343 INFO L225 Difference]: With dead ends: 1510 [2023-04-02 02:53:21,343 INFO L226 Difference]: Without dead ends: 943 [2023-04-02 02:53:21,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:53:21,345 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 2781 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 7955 mSolverCounterSat, 1018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2886 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 8973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 7955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:21,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2886 Valid, 841 Invalid, 8973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1018 Valid, 7955 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-04-02 02:53:21,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2023-04-02 02:53:21,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 641. [2023-04-02 02:53:21,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 459 states have (on average 1.5620915032679739) internal successors, (717), 485 states have internal predecessors, (717), 131 states have call successors, (131), 51 states have call predecessors, (131), 50 states have return successors, (133), 116 states have call predecessors, (133), 126 states have call successors, (133) [2023-04-02 02:53:21,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 981 transitions. [2023-04-02 02:53:21,603 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 981 transitions. Word has length 146 [2023-04-02 02:53:21,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:21,603 INFO L495 AbstractCegarLoop]: Abstraction has 641 states and 981 transitions. [2023-04-02 02:53:21,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:21,604 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 981 transitions. [2023-04-02 02:53:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 02:53:21,606 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:21,606 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:21,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 02:53:21,606 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:21,607 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:21,608 INFO L85 PathProgramCache]: Analyzing trace with hash 996840906, now seen corresponding path program 1 times [2023-04-02 02:53:21,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:21,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150278150] [2023-04-02 02:53:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:21,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:21,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:21,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:21,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:21,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:53:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:22,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:53:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:53:22,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:53:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:53:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,076 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:22,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150278150] [2023-04-02 02:53:22,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150278150] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:22,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909645403] [2023-04-02 02:53:22,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:22,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:22,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:22,086 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:22,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 02:53:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,520 INFO L262 TraceCheckSpWp]: Trace formula consists of 2308 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:22,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:22,569 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-04-02 02:53:22,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:22,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909645403] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:22,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:22,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2023-04-02 02:53:22,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280849886] [2023-04-02 02:53:22,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:22,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:53:22,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:22,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:53:22,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:53:22,571 INFO L87 Difference]: Start difference. First operand 641 states and 981 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 02:53:23,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:23,188 INFO L93 Difference]: Finished difference Result 1764 states and 2768 transitions. [2023-04-02 02:53:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:53:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2023-04-02 02:53:23,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:23,194 INFO L225 Difference]: With dead ends: 1764 [2023-04-02 02:53:23,194 INFO L226 Difference]: Without dead ends: 1200 [2023-04-02 02:53:23,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 187 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:53:23,197 INFO L413 NwaCegarLoop]: 1750 mSDtfsCounter, 859 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:23,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 2682 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:53:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1200 states. [2023-04-02 02:53:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1200 to 1192. [2023-04-02 02:53:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1192 states, 859 states have (on average 1.5809080325960418) internal successors, (1358), 906 states have internal predecessors, (1358), 240 states have call successors, (240), 88 states have call predecessors, (240), 92 states have return successors, (258), 221 states have call predecessors, (258), 234 states have call successors, (258) [2023-04-02 02:53:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1856 transitions. [2023-04-02 02:53:23,563 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1856 transitions. Word has length 147 [2023-04-02 02:53:23,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:23,563 INFO L495 AbstractCegarLoop]: Abstraction has 1192 states and 1856 transitions. [2023-04-02 02:53:23,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-02 02:53:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1856 transitions. [2023-04-02 02:53:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 02:53:23,566 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:23,566 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:23,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 02:53:23,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-02 02:53:23,771 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:23,771 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:23,771 INFO L85 PathProgramCache]: Analyzing trace with hash 337309384, now seen corresponding path program 1 times [2023-04-02 02:53:23,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:23,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383201610] [2023-04-02 02:53:23,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:23,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:24,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:24,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:53:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:53:24,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:53:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:53:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:53:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,318 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:24,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:24,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383201610] [2023-04-02 02:53:24,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383201610] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:24,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482560751] [2023-04-02 02:53:24,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:24,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:24,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:24,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:24,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 02:53:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 2311 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:24,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:24,934 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:24,934 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:24,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482560751] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:24,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:24,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955704183] [2023-04-02 02:53:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:24,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:24,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:24,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:24,936 INFO L87 Difference]: Start difference. First operand 1192 states and 1856 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:25,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:25,813 INFO L93 Difference]: Finished difference Result 2323 states and 3709 transitions. [2023-04-02 02:53:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:25,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2023-04-02 02:53:25,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:25,818 INFO L225 Difference]: With dead ends: 2323 [2023-04-02 02:53:25,818 INFO L226 Difference]: Without dead ends: 1208 [2023-04-02 02:53:25,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:25,822 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 862 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:25,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2265 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:25,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2023-04-02 02:53:26,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 1208. [2023-04-02 02:53:26,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 873 states have (on average 1.5830469644902634) internal successors, (1382), 920 states have internal predecessors, (1382), 240 states have call successors, (240), 90 states have call predecessors, (240), 94 states have return successors, (260), 221 states have call predecessors, (260), 234 states have call successors, (260) [2023-04-02 02:53:26,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1882 transitions. [2023-04-02 02:53:26,208 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1882 transitions. Word has length 147 [2023-04-02 02:53:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:26,209 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 1882 transitions. [2023-04-02 02:53:26,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1882 transitions. [2023-04-02 02:53:26,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 02:53:26,211 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:26,212 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:26,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:26,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 02:53:26,420 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:26,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:26,420 INFO L85 PathProgramCache]: Analyzing trace with hash 584884147, now seen corresponding path program 1 times [2023-04-02 02:53:26,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:26,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093472607] [2023-04-02 02:53:26,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:26,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:26,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:26,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:53:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:53:26,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:53:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:53:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:53:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 02:53:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,898 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:26,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:26,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093472607] [2023-04-02 02:53:26,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093472607] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:26,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519396927] [2023-04-02 02:53:26,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:26,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:26,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:26,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:26,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 02:53:27,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:27,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:27,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:27,466 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:27,466 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:27,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519396927] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:27,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:27,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:27,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244394282] [2023-04-02 02:53:27,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:27,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:27,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:27,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:27,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:27,468 INFO L87 Difference]: Start difference. First operand 1208 states and 1882 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:28,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:28,248 INFO L93 Difference]: Finished difference Result 2355 states and 3755 transitions. [2023-04-02 02:53:28,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:28,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 150 [2023-04-02 02:53:28,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:28,254 INFO L225 Difference]: With dead ends: 2355 [2023-04-02 02:53:28,254 INFO L226 Difference]: Without dead ends: 1224 [2023-04-02 02:53:28,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:28,260 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 865 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:28,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [883 Valid, 2264 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2023-04-02 02:53:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1224. [2023-04-02 02:53:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 887 states have (on average 1.585118376550169) internal successors, (1406), 934 states have internal predecessors, (1406), 240 states have call successors, (240), 92 states have call predecessors, (240), 96 states have return successors, (262), 221 states have call predecessors, (262), 234 states have call successors, (262) [2023-04-02 02:53:28,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1908 transitions. [2023-04-02 02:53:28,644 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1908 transitions. Word has length 150 [2023-04-02 02:53:28,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:28,644 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1908 transitions. [2023-04-02 02:53:28,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:28,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1908 transitions. [2023-04-02 02:53:28,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-04-02 02:53:28,647 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:28,648 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:28,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:28,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:28,849 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:28,850 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash -592636820, now seen corresponding path program 1 times [2023-04-02 02:53:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:28,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713696358] [2023-04-02 02:53:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:28,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:29,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:29,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:29,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:29,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:53:29,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:53:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:53:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 02:53:29,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:29,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,300 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:29,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:29,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713696358] [2023-04-02 02:53:29,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713696358] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:29,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751334974] [2023-04-02 02:53:29,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:29,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:29,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:29,305 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:29,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 02:53:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 2317 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:29,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:29,817 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:29,817 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:29,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751334974] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:29,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:29,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:29,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527813665] [2023-04-02 02:53:29,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:29,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:29,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:29,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:29,819 INFO L87 Difference]: Start difference. First operand 1224 states and 1908 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:30,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:30,559 INFO L93 Difference]: Finished difference Result 2387 states and 3801 transitions. [2023-04-02 02:53:30,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:30,560 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 153 [2023-04-02 02:53:30,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:30,566 INFO L225 Difference]: With dead ends: 2387 [2023-04-02 02:53:30,566 INFO L226 Difference]: Without dead ends: 1240 [2023-04-02 02:53:30,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:30,570 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 852 mSDsluCounter, 1360 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2265 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:30,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 2265 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:30,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2023-04-02 02:53:30,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1240. [2023-04-02 02:53:30,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 901 states have (on average 1.5871254162042174) internal successors, (1430), 948 states have internal predecessors, (1430), 240 states have call successors, (240), 94 states have call predecessors, (240), 98 states have return successors, (264), 221 states have call predecessors, (264), 234 states have call successors, (264) [2023-04-02 02:53:30,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1934 transitions. [2023-04-02 02:53:30,947 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1934 transitions. Word has length 153 [2023-04-02 02:53:30,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:30,947 INFO L495 AbstractCegarLoop]: Abstraction has 1240 states and 1934 transitions. [2023-04-02 02:53:30,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:30,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1934 transitions. [2023-04-02 02:53:30,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-04-02 02:53:30,950 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:30,950 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:30,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:31,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:31,151 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:31,151 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:31,152 INFO L85 PathProgramCache]: Analyzing trace with hash 981007887, now seen corresponding path program 1 times [2023-04-02 02:53:31,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:31,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765981273] [2023-04-02 02:53:31,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:31,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:31,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:31,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:53:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:53:31,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:53:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:53:31,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 02:53:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:53:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:53:31,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:31,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765981273] [2023-04-02 02:53:31,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765981273] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:31,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530492973] [2023-04-02 02:53:31,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:31,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:31,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:31,617 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 02:53:31,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:31,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:32,083 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:53:32,083 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:32,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530492973] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:32,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:32,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:32,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356206780] [2023-04-02 02:53:32,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:32,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:32,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:32,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:32,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:32,085 INFO L87 Difference]: Start difference. First operand 1240 states and 1934 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:32,845 INFO L93 Difference]: Finished difference Result 2419 states and 3847 transitions. [2023-04-02 02:53:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2023-04-02 02:53:32,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:32,851 INFO L225 Difference]: With dead ends: 2419 [2023-04-02 02:53:32,851 INFO L226 Difference]: Without dead ends: 1256 [2023-04-02 02:53:32,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:32,856 INFO L413 NwaCegarLoop]: 905 mSDtfsCounter, 859 mSDsluCounter, 1359 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2264 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:32,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 2264 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2023-04-02 02:53:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2023-04-02 02:53:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 915 states have (on average 1.5890710382513662) internal successors, (1454), 962 states have internal predecessors, (1454), 240 states have call successors, (240), 96 states have call predecessors, (240), 100 states have return successors, (266), 221 states have call predecessors, (266), 234 states have call successors, (266) [2023-04-02 02:53:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1960 transitions. [2023-04-02 02:53:33,277 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1960 transitions. Word has length 156 [2023-04-02 02:53:33,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:33,278 INFO L495 AbstractCegarLoop]: Abstraction has 1256 states and 1960 transitions. [2023-04-02 02:53:33,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:33,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1960 transitions. [2023-04-02 02:53:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 02:53:33,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:33,280 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:33,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:33,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:33,481 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:33,481 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:33,481 INFO L85 PathProgramCache]: Analyzing trace with hash -666954736, now seen corresponding path program 1 times [2023-04-02 02:53:33,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:33,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830467294] [2023-04-02 02:53:33,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:33,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:34,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:53:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:53:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,449 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:34,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:34,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830467294] [2023-04-02 02:53:34,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830467294] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:34,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185659278] [2023-04-02 02:53:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:34,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:34,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:34,451 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:34,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 02:53:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 23 conjunts are in the unsatisfiable core [2023-04-02 02:53:34,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:34,965 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:34,966 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:34,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185659278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:34,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:34,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2023-04-02 02:53:34,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22729528] [2023-04-02 02:53:34,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:34,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:53:34,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:34,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:53:34,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:34,967 INFO L87 Difference]: Start difference. First operand 1256 states and 1960 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:35,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:35,520 INFO L93 Difference]: Finished difference Result 2859 states and 4438 transitions. [2023-04-02 02:53:35,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:53:35,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2023-04-02 02:53:35,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:35,529 INFO L225 Difference]: With dead ends: 2859 [2023-04-02 02:53:35,529 INFO L226 Difference]: Without dead ends: 1680 [2023-04-02 02:53:35,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 205 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:35,534 INFO L413 NwaCegarLoop]: 1025 mSDtfsCounter, 601 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 601 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:35,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [601 Valid, 1495 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:53:35,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2023-04-02 02:53:35,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1677. [2023-04-02 02:53:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1677 states, 1209 states have (on average 1.543424317617866) internal successors, (1866), 1268 states have internal predecessors, (1866), 313 states have call successors, (313), 142 states have call predecessors, (313), 154 states have return successors, (378), 290 states have call predecessors, (378), 305 states have call successors, (378) [2023-04-02 02:53:35,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1677 states to 1677 states and 2557 transitions. [2023-04-02 02:53:35,968 INFO L78 Accepts]: Start accepts. Automaton has 1677 states and 2557 transitions. Word has length 159 [2023-04-02 02:53:35,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:35,968 INFO L495 AbstractCegarLoop]: Abstraction has 1677 states and 2557 transitions. [2023-04-02 02:53:35,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 2 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:35,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1677 states and 2557 transitions. [2023-04-02 02:53:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 02:53:35,970 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:35,970 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:35,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:36,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:36,171 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:36,172 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:36,172 INFO L85 PathProgramCache]: Analyzing trace with hash -743855534, now seen corresponding path program 1 times [2023-04-02 02:53:36,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:36,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251270404] [2023-04-02 02:53:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:36,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:36,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:36,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:37,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:37,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:37,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:53:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:37,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:53:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,115 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:37,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251270404] [2023-04-02 02:53:37,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251270404] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969448981] [2023-04-02 02:53:37,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:37,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:37,117 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:37,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 02:53:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-02 02:53:37,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:37,706 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:37,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:37,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969448981] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:37,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:37,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2023-04-02 02:53:37,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301516640] [2023-04-02 02:53:37,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:37,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:37,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:37,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:37,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:37,708 INFO L87 Difference]: Start difference. First operand 1677 states and 2557 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:38,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:38,528 INFO L93 Difference]: Finished difference Result 3293 states and 5073 transitions. [2023-04-02 02:53:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:38,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2023-04-02 02:53:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:38,535 INFO L225 Difference]: With dead ends: 3293 [2023-04-02 02:53:38,536 INFO L226 Difference]: Without dead ends: 1694 [2023-04-02 02:53:38,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:38,542 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 842 mSDsluCounter, 2606 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 3606 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:38,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 3606 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:53:38,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-04-02 02:53:38,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1687. [2023-04-02 02:53:38,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1215 states have (on average 1.539917695473251) internal successors, (1871), 1277 states have internal predecessors, (1871), 315 states have call successors, (315), 143 states have call predecessors, (315), 156 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2574 transitions. [2023-04-02 02:53:38,992 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2574 transitions. Word has length 159 [2023-04-02 02:53:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:38,992 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2574 transitions. [2023-04-02 02:53:38,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2574 transitions. [2023-04-02 02:53:38,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:53:38,995 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:38,995 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:39,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:39,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:39,195 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:39,196 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:39,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1105763798, now seen corresponding path program 1 times [2023-04-02 02:53:39,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:39,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455870895] [2023-04-02 02:53:39,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:39,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:39,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:39,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:40,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:40,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:40,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:40,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:53:40,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:40,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:40,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:40,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:40,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455870895] [2023-04-02 02:53:40,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455870895] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:40,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666790381] [2023-04-02 02:53:40,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:40,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:40,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:40,092 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:40,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 02:53:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:40,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 02:53:40,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:40,711 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:40,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:40,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666790381] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:40,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:40,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2023-04-02 02:53:40,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420843431] [2023-04-02 02:53:40,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:40,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:53:40,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:40,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:53:40,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:40,714 INFO L87 Difference]: Start difference. First operand 1687 states and 2574 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:41,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:41,436 INFO L93 Difference]: Finished difference Result 3300 states and 5052 transitions. [2023-04-02 02:53:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:41,437 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2023-04-02 02:53:41,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:41,442 INFO L225 Difference]: With dead ends: 3300 [2023-04-02 02:53:41,443 INFO L226 Difference]: Without dead ends: 1695 [2023-04-02 02:53:41,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:41,447 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 413 mSDsluCounter, 3172 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 4245 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:41,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 4245 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-02 02:53:41,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1695 states. [2023-04-02 02:53:42,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1695 to 1687. [2023-04-02 02:53:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1215 states have (on average 1.536625514403292) internal successors, (1867), 1277 states have internal predecessors, (1867), 315 states have call successors, (315), 143 states have call predecessors, (315), 156 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:42,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2570 transitions. [2023-04-02 02:53:42,033 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2570 transitions. Word has length 164 [2023-04-02 02:53:42,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:42,033 INFO L495 AbstractCegarLoop]: Abstraction has 1687 states and 2570 transitions. [2023-04-02 02:53:42,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:42,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2570 transitions. [2023-04-02 02:53:42,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:53:42,037 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:42,038 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:42,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:42,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-04-02 02:53:42,247 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:42,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:42,247 INFO L85 PathProgramCache]: Analyzing trace with hash -281993212, now seen corresponding path program 1 times [2023-04-02 02:53:42,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:42,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991535411] [2023-04-02 02:53:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:42,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:42,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 02:53:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:53:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:53:43,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:53:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:53:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:53:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:53:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:53:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,238 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-04-02 02:53:43,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:43,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991535411] [2023-04-02 02:53:43,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991535411] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:43,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261163113] [2023-04-02 02:53:43,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:43,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:43,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:43,240 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:43,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 02:53:43,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:43,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:43,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:53:43,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261163113] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:43,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:43,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:43,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755711350] [2023-04-02 02:53:43,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:43,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:43,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:43,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:43,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:43,669 INFO L87 Difference]: Start difference. First operand 1687 states and 2570 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:44,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:44,219 INFO L93 Difference]: Finished difference Result 3373 states and 5206 transitions. [2023-04-02 02:53:44,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:44,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2023-04-02 02:53:44,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:44,225 INFO L225 Difference]: With dead ends: 3373 [2023-04-02 02:53:44,226 INFO L226 Difference]: Without dead ends: 1765 [2023-04-02 02:53:44,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:44,231 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 213 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:44,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2583 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2023-04-02 02:53:44,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1765. [2023-04-02 02:53:44,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1291 states have (on average 1.5592563903950427) internal successors, (2013), 1353 states have internal predecessors, (2013), 315 states have call successors, (315), 145 states have call predecessors, (315), 158 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:44,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 2716 transitions. [2023-04-02 02:53:44,665 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 2716 transitions. Word has length 192 [2023-04-02 02:53:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:44,665 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 2716 transitions. [2023-04-02 02:53:44,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:44,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 2716 transitions. [2023-04-02 02:53:44,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-02 02:53:44,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:44,669 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:44,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:44,869 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-04-02 02:53:44,869 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:44,870 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:44,870 INFO L85 PathProgramCache]: Analyzing trace with hash 140332705, now seen corresponding path program 1 times [2023-04-02 02:53:44,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:44,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438918436] [2023-04-02 02:53:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:44,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:45,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:45,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:45,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:53:45,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:53:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:53:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:53:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:53:45,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:45,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:53:45,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 02:53:45,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 02:53:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,782 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-02 02:53:45,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438918436] [2023-04-02 02:53:45,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438918436] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:45,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040613505] [2023-04-02 02:53:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:45,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:45,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:45,785 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:45,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 02:53:46,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:46,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:46,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:46,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:46,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040613505] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:46,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:46,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:46,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436975601] [2023-04-02 02:53:46,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:46,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:46,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:46,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:46,249 INFO L87 Difference]: Start difference. First operand 1765 states and 2716 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:46,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:46,914 INFO L93 Difference]: Finished difference Result 3529 states and 5496 transitions. [2023-04-02 02:53:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:46,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2023-04-02 02:53:46,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:46,922 INFO L225 Difference]: With dead ends: 3529 [2023-04-02 02:53:46,922 INFO L226 Difference]: Without dead ends: 1843 [2023-04-02 02:53:46,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:46,926 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 211 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:46,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2583 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:46,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2023-04-02 02:53:47,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 1843. [2023-04-02 02:53:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1843 states, 1367 states have (on average 1.5793708851499635) internal successors, (2159), 1429 states have internal predecessors, (2159), 315 states have call successors, (315), 147 states have call predecessors, (315), 160 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:47,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1843 states to 1843 states and 2862 transitions. [2023-04-02 02:53:47,388 INFO L78 Accepts]: Start accepts. Automaton has 1843 states and 2862 transitions. Word has length 197 [2023-04-02 02:53:47,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:47,389 INFO L495 AbstractCegarLoop]: Abstraction has 1843 states and 2862 transitions. [2023-04-02 02:53:47,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1843 states and 2862 transitions. [2023-04-02 02:53:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-02 02:53:47,393 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:47,394 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:47,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:47,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-04-02 02:53:47,650 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:47,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:47,650 INFO L85 PathProgramCache]: Analyzing trace with hash 512690577, now seen corresponding path program 1 times [2023-04-02 02:53:47,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:47,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18032700] [2023-04-02 02:53:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:48,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:48,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 02:53:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:53:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:53:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:53:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:53:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-04-02 02:53:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-02 02:53:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-02 02:53:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,572 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-02 02:53:48,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:48,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18032700] [2023-04-02 02:53:48,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18032700] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:48,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221568260] [2023-04-02 02:53:48,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:48,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:48,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:48,574 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:48,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 02:53:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:48,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:48,996 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:48,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:48,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221568260] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:48,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:48,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419483207] [2023-04-02 02:53:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:48,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:48,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:48,998 INFO L87 Difference]: Start difference. First operand 1843 states and 2862 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:49,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:49,609 INFO L93 Difference]: Finished difference Result 3685 states and 5786 transitions. [2023-04-02 02:53:49,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:49,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 201 [2023-04-02 02:53:49,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:49,623 INFO L225 Difference]: With dead ends: 3685 [2023-04-02 02:53:49,623 INFO L226 Difference]: Without dead ends: 1921 [2023-04-02 02:53:49,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:49,628 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 209 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:49,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2583 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2023-04-02 02:53:50,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1921. [2023-04-02 02:53:50,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1443 states have (on average 1.5973665973665974) internal successors, (2305), 1505 states have internal predecessors, (2305), 315 states have call successors, (315), 149 states have call predecessors, (315), 162 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:50,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 3008 transitions. [2023-04-02 02:53:50,107 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 3008 transitions. Word has length 201 [2023-04-02 02:53:50,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:50,107 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 3008 transitions. [2023-04-02 02:53:50,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:50,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 3008 transitions. [2023-04-02 02:53:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-02 02:53:50,112 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:50,112 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:50,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:50,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-04-02 02:53:50,321 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:50,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:50,321 INFO L85 PathProgramCache]: Analyzing trace with hash 739359588, now seen corresponding path program 1 times [2023-04-02 02:53:50,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:50,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064619469] [2023-04-02 02:53:50,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:50,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:50,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:50,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:50,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:51,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:53:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:53:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 02:53:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:53:51,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:53:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-04-02 02:53:51,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-04-02 02:53:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-04-02 02:53:51,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:51,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064619469] [2023-04-02 02:53:51,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064619469] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:51,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903478716] [2023-04-02 02:53:51,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:51,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:51,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:51,129 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:51,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 02:53:51,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:51,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:51,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:51,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903478716] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:51,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:51,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:51,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625464814] [2023-04-02 02:53:51,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:51,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:51,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:51,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:51,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:51,537 INFO L87 Difference]: Start difference. First operand 1921 states and 3008 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:52,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:52,139 INFO L93 Difference]: Finished difference Result 3841 states and 6076 transitions. [2023-04-02 02:53:52,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:52,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 204 [2023-04-02 02:53:52,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:52,146 INFO L225 Difference]: With dead ends: 3841 [2023-04-02 02:53:52,146 INFO L226 Difference]: Without dead ends: 1999 [2023-04-02 02:53:52,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:52,150 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 207 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:52,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2583 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:52,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2023-04-02 02:53:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1999. [2023-04-02 02:53:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1519 states have (on average 1.6135615536537196) internal successors, (2451), 1581 states have internal predecessors, (2451), 315 states have call successors, (315), 151 states have call predecessors, (315), 164 states have return successors, (388), 290 states have call predecessors, (388), 307 states have call successors, (388) [2023-04-02 02:53:52,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 3154 transitions. [2023-04-02 02:53:52,597 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 3154 transitions. Word has length 204 [2023-04-02 02:53:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:52,597 INFO L495 AbstractCegarLoop]: Abstraction has 1999 states and 3154 transitions. [2023-04-02 02:53:52,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 3154 transitions. [2023-04-02 02:53:52,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-04-02 02:53:52,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:52,603 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:53:52,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:52,811 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-04-02 02:53:52,812 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:52,812 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:52,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1169998338, now seen corresponding path program 1 times [2023-04-02 02:53:52,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:52,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757105573] [2023-04-02 02:53:52,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:52,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:53,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:53,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:53,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:53:53,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:53,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:53:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:54,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:53:54,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:53:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:53:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 02:53:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-04-02 02:53:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-04-02 02:53:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-04-02 02:53:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-04-02 02:53:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 14 proven. 32 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-04-02 02:53:54,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:54,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757105573] [2023-04-02 02:53:54,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757105573] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:54,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619024743] [2023-04-02 02:53:54,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:54,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:54,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:54,102 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:54,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 02:53:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:54,561 INFO L262 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 21 conjunts are in the unsatisfiable core [2023-04-02 02:53:54,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:54,955 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 120 proven. 24 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-04-02 02:53:54,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 02:53:55,701 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 9 proven. 20 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-04-02 02:53:55,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619024743] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 02:53:55,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 02:53:55,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 10] total 34 [2023-04-02 02:53:55,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162016656] [2023-04-02 02:53:55,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 02:53:55,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-04-02 02:53:55,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:55,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-04-02 02:53:55,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=989, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 02:53:55,704 INFO L87 Difference]: Start difference. First operand 1999 states and 3154 transitions. Second operand has 34 states, 32 states have (on average 9.96875) internal successors, (319), 24 states have internal predecessors, (319), 15 states have call successors, (105), 14 states have call predecessors, (105), 16 states have return successors, (95), 17 states have call predecessors, (95), 15 states have call successors, (95)