/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_spec13_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:48:23,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:48:23,626 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:48:23,661 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:48:23,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:48:23,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:48:23,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:48:23,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:48:23,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:48:23,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:48:23,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:48:23,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:48:23,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:48:23,672 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:48:23,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:48:23,673 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:48:23,674 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:48:23,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:48:23,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:48:23,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:48:23,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:48:23,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:48:23,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:48:23,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:48:23,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:48:23,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:48:23,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:48:23,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:48:23,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:48:23,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:48:23,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:48:23,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:48:23,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:48:23,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:48:23,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:48:23,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:48:23,697 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:48:23,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:48:23,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:48:23,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:48:23,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:48:23,703 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 02:48:23,740 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:48:23,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:48:23,741 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:48:23,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:48:23,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:48:23,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:48:23,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:48:23,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:48:23,743 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:48:23,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:48:23,744 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:48:23,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:48:23,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:48:23,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:48:23,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:48:23,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:23,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:48:23,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:48:23,747 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:48:23,747 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:48:23,747 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:48:23,747 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:48:23,747 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:48:23,747 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:48:23,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:48:23,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:48:24,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:48:24,003 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:48:24,003 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:48:24,004 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c [2023-04-02 02:48:25,227 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:48:25,538 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:48:25,538 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product31.cil.c [2023-04-02 02:48:25,562 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12823434/3890b538f2d6444e9a43f7cce7f2efbd/FLAG6004c36e1 [2023-04-02 02:48:25,577 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c12823434/3890b538f2d6444e9a43f7cce7f2efbd [2023-04-02 02:48:25,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:48:25,582 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:48:25,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:25,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:48:25,591 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:48:25,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:25" (1/1) ... [2023-04-02 02:48:25,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dde6e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:25, skipping insertion in model container [2023-04-02 02:48:25,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:25" (1/1) ... [2023-04-02 02:48:25,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:48:25,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:48:25,815 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_spec13_product31.cil.c[1546,1559] [2023-04-02 02:48:26,193 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:26,209 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:48:26,222 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_spec13_product31.cil.c[1546,1559] [2023-04-02 02:48:26,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:26,345 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:48:26,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26 WrapperNode [2023-04-02 02:48:26,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:26,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:48:26,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:48:26,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:48:26,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,461 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:48:26,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:48:26,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:48:26,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:48:26,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (1/1) ... [2023-04-02 02:48:26,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:26,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:26,534 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 02:48:26,542 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 02:48:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:48:26,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:48:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:48:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:48:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:48:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:48:26,575 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:48:26,576 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:48:26,577 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:48:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:48:26,578 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:48:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:48:26,579 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:48:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:48:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:48:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:48:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:48:26,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:48:26,581 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-04-02 02:48:26,582 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-04-02 02:48:26,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:48:26,583 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:48:26,583 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:48:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:48:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:48:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:48:26,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:48:26,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:48:26,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:48:26,587 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:48:26,588 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:48:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:48:26,589 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:48:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:48:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:48:26,593 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:48:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:48:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:48:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:48:26,598 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:48:26,599 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:48:26,600 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__twothirdsfull [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:48:26,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:48:26,897 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:48:26,899 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:48:28,241 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:48:28,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:48:28,262 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:48:28,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:28 BoogieIcfgContainer [2023-04-02 02:48:28,266 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:48:28,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:48:28,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:48:28,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:48:28,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:48:25" (1/3) ... [2023-04-02 02:48:28,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5423d3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:28, skipping insertion in model container [2023-04-02 02:48:28,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:26" (2/3) ... [2023-04-02 02:48:28,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5423d3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:28, skipping insertion in model container [2023-04-02 02:48:28,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:28" (3/3) ... [2023-04-02 02:48:28,304 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product31.cil.c [2023-04-02 02:48:28,320 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:48:28,320 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:48:28,404 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:48:28,409 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;@20c80a2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:48:28,409 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:48:28,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 832 states, 583 states have (on average 1.6295025728987993) internal successors, (950), 607 states have internal predecessors, (950), 182 states have call successors, (182), 55 states have call predecessors, (182), 55 states have return successors, (182), 176 states have call predecessors, (182), 182 states have call successors, (182) [2023-04-02 02:48:28,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-04-02 02:48:28,446 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:28,447 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:28,447 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:28,451 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1802276758, now seen corresponding path program 1 times [2023-04-02 02:48:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591736347] [2023-04-02 02:48:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:28,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 02:48:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:48:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:29,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:29,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 02:48:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:48:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:48:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 02:48:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 02:48:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,932 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:29,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:29,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591736347] [2023-04-02 02:48:29,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591736347] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:29,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619505750] [2023-04-02 02:48:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:29,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:29,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:29,938 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 02:48:29,946 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 02:48:30,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 2680 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:30,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:30,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619505750] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:30,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:30,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-04-02 02:48:30,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619347040] [2023-04-02 02:48:30,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:30,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:30,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:30,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:30,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:30,709 INFO L87 Difference]: Start difference. First operand has 832 states, 583 states have (on average 1.6295025728987993) internal successors, (950), 607 states have internal predecessors, (950), 182 states have call successors, (182), 55 states have call predecessors, (182), 55 states have return successors, (182), 176 states have call predecessors, (182), 182 states have call successors, (182) Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:30,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:30,887 INFO L93 Difference]: Finished difference Result 1379 states and 2218 transitions. [2023-04-02 02:48:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:30,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 161 [2023-04-02 02:48:30,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:30,906 INFO L225 Difference]: With dead ends: 1379 [2023-04-02 02:48:30,906 INFO L226 Difference]: Without dead ends: 695 [2023-04-02 02:48:30,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:30,920 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 26 mSDsluCounter, 2155 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:30,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3237 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:30,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2023-04-02 02:48:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 695. [2023-04-02 02:48:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 695 states, 512 states have (on average 1.634765625) internal successors, (837), 528 states have internal predecessors, (837), 133 states have call successors, (133), 54 states have call predecessors, (133), 49 states have return successors, (127), 124 states have call predecessors, (127), 127 states have call successors, (127) [2023-04-02 02:48:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 1097 transitions. [2023-04-02 02:48:31,032 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 1097 transitions. Word has length 161 [2023-04-02 02:48:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:31,033 INFO L495 AbstractCegarLoop]: Abstraction has 695 states and 1097 transitions. [2023-04-02 02:48:31,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 1097 transitions. [2023-04-02 02:48:31,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-04-02 02:48:31,046 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:31,046 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:31,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:31,259 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,SelfDestructingSolverStorable0 [2023-04-02 02:48:31,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:31,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:31,261 INFO L85 PathProgramCache]: Analyzing trace with hash -401025472, now seen corresponding path program 1 times [2023-04-02 02:48:31,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:31,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144347656] [2023-04-02 02:48:31,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:31,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:31,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:31,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:31,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:31,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:48:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 02:48:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 02:48:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:48:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:48:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 02:48:32,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:48:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,143 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 02:48:32,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:32,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144347656] [2023-04-02 02:48:32,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144347656] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:32,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744210969] [2023-04-02 02:48:32,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:32,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:32,149 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 02:48:32,162 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 02:48:32,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 2682 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:32,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:32,787 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:32,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744210969] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:32,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:32,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2023-04-02 02:48:32,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862488360] [2023-04-02 02:48:32,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:32,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:32,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:32,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:32,792 INFO L87 Difference]: Start difference. First operand 695 states and 1097 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:32,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:32,986 INFO L93 Difference]: Finished difference Result 1401 states and 2241 transitions. [2023-04-02 02:48:32,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:32,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 163 [2023-04-02 02:48:32,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:32,992 INFO L225 Difference]: With dead ends: 1401 [2023-04-02 02:48:32,992 INFO L226 Difference]: Without dead ends: 734 [2023-04-02 02:48:32,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:32,997 INFO L413 NwaCegarLoop]: 1030 mSDtfsCounter, 137 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:32,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 3049 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:32,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-04-02 02:48:33,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2023-04-02 02:48:33,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 549 states have (on average 1.6557377049180328) internal successors, (909), 565 states have internal predecessors, (909), 134 states have call successors, (134), 55 states have call predecessors, (134), 50 states have return successors, (128), 125 states have call predecessors, (128), 128 states have call successors, (128) [2023-04-02 02:48:33,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1171 transitions. [2023-04-02 02:48:33,031 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1171 transitions. Word has length 163 [2023-04-02 02:48:33,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:33,031 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1171 transitions. [2023-04-02 02:48:33,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1171 transitions. [2023-04-02 02:48:33,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-04-02 02:48:33,042 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:33,042 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:33,055 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 02:48:33,251 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,SelfDestructingSolverStorable1 [2023-04-02 02:48:33,252 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:33,252 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash 717801096, now seen corresponding path program 1 times [2023-04-02 02:48:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:33,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594554493] [2023-04-02 02:48:33,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:33,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:33,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 02:48:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:48:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:48:33,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:33,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:48:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:48:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:48:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:48:33,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-04-02 02:48:33,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594554493] [2023-04-02 02:48:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594554493] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877955546] [2023-04-02 02:48:33,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:33,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:33,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:33,961 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 02:48:33,964 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 02:48:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 2684 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:34,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:34,507 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:34,508 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:34,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877955546] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:34,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:34,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2023-04-02 02:48:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395202181] [2023-04-02 02:48:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:34,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:34,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:48:34,510 INFO L87 Difference]: Start difference. First operand 734 states and 1171 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:34,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:34,647 INFO L93 Difference]: Finished difference Result 1454 states and 2332 transitions. [2023-04-02 02:48:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:34,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 165 [2023-04-02 02:48:34,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:34,654 INFO L225 Difference]: With dead ends: 1454 [2023-04-02 02:48:34,654 INFO L226 Difference]: Without dead ends: 748 [2023-04-02 02:48:34,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:34,660 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 83 mSDsluCounter, 5257 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 6329 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:34,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 6329 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-04-02 02:48:34,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 741. [2023-04-02 02:48:34,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 552 states have (on average 1.6521739130434783) internal successors, (912), 570 states have internal predecessors, (912), 136 states have call successors, (136), 55 states have call predecessors, (136), 52 states have return successors, (134), 127 states have call predecessors, (134), 130 states have call successors, (134) [2023-04-02 02:48:34,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1182 transitions. [2023-04-02 02:48:34,702 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1182 transitions. Word has length 165 [2023-04-02 02:48:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:34,702 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1182 transitions. [2023-04-02 02:48:34,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1182 transitions. [2023-04-02 02:48:34,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-04-02 02:48:34,707 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:34,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:34,723 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 02:48:34,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:34,926 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:34,927 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1861747273, now seen corresponding path program 1 times [2023-04-02 02:48:34,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:34,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645443289] [2023-04-02 02:48:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:34,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:35,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:35,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:35,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:48:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:48:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:35,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:48:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:48:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:48:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 02:48:35,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:48:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:35,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645443289] [2023-04-02 02:48:35,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645443289] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:35,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869861912] [2023-04-02 02:48:35,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:35,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:35,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:35,489 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 02:48:35,513 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 02:48:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:35,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:36,002 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:36,002 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:36,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869861912] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:36,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:36,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-04-02 02:48:36,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459703198] [2023-04-02 02:48:36,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:36,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:36,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:36,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:36,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:36,004 INFO L87 Difference]: Start difference. First operand 741 states and 1182 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:36,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:36,087 INFO L93 Difference]: Finished difference Result 1467 states and 2352 transitions. [2023-04-02 02:48:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:36,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 166 [2023-04-02 02:48:36,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:36,093 INFO L225 Difference]: With dead ends: 1467 [2023-04-02 02:48:36,093 INFO L226 Difference]: Without dead ends: 752 [2023-04-02 02:48:36,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:36,099 INFO L413 NwaCegarLoop]: 1069 mSDtfsCounter, 20 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:36,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3196 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:36,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2023-04-02 02:48:36,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 750. [2023-04-02 02:48:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 560 states have (on average 1.644642857142857) internal successors, (921), 578 states have internal predecessors, (921), 136 states have call successors, (136), 56 states have call predecessors, (136), 53 states have return successors, (133), 127 states have call predecessors, (133), 130 states have call successors, (133) [2023-04-02 02:48:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1190 transitions. [2023-04-02 02:48:36,130 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1190 transitions. Word has length 166 [2023-04-02 02:48:36,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:36,130 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1190 transitions. [2023-04-02 02:48:36,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:36,131 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1190 transitions. [2023-04-02 02:48:36,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-04-02 02:48:36,136 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:36,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:36,148 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 02:48:36,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:36,346 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:36,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:36,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1638904339, now seen corresponding path program 1 times [2023-04-02 02:48:36,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:36,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383768264] [2023-04-02 02:48:36,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:36,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:36,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:48:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:48:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:36,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:48:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:48:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:48:37,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 02:48:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:48:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:48:37,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383768264] [2023-04-02 02:48:37,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383768264] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:37,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567379610] [2023-04-02 02:48:37,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:37,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:37,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:37,009 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 02:48:37,034 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 02:48:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 2685 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:37,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:37,600 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:37,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567379610] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:37,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:37,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2023-04-02 02:48:37,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934018988] [2023-04-02 02:48:37,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:37,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:37,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:37,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:37,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:37,602 INFO L87 Difference]: Start difference. First operand 750 states and 1190 transitions. Second operand has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:37,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:37,748 INFO L93 Difference]: Finished difference Result 1471 states and 2346 transitions. [2023-04-02 02:48:37,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:37,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 166 [2023-04-02 02:48:37,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:37,754 INFO L225 Difference]: With dead ends: 1471 [2023-04-02 02:48:37,754 INFO L226 Difference]: Without dead ends: 762 [2023-04-02 02:48:37,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:48:37,757 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 94 mSDsluCounter, 5236 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6306 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:37,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6306 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:37,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2023-04-02 02:48:37,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 750. [2023-04-02 02:48:37,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 560 states have (on average 1.644642857142857) internal successors, (921), 578 states have internal predecessors, (921), 136 states have call successors, (136), 56 states have call predecessors, (136), 53 states have return successors, (133), 127 states have call predecessors, (133), 130 states have call successors, (133) [2023-04-02 02:48:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1190 transitions. [2023-04-02 02:48:37,785 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1190 transitions. Word has length 166 [2023-04-02 02:48:37,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:37,787 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1190 transitions. [2023-04-02 02:48:37,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:37,787 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1190 transitions. [2023-04-02 02:48:37,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-02 02:48:37,791 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:37,792 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:37,803 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 02:48:38,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:38,004 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:38,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1525481135, now seen corresponding path program 1 times [2023-04-02 02:48:38,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:38,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349384464] [2023-04-02 02:48:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:38,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:38,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:38,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:38,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:48:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:48:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:48:38,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 02:48:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 02:48:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:48:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:38,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:38,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349384464] [2023-04-02 02:48:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349384464] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:38,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400980036] [2023-04-02 02:48:38,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:38,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:38,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:38,520 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 02:48:38,523 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 02:48:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 2687 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:38,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:39,004 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 02:48:39,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:39,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1400980036] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:39,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:39,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-04-02 02:48:39,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086264790] [2023-04-02 02:48:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:39,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:39,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:39,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:39,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:39,006 INFO L87 Difference]: Start difference. First operand 750 states and 1190 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:48:39,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:39,069 INFO L93 Difference]: Finished difference Result 1447 states and 2313 transitions. [2023-04-02 02:48:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:39,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 169 [2023-04-02 02:48:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:39,074 INFO L225 Difference]: With dead ends: 1447 [2023-04-02 02:48:39,074 INFO L226 Difference]: Without dead ends: 750 [2023-04-02 02:48:39,078 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:39,078 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 35 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:39,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3194 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:39,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-04-02 02:48:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-04-02 02:48:39,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 560 states have (on average 1.6357142857142857) internal successors, (916), 578 states have internal predecessors, (916), 136 states have call successors, (136), 56 states have call predecessors, (136), 53 states have return successors, (133), 127 states have call predecessors, (133), 130 states have call successors, (133) [2023-04-02 02:48:39,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1185 transitions. [2023-04-02 02:48:39,126 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1185 transitions. Word has length 169 [2023-04-02 02:48:39,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:39,126 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1185 transitions. [2023-04-02 02:48:39,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:48:39,126 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1185 transitions. [2023-04-02 02:48:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-04-02 02:48:39,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:39,130 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:39,139 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 02:48:39,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:39,340 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:39,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:39,340 INFO L85 PathProgramCache]: Analyzing trace with hash -781507882, now seen corresponding path program 1 times [2023-04-02 02:48:39,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:39,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32200217] [2023-04-02 02:48:39,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:39,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:39,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:48:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:48:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 02:48:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:48:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 02:48:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 02:48:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:48:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:39,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:39,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32200217] [2023-04-02 02:48:39,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32200217] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:39,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984772563] [2023-04-02 02:48:39,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:39,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:39,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:39,838 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 02:48:39,840 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 02:48:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,326 INFO L262 TraceCheckSpWp]: Trace formula consists of 2688 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:40,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:40,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:40,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984772563] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:40,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-04-02 02:48:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707819869] [2023-04-02 02:48:40,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:40,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:40,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:40,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:40,370 INFO L87 Difference]: Start difference. First operand 750 states and 1185 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:40,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:40,534 INFO L93 Difference]: Finished difference Result 1443 states and 2304 transitions. [2023-04-02 02:48:40,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:40,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 170 [2023-04-02 02:48:40,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:40,542 INFO L225 Difference]: With dead ends: 1443 [2023-04-02 02:48:40,542 INFO L226 Difference]: Without dead ends: 792 [2023-04-02 02:48:40,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:40,547 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 208 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 3038 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:40,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 3038 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:40,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2023-04-02 02:48:40,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 789. [2023-04-02 02:48:40,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 597 states have (on average 1.6549413735343383) internal successors, (988), 615 states have internal predecessors, (988), 137 states have call successors, (137), 57 states have call predecessors, (137), 54 states have return successors, (133), 128 states have call predecessors, (133), 131 states have call successors, (133) [2023-04-02 02:48:40,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1258 transitions. [2023-04-02 02:48:40,604 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1258 transitions. Word has length 170 [2023-04-02 02:48:40,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:40,605 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1258 transitions. [2023-04-02 02:48:40,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1258 transitions. [2023-04-02 02:48:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-04-02 02:48:40,612 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:40,612 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:40,624 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 02:48:40,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:40,821 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:40,822 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash 996598357, now seen corresponding path program 1 times [2023-04-02 02:48:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897656540] [2023-04-02 02:48:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:40,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:41,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:41,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:48:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:48:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 02:48:41,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:48:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 02:48:41,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 02:48:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,353 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:41,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897656540] [2023-04-02 02:48:41,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897656540] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:41,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207405236] [2023-04-02 02:48:41,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:41,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:41,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:41,355 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 02:48:41,358 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 02:48:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:41,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 2689 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:41,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:41,960 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-02 02:48:41,960 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:41,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207405236] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:41,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:41,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-02 02:48:41,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891254774] [2023-04-02 02:48:41,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:41,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:41,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:41,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:41,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:41,964 INFO L87 Difference]: Start difference. First operand 789 states and 1258 transitions. Second operand has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:42,100 INFO L93 Difference]: Finished difference Result 1457 states and 2320 transitions. [2023-04-02 02:48:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:42,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 171 [2023-04-02 02:48:42,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:42,106 INFO L225 Difference]: With dead ends: 1457 [2023-04-02 02:48:42,106 INFO L226 Difference]: Without dead ends: 806 [2023-04-02 02:48:42,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:42,111 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 82 mSDsluCounter, 5248 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:42,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6318 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:42,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2023-04-02 02:48:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 796. [2023-04-02 02:48:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 600 states have (on average 1.6516666666666666) internal successors, (991), 620 states have internal predecessors, (991), 139 states have call successors, (139), 57 states have call predecessors, (139), 56 states have return successors, (137), 130 states have call predecessors, (137), 133 states have call successors, (137) [2023-04-02 02:48:42,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1267 transitions. [2023-04-02 02:48:42,163 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1267 transitions. Word has length 171 [2023-04-02 02:48:42,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:42,164 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1267 transitions. [2023-04-02 02:48:42,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:42,164 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1267 transitions. [2023-04-02 02:48:42,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-04-02 02:48:42,169 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:42,169 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:42,181 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 02:48:42,379 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,SelfDestructingSolverStorable7 [2023-04-02 02:48:42,379 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:42,380 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:42,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1741746786, now seen corresponding path program 1 times [2023-04-02 02:48:42,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:42,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729502979] [2023-04-02 02:48:42,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:42,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:42,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:48:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:42,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:42,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 02:48:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:48:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 02:48:42,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:48:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:48:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:42,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:42,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729502979] [2023-04-02 02:48:42,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729502979] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:42,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689727655] [2023-04-02 02:48:42,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:42,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:42,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:42,946 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 02:48:42,955 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 02:48:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 2690 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:43,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:43,414 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-02 02:48:43,414 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:43,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689727655] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:43,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:43,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-04-02 02:48:43,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136668103] [2023-04-02 02:48:43,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:43,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:43,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:43,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:43,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:43,417 INFO L87 Difference]: Start difference. First operand 796 states and 1267 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:48:43,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:43,471 INFO L93 Difference]: Finished difference Result 1499 states and 2396 transitions. [2023-04-02 02:48:43,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:48:43,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 172 [2023-04-02 02:48:43,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:43,476 INFO L225 Difference]: With dead ends: 1499 [2023-04-02 02:48:43,476 INFO L226 Difference]: Without dead ends: 796 [2023-04-02 02:48:43,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:43,480 INFO L413 NwaCegarLoop]: 1069 mSDtfsCounter, 10 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:43,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3196 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:43,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2023-04-02 02:48:43,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 796. [2023-04-02 02:48:43,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 600 states have (on average 1.6466666666666667) internal successors, (988), 620 states have internal predecessors, (988), 139 states have call successors, (139), 57 states have call predecessors, (139), 56 states have return successors, (137), 130 states have call predecessors, (137), 133 states have call successors, (137) [2023-04-02 02:48:43,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1264 transitions. [2023-04-02 02:48:43,507 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1264 transitions. Word has length 172 [2023-04-02 02:48:43,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:43,508 INFO L495 AbstractCegarLoop]: Abstraction has 796 states and 1264 transitions. [2023-04-02 02:48:43,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:48:43,509 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1264 transitions. [2023-04-02 02:48:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 02:48:43,513 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:43,514 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:43,523 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 02:48:43,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:43,724 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:43,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:43,724 INFO L85 PathProgramCache]: Analyzing trace with hash 2106627523, now seen corresponding path program 1 times [2023-04-02 02:48:43,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:43,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729589380] [2023-04-02 02:48:43,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:43,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:44,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:44,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:44,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:48:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:48:44,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:48:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:48:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:48:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:48:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,248 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-04-02 02:48:44,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729589380] [2023-04-02 02:48:44,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729589380] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:44,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76229665] [2023-04-02 02:48:44,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:44,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:44,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:44,253 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 02:48:44,257 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 02:48:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:48:44,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:44,805 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:44,806 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:44,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76229665] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:44,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:44,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-04-02 02:48:44,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281243440] [2023-04-02 02:48:44,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:44,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:48:44,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:44,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:48:44,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:44,808 INFO L87 Difference]: Start difference. First operand 796 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:45,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:45,366 INFO L93 Difference]: Finished difference Result 1451 states and 2341 transitions. [2023-04-02 02:48:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:48:45,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 174 [2023-04-02 02:48:45,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:45,372 INFO L225 Difference]: With dead ends: 1451 [2023-04-02 02:48:45,372 INFO L226 Difference]: Without dead ends: 804 [2023-04-02 02:48:45,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:45,376 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 996 mSDsluCounter, 1611 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:45,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 2661 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 02:48:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2023-04-02 02:48:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2023-04-02 02:48:45,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 607 states have (on average 1.6474464579901154) internal successors, (1000), 627 states have internal predecessors, (1000), 139 states have call successors, (139), 58 states have call predecessors, (139), 57 states have return successors, (138), 130 states have call predecessors, (138), 133 states have call successors, (138) [2023-04-02 02:48:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1277 transitions. [2023-04-02 02:48:45,401 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1277 transitions. Word has length 174 [2023-04-02 02:48:45,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:45,402 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1277 transitions. [2023-04-02 02:48:45,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:45,402 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1277 transitions. [2023-04-02 02:48:45,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 02:48:45,406 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:45,407 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:45,421 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 02:48:45,617 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,SelfDestructingSolverStorable9 [2023-04-02 02:48:45,617 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:45,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash 414925531, now seen corresponding path program 1 times [2023-04-02 02:48:45,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:45,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936147982] [2023-04-02 02:48:45,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:45,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:45,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:45,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:45,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:45,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:48:46,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:48:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:48:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:48:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:48:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:48:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:48:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,072 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:48:46,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:46,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936147982] [2023-04-02 02:48:46,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936147982] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:46,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276899777] [2023-04-02 02:48:46,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:46,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:46,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:46,074 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 02:48:46,103 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 02:48:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 2693 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:48:46,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:46,652 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:46,652 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:46,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276899777] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:46,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:46,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-04-02 02:48:46,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309817885] [2023-04-02 02:48:46,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:46,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:48:46,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:46,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:48:46,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:46,654 INFO L87 Difference]: Start difference. First operand 804 states and 1277 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:47,182 INFO L93 Difference]: Finished difference Result 1467 states and 2364 transitions. [2023-04-02 02:48:47,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:48:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 176 [2023-04-02 02:48:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:47,188 INFO L225 Difference]: With dead ends: 1467 [2023-04-02 02:48:47,188 INFO L226 Difference]: Without dead ends: 812 [2023-04-02 02:48:47,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:47,192 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 1003 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:47,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 2660 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 02:48:47,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2023-04-02 02:48:47,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 812. [2023-04-02 02:48:47,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 812 states, 614 states have (on average 1.6482084690553747) internal successors, (1012), 634 states have internal predecessors, (1012), 139 states have call successors, (139), 59 states have call predecessors, (139), 58 states have return successors, (139), 130 states have call predecessors, (139), 133 states have call successors, (139) [2023-04-02 02:48:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 812 states to 812 states and 1290 transitions. [2023-04-02 02:48:47,219 INFO L78 Accepts]: Start accepts. Automaton has 812 states and 1290 transitions. Word has length 176 [2023-04-02 02:48:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:47,219 INFO L495 AbstractCegarLoop]: Abstraction has 812 states and 1290 transitions. [2023-04-02 02:48:47,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:47,220 INFO L276 IsEmpty]: Start isEmpty. Operand 812 states and 1290 transitions. [2023-04-02 02:48:47,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-02 02:48:47,225 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:47,225 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:47,239 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 02:48:47,439 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,SelfDestructingSolverStorable10 [2023-04-02 02:48:47,439 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:47,439 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:47,440 INFO L85 PathProgramCache]: Analyzing trace with hash -626239293, now seen corresponding path program 1 times [2023-04-02 02:48:47,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:47,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912358998] [2023-04-02 02:48:47,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:47,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:47,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:47,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:47,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:47,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:48:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:48:47,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:47,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:48:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2023-04-02 02:48:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 02:48:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:48:47,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 02:48:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:48:47,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:47,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912358998] [2023-04-02 02:48:47,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912358998] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:47,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814435546] [2023-04-02 02:48:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:47,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:47,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:47,890 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 02:48:47,918 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 02:48:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:48:48,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:48,460 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:48,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:48,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814435546] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:48,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:48,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-04-02 02:48:48,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739069964] [2023-04-02 02:48:48,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:48,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:48:48,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:48,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:48:48,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:48,463 INFO L87 Difference]: Start difference. First operand 812 states and 1290 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:48,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:48,997 INFO L93 Difference]: Finished difference Result 1483 states and 2387 transitions. [2023-04-02 02:48:48,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:48:48,997 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 178 [2023-04-02 02:48:48,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:49,002 INFO L225 Difference]: With dead ends: 1483 [2023-04-02 02:48:49,003 INFO L226 Difference]: Without dead ends: 820 [2023-04-02 02:48:49,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:49,006 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 983 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1001 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:49,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1001 Valid, 2662 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 02:48:49,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2023-04-02 02:48:49,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2023-04-02 02:48:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 621 states have (on average 1.6489533011272142) internal successors, (1024), 641 states have internal predecessors, (1024), 139 states have call successors, (139), 60 states have call predecessors, (139), 59 states have return successors, (140), 130 states have call predecessors, (140), 133 states have call successors, (140) [2023-04-02 02:48:49,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1303 transitions. [2023-04-02 02:48:49,030 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1303 transitions. Word has length 178 [2023-04-02 02:48:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:49,030 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1303 transitions. [2023-04-02 02:48:49,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:49,030 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1303 transitions. [2023-04-02 02:48:49,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-04-02 02:48:49,034 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:49,035 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:49,047 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 02:48:49,243 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,SelfDestructingSolverStorable11 [2023-04-02 02:48:49,244 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:49,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:49,244 INFO L85 PathProgramCache]: Analyzing trace with hash 303112019, now seen corresponding path program 1 times [2023-04-02 02:48:49,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:49,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842453570] [2023-04-02 02:48:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:49,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:49,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:49,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:49,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:49,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:48:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 02:48:49,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:48:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 02:48:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 02:48:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 02:48:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 02:48:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:48:49,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:49,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842453570] [2023-04-02 02:48:49,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842453570] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:49,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554197659] [2023-04-02 02:48:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:49,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:49,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:49,757 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 02:48:49,759 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 02:48:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:48:50,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:50,329 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-02 02:48:50,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:50,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554197659] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:50,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:50,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-04-02 02:48:50,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391736001] [2023-04-02 02:48:50,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:50,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:48:50,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:50,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:48:50,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:48:50,332 INFO L87 Difference]: Start difference. First operand 820 states and 1303 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:50,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:50,871 INFO L93 Difference]: Finished difference Result 1499 states and 2410 transitions. [2023-04-02 02:48:50,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:48:50,872 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 180 [2023-04-02 02:48:50,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:50,877 INFO L225 Difference]: With dead ends: 1499 [2023-04-02 02:48:50,877 INFO L226 Difference]: Without dead ends: 828 [2023-04-02 02:48:50,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:50,881 INFO L413 NwaCegarLoop]: 1050 mSDtfsCounter, 978 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:50,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 2662 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-02 02:48:50,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 828 states. [2023-04-02 02:48:50,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 828 to 828. [2023-04-02 02:48:50,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 828 states, 628 states have (on average 1.6496815286624205) internal successors, (1036), 648 states have internal predecessors, (1036), 139 states have call successors, (139), 61 states have call predecessors, (139), 60 states have return successors, (141), 130 states have call predecessors, (141), 133 states have call successors, (141) [2023-04-02 02:48:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 828 states to 828 states and 1316 transitions. [2023-04-02 02:48:50,908 INFO L78 Accepts]: Start accepts. Automaton has 828 states and 1316 transitions. Word has length 180 [2023-04-02 02:48:50,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:50,910 INFO L495 AbstractCegarLoop]: Abstraction has 828 states and 1316 transitions. [2023-04-02 02:48:50,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-02 02:48:50,910 INFO L276 IsEmpty]: Start isEmpty. Operand 828 states and 1316 transitions. [2023-04-02 02:48:50,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 02:48:50,915 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:50,915 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:50,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:51,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-02 02:48:51,124 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:51,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:51,124 INFO L85 PathProgramCache]: Analyzing trace with hash -924010045, now seen corresponding path program 1 times [2023-04-02 02:48:51,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:51,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030258342] [2023-04-02 02:48:51,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:51,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:51,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:51,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:48:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:48:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:48:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:48:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:48:51,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,694 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:48:51,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030258342] [2023-04-02 02:48:51,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030258342] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:51,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781132339] [2023-04-02 02:48:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:51,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:51,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:51,697 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:51,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-02 02:48:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 2699 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:48:52,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:48:52,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:52,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781132339] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:52,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:52,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 9 [2023-04-02 02:48:52,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716044545] [2023-04-02 02:48:52,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:52,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:52,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:52,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:48:52,106 INFO L87 Difference]: Start difference. First operand 828 states and 1316 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:52,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:52,156 INFO L93 Difference]: Finished difference Result 1615 states and 2588 transitions. [2023-04-02 02:48:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:52,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 182 [2023-04-02 02:48:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:52,161 INFO L225 Difference]: With dead ends: 1615 [2023-04-02 02:48:52,161 INFO L226 Difference]: Without dead ends: 805 [2023-04-02 02:48:52,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:52,165 INFO L413 NwaCegarLoop]: 1068 mSDtfsCounter, 13 mSDsluCounter, 2127 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:52,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3195 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:52,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2023-04-02 02:48:52,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 805. [2023-04-02 02:48:52,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 805 states, 609 states have (on average 1.6403940886699508) internal successors, (999), 627 states have internal predecessors, (999), 137 states have call successors, (137), 61 states have call predecessors, (137), 58 states have return successors, (137), 128 states have call predecessors, (137), 131 states have call successors, (137) [2023-04-02 02:48:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 805 states to 805 states and 1273 transitions. [2023-04-02 02:48:52,189 INFO L78 Accepts]: Start accepts. Automaton has 805 states and 1273 transitions. Word has length 182 [2023-04-02 02:48:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:52,190 INFO L495 AbstractCegarLoop]: Abstraction has 805 states and 1273 transitions. [2023-04-02 02:48:52,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-02 02:48:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 805 states and 1273 transitions. [2023-04-02 02:48:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-04-02 02:48:52,194 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:52,194 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:52,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:52,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:52,404 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:52,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:52,404 INFO L85 PathProgramCache]: Analyzing trace with hash 734120680, now seen corresponding path program 1 times [2023-04-02 02:48:52,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:52,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414382943] [2023-04-02 02:48:52,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:52,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:52,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:52,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:52,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:52,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:52,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:48:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:52,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:48:52,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 02:48:52,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 02:48:52,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 02:48:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:52,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 02:48:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,000 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:53,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414382943] [2023-04-02 02:48:53,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414382943] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:53,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600987499] [2023-04-02 02:48:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:53,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:53,005 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:53,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-02 02:48:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:53,490 INFO L262 TraceCheckSpWp]: Trace formula consists of 2698 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:53,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:53,572 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 02:48:53,572 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:53,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600987499] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:53,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:53,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2023-04-02 02:48:53,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145195891] [2023-04-02 02:48:53,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:53,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:53,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:53,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:53,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:53,574 INFO L87 Difference]: Start difference. First operand 805 states and 1273 transitions. Second operand has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:53,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:53,662 INFO L93 Difference]: Finished difference Result 1564 states and 2481 transitions. [2023-04-02 02:48:53,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:53,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 180 [2023-04-02 02:48:53,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:53,668 INFO L225 Difference]: With dead ends: 1564 [2023-04-02 02:48:53,668 INFO L226 Difference]: Without dead ends: 807 [2023-04-02 02:48:53,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:48:53,672 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 105 mSDsluCounter, 5211 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6278 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:53,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6278 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:53,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2023-04-02 02:48:53,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 799. [2023-04-02 02:48:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 603 states have (on average 1.6334991708126037) internal successors, (985), 621 states have internal predecessors, (985), 137 states have call successors, (137), 61 states have call predecessors, (137), 58 states have return successors, (137), 128 states have call predecessors, (137), 131 states have call successors, (137) [2023-04-02 02:48:53,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1259 transitions. [2023-04-02 02:48:53,699 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1259 transitions. Word has length 180 [2023-04-02 02:48:53,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:53,699 INFO L495 AbstractCegarLoop]: Abstraction has 799 states and 1259 transitions. [2023-04-02 02:48:53,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1259 transitions. [2023-04-02 02:48:53,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-04-02 02:48:53,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:53,704 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:53,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:53,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-02 02:48:53,914 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:53,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 197229094, now seen corresponding path program 1 times [2023-04-02 02:48:53,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:53,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377745257] [2023-04-02 02:48:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:53,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:54,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:48:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:48:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:54,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-02 02:48:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-04-02 02:48:54,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-04-02 02:48:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-04-02 02:48:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:54,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:54,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377745257] [2023-04-02 02:48:54,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377745257] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:54,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006658079] [2023-04-02 02:48:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:54,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:54,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:54,454 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:54,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-04-02 02:48:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:54,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 2694 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:54,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:54,968 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 02:48:54,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:54,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006658079] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:54,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:54,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2023-04-02 02:48:54,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937628451] [2023-04-02 02:48:54,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:54,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:54,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:54,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:54,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:54,971 INFO L87 Difference]: Start difference. First operand 799 states and 1259 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:55,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:55,152 INFO L93 Difference]: Finished difference Result 1558 states and 2468 transitions. [2023-04-02 02:48:55,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:55,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 180 [2023-04-02 02:48:55,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:55,157 INFO L225 Difference]: With dead ends: 1558 [2023-04-02 02:48:55,158 INFO L226 Difference]: Without dead ends: 808 [2023-04-02 02:48:55,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:48:55,161 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 92 mSDsluCounter, 7287 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 8344 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:55,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 8344 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:55,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2023-04-02 02:48:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 801. [2023-04-02 02:48:55,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 604 states have (on average 1.6324503311258278) internal successors, (986), 623 states have internal predecessors, (986), 137 states have call successors, (137), 61 states have call predecessors, (137), 59 states have return successors, (140), 128 states have call predecessors, (140), 131 states have call successors, (140) [2023-04-02 02:48:55,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1263 transitions. [2023-04-02 02:48:55,184 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1263 transitions. Word has length 180 [2023-04-02 02:48:55,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:55,185 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1263 transitions. [2023-04-02 02:48:55,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 8 states have internal predecessors, (100), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1263 transitions. [2023-04-02 02:48:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-04-02 02:48:55,189 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:55,189 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:55,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:55,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-04-02 02:48:55,399 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:55,399 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:55,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1431366391, now seen corresponding path program 1 times [2023-04-02 02:48:55,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:55,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178088805] [2023-04-02 02:48:55,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:55,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:55,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:55,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:55,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:55,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:55,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:48:55,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:55,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:55,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:48:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:48:55,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 02:48:55,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:55,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2023-04-02 02:48:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:48:55,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:48:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:48:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:55,959 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:55,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178088805] [2023-04-02 02:48:55,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178088805] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:55,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169018873] [2023-04-02 02:48:55,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:55,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:55,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:55,961 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:55,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-04-02 02:48:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:56,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 2695 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:56,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:56,498 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 02:48:56,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:56,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169018873] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:56,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:56,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2023-04-02 02:48:56,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932384238] [2023-04-02 02:48:56,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:56,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:56,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:56,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:56,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:56,520 INFO L87 Difference]: Start difference. First operand 801 states and 1263 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:56,674 INFO L93 Difference]: Finished difference Result 1563 states and 2481 transitions. [2023-04-02 02:48:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:56,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 181 [2023-04-02 02:48:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:56,680 INFO L225 Difference]: With dead ends: 1563 [2023-04-02 02:48:56,680 INFO L226 Difference]: Without dead ends: 811 [2023-04-02 02:48:56,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:48:56,683 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 103 mSDsluCounter, 7275 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 8332 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:56,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 8332 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:56,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2023-04-02 02:48:56,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 801. [2023-04-02 02:48:56,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 604 states have (on average 1.6324503311258278) internal successors, (986), 623 states have internal predecessors, (986), 137 states have call successors, (137), 61 states have call predecessors, (137), 59 states have return successors, (140), 128 states have call predecessors, (140), 131 states have call successors, (140) [2023-04-02 02:48:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1263 transitions. [2023-04-02 02:48:56,730 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1263 transitions. Word has length 181 [2023-04-02 02:48:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1263 transitions. [2023-04-02 02:48:56,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:56,731 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1263 transitions. [2023-04-02 02:48:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 02:48:56,735 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:56,736 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:56,748 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:56,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-02 02:48:56,946 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:56,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash 860209675, now seen corresponding path program 1 times [2023-04-02 02:48:56,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:56,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207487119] [2023-04-02 02:48:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:56,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:56,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:57,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:57,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:48:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:48:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:48:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:48:57,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:48:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:57,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:57,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207487119] [2023-04-02 02:48:57,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207487119] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:57,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912995058] [2023-04-02 02:48:57,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:57,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:57,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:57,508 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:57,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-04-02 02:48:57,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:57,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 2696 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:57,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:57,990 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 02:48:57,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:57,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912995058] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:57,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:57,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2023-04-02 02:48:57,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601062133] [2023-04-02 02:48:57,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:57,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:57,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:57,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:57,992 INFO L87 Difference]: Start difference. First operand 801 states and 1263 transitions. Second operand has 9 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:58,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:58,149 INFO L93 Difference]: Finished difference Result 1563 states and 2481 transitions. [2023-04-02 02:48:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:58,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 182 [2023-04-02 02:48:58,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:58,155 INFO L225 Difference]: With dead ends: 1563 [2023-04-02 02:48:58,155 INFO L226 Difference]: Without dead ends: 811 [2023-04-02 02:48:58,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:48:58,158 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 114 mSDsluCounter, 7263 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8320 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:58,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8320 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:58,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2023-04-02 02:48:58,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 801. [2023-04-02 02:48:58,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 604 states have (on average 1.6324503311258278) internal successors, (986), 623 states have internal predecessors, (986), 137 states have call successors, (137), 61 states have call predecessors, (137), 59 states have return successors, (140), 128 states have call predecessors, (140), 131 states have call successors, (140) [2023-04-02 02:48:58,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1263 transitions. [2023-04-02 02:48:58,201 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1263 transitions. Word has length 182 [2023-04-02 02:48:58,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:58,202 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1263 transitions. [2023-04-02 02:48:58,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 4 states have call successors, (33), 2 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:58,202 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1263 transitions. [2023-04-02 02:48:58,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-02 02:48:58,207 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:58,207 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:58,219 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-04-02 02:48:58,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 02:48:58,417 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:58,417 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:58,417 INFO L85 PathProgramCache]: Analyzing trace with hash 159513404, now seen corresponding path program 1 times [2023-04-02 02:48:58,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:58,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605532560] [2023-04-02 02:48:58,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:58,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:58,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:48:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:48:58,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:48:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 02:48:58,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:48:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 02:48:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:48:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:48:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:48:58,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:58,929 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:48:58,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:58,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605532560] [2023-04-02 02:48:58,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605532560] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:58,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684528532] [2023-04-02 02:48:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:58,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:58,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:58,931 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:48:58,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-04-02 02:48:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 2697 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 02:48:59,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:59,362 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 02:48:59,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:59,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684528532] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:59,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:59,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 15 [2023-04-02 02:48:59,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167072037] [2023-04-02 02:48:59,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:59,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:59,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:59,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:59,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:59,364 INFO L87 Difference]: Start difference. First operand 801 states and 1263 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:59,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:59,470 INFO L93 Difference]: Finished difference Result 1560 states and 2474 transitions. [2023-04-02 02:48:59,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:59,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 183 [2023-04-02 02:48:59,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:59,476 INFO L225 Difference]: With dead ends: 1560 [2023-04-02 02:48:59,476 INFO L226 Difference]: Without dead ends: 800 [2023-04-02 02:48:59,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:48:59,479 INFO L413 NwaCegarLoop]: 1070 mSDtfsCounter, 118 mSDsluCounter, 5205 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6275 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:59,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6275 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:59,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2023-04-02 02:48:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 794. [2023-04-02 02:48:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 597 states have (on average 1.6247906197654942) internal successors, (970), 616 states have internal predecessors, (970), 137 states have call successors, (137), 61 states have call predecessors, (137), 59 states have return successors, (140), 128 states have call predecessors, (140), 131 states have call successors, (140) [2023-04-02 02:48:59,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1247 transitions. [2023-04-02 02:48:59,502 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1247 transitions. Word has length 183 [2023-04-02 02:48:59,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:59,502 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1247 transitions. [2023-04-02 02:48:59,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 4 states have call successors, (33), 2 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:48:59,503 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1247 transitions. [2023-04-02 02:48:59,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:48:59,506 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:59,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:48:59,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-04-02 02:48:59,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:59,717 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:59,717 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:59,717 INFO L85 PathProgramCache]: Analyzing trace with hash 310124165, now seen corresponding path program 1 times [2023-04-02 02:48:59,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:59,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008371450] [2023-04-02 02:48:59,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:59,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:00,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:49:00,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:49:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:49:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:49:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 02:49:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:49:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:49:00,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:00,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008371450] [2023-04-02 02:49:00,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008371450] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:00,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:00,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 02:49:00,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532843088] [2023-04-02 02:49:00,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:00,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:49:00,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:49:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:49:00,130 INFO L87 Difference]: Start difference. First operand 794 states and 1247 transitions. Second operand has 9 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 02:49:07,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:07,287 INFO L93 Difference]: Finished difference Result 1816 states and 3008 transitions. [2023-04-02 02:49:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 02:49:07,288 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 184 [2023-04-02 02:49:07,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:07,294 INFO L225 Difference]: With dead ends: 1816 [2023-04-02 02:49:07,294 INFO L226 Difference]: Without dead ends: 1065 [2023-04-02 02:49:07,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=198, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:49:07,297 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1294 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 4550 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1366 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 5026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 4550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:07,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1366 Valid, 522 Invalid, 5026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 4550 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-04-02 02:49:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1065 states. [2023-04-02 02:49:07,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1065 to 778. [2023-04-02 02:49:07,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 778 states, 585 states have (on average 1.6256410256410256) internal successors, (951), 602 states have internal predecessors, (951), 135 states have call successors, (135), 61 states have call predecessors, (135), 57 states have return successors, (135), 126 states have call predecessors, (135), 129 states have call successors, (135) [2023-04-02 02:49:07,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 778 states and 1221 transitions. [2023-04-02 02:49:07,482 INFO L78 Accepts]: Start accepts. Automaton has 778 states and 1221 transitions. Word has length 184 [2023-04-02 02:49:07,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:07,482 INFO L495 AbstractCegarLoop]: Abstraction has 778 states and 1221 transitions. [2023-04-02 02:49:07,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.5) internal successors, (100), 4 states have internal predecessors, (100), 3 states have call successors, (32), 7 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 02:49:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 778 states and 1221 transitions. [2023-04-02 02:49:07,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 02:49:07,485 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:07,486 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:07,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 02:49:07,486 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:07,486 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:07,486 INFO L85 PathProgramCache]: Analyzing trace with hash -321131950, now seen corresponding path program 1 times [2023-04-02 02:49:07,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:07,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375523854] [2023-04-02 02:49:07,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:07,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:07,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:07,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:49:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:49:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:08,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:49:08,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:49:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:49:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:08,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:49:08,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:08,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375523854] [2023-04-02 02:49:08,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375523854] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:08,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:08,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-04-02 02:49:08,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129336159] [2023-04-02 02:49:08,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:08,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-02 02:49:08,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:08,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-02 02:49:08,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:49:08,104 INFO L87 Difference]: Start difference. First operand 778 states and 1221 transitions. Second operand has 13 states, 11 states have (on average 9.0) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 3 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:15,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:15,728 INFO L93 Difference]: Finished difference Result 1762 states and 2927 transitions. [2023-04-02 02:49:15,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-04-02 02:49:15,729 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 9.0) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 3 states have call predecessors, (26), 5 states have call successors, (26) Word has length 182 [2023-04-02 02:49:15,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:15,735 INFO L225 Difference]: With dead ends: 1762 [2023-04-02 02:49:15,735 INFO L226 Difference]: Without dead ends: 1075 [2023-04-02 02:49:15,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2023-04-02 02:49:15,737 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 3363 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 8909 mSolverCounterSat, 1188 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3436 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 10097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1188 IncrementalHoareTripleChecker+Valid, 8909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:15,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3436 Valid, 1015 Invalid, 10097 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1188 Valid, 8909 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-02 02:49:15,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-04-02 02:49:15,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 781. [2023-04-02 02:49:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 586 states have (on average 1.6245733788395904) internal successors, (952), 605 states have internal predecessors, (952), 136 states have call successors, (136), 61 states have call predecessors, (136), 58 states have return successors, (138), 126 states have call predecessors, (138), 130 states have call successors, (138) [2023-04-02 02:49:15,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1226 transitions. [2023-04-02 02:49:15,961 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1226 transitions. Word has length 182 [2023-04-02 02:49:15,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:15,961 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1226 transitions. [2023-04-02 02:49:15,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 9.0) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 3 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:15,961 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1226 transitions. [2023-04-02 02:49:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-02 02:49:15,964 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:15,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:15,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 02:49:15,966 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:15,966 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:15,966 INFO L85 PathProgramCache]: Analyzing trace with hash 921502795, now seen corresponding path program 1 times [2023-04-02 02:49:15,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:15,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923420537] [2023-04-02 02:49:15,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:15,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:16,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:16,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:49:16,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:49:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:16,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 02:49:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2023-04-02 02:49:16,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:49:16,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:49:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:49:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,528 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:49:16,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:16,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923420537] [2023-04-02 02:49:16,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923420537] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:16,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:16,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:49:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456173516] [2023-04-02 02:49:16,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:16,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:49:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:16,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:49:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:16,530 INFO L87 Difference]: Start difference. First operand 781 states and 1226 transitions. Second operand has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:25,875 INFO L93 Difference]: Finished difference Result 1810 states and 3005 transitions. [2023-04-02 02:49:25,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-04-02 02:49:25,877 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 183 [2023-04-02 02:49:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:25,883 INFO L225 Difference]: With dead ends: 1810 [2023-04-02 02:49:25,883 INFO L226 Difference]: Without dead ends: 1081 [2023-04-02 02:49:25,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=347, Invalid=1135, Unknown=0, NotChecked=0, Total=1482 [2023-04-02 02:49:25,886 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 2057 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 10571 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2129 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 11264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 10571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:25,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2129 Valid, 1132 Invalid, 11264 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [693 Valid, 10571 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2023-04-02 02:49:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-04-02 02:49:26,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 761. [2023-04-02 02:49:26,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 761 states, 566 states have (on average 1.6113074204946995) internal successors, (912), 585 states have internal predecessors, (912), 136 states have call successors, (136), 61 states have call predecessors, (136), 58 states have return successors, (138), 126 states have call predecessors, (138), 130 states have call successors, (138) [2023-04-02 02:49:26,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1186 transitions. [2023-04-02 02:49:26,071 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1186 transitions. Word has length 183 [2023-04-02 02:49:26,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:26,071 INFO L495 AbstractCegarLoop]: Abstraction has 761 states and 1186 transitions. [2023-04-02 02:49:26,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.166666666666666) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (33), 7 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:26,071 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1186 transitions. [2023-04-02 02:49:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:49:26,074 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:26,075 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:26,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 02:49:26,075 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:26,075 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:26,075 INFO L85 PathProgramCache]: Analyzing trace with hash 856826670, now seen corresponding path program 1 times [2023-04-02 02:49:26,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:26,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441882730] [2023-04-02 02:49:26,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:26,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:26,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:26,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:26,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:26,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:49:26,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:26,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:49:26,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:26,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:49:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:26,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-04-02 02:49:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:49:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:49:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:49:26,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:26,671 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:49:26,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:26,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441882730] [2023-04-02 02:49:26,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441882730] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:26,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:26,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:49:26,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554977623] [2023-04-02 02:49:26,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:26,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:49:26,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:26,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:49:26,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:49:26,673 INFO L87 Difference]: Start difference. First operand 761 states and 1186 transitions. Second operand has 10 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (33), 7 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:33,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:33,467 INFO L93 Difference]: Finished difference Result 1749 states and 2905 transitions. [2023-04-02 02:49:33,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-04-02 02:49:33,467 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (33), 7 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) Word has length 184 [2023-04-02 02:49:33,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:33,473 INFO L225 Difference]: With dead ends: 1749 [2023-04-02 02:49:33,473 INFO L226 Difference]: Without dead ends: 1059 [2023-04-02 02:49:33,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=126, Invalid=336, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:49:33,476 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 1350 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 5680 mSolverCounterSat, 491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 6171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 491 IncrementalHoareTripleChecker+Valid, 5680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:33,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 639 Invalid, 6171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [491 Valid, 5680 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 02:49:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2023-04-02 02:49:33,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 764. [2023-04-02 02:49:33,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 567 states have (on average 1.6102292768959436) internal successors, (913), 588 states have internal predecessors, (913), 137 states have call successors, (137), 61 states have call predecessors, (137), 59 states have return successors, (141), 126 states have call predecessors, (141), 131 states have call successors, (141) [2023-04-02 02:49:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 1191 transitions. [2023-04-02 02:49:33,673 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 1191 transitions. Word has length 184 [2023-04-02 02:49:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:33,673 INFO L495 AbstractCegarLoop]: Abstraction has 764 states and 1191 transitions. [2023-04-02 02:49:33,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.0) internal successors, (99), 5 states have internal predecessors, (99), 4 states have call successors, (33), 7 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 1191 transitions. [2023-04-02 02:49:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-04-02 02:49:33,676 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:33,677 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:33,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 02:49:33,677 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:33,677 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:33,677 INFO L85 PathProgramCache]: Analyzing trace with hash -1039925708, now seen corresponding path program 1 times [2023-04-02 02:49:33,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:33,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807935955] [2023-04-02 02:49:33,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:33,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:34,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:34,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:34,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:49:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:49:34,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-04-02 02:49:34,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:34,712 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:34,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:34,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807935955] [2023-04-02 02:49:34,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807935955] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:34,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036613] [2023-04-02 02:49:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:34,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:34,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:34,717 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:34,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-04-02 02:49:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:35,213 INFO L262 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-02 02:49:35,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:49:35,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:35,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036613] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:35,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:35,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2023-04-02 02:49:35,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450003760] [2023-04-02 02:49:35,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:35,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:49:35,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:35,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:49:35,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:49:35,405 INFO L87 Difference]: Start difference. First operand 764 states and 1191 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 02:49:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:36,099 INFO L93 Difference]: Finished difference Result 2144 states and 3433 transitions. [2023-04-02 02:49:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:49:36,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) Word has length 185 [2023-04-02 02:49:36,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:36,108 INFO L225 Difference]: With dead ends: 2144 [2023-04-02 02:49:36,108 INFO L226 Difference]: Without dead ends: 1457 [2023-04-02 02:49:36,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 239 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:49:36,111 INFO L413 NwaCegarLoop]: 1185 mSDtfsCounter, 970 mSDsluCounter, 3124 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:36,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 4309 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 315 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:49:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-04-02 02:49:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1445. [2023-04-02 02:49:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1084 states have (on average 1.6236162361623616) internal successors, (1760), 1125 states have internal predecessors, (1760), 252 states have call successors, (252), 106 states have call predecessors, (252), 108 states have return successors, (282), 237 states have call predecessors, (282), 245 states have call successors, (282) [2023-04-02 02:49:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 2294 transitions. [2023-04-02 02:49:36,533 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 2294 transitions. Word has length 185 [2023-04-02 02:49:36,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:36,533 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 2294 transitions. [2023-04-02 02:49:36,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (25), 2 states have call predecessors, (25), 3 states have call successors, (25) [2023-04-02 02:49:36,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 2294 transitions. [2023-04-02 02:49:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2023-04-02 02:49:36,536 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:36,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:36,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:36,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-04-02 02:49:36,746 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:36,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:36,746 INFO L85 PathProgramCache]: Analyzing trace with hash -381735725, now seen corresponding path program 1 times [2023-04-02 02:49:36,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178716372] [2023-04-02 02:49:36,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:36,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:37,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:37,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:49:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:49:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-04-02 02:49:37,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:37,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178716372] [2023-04-02 02:49:37,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178716372] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:37,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650991814] [2023-04-02 02:49:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:37,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:37,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:37,870 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:37,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-04-02 02:49:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:38,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 2720 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:49:38,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:38,373 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-02 02:49:38,373 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:38,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650991814] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:38,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:38,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:49:38,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507896720] [2023-04-02 02:49:38,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:38,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:49:38,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:38,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:49:38,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:49:38,375 INFO L87 Difference]: Start difference. First operand 1445 states and 2294 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:49:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:38,720 INFO L93 Difference]: Finished difference Result 2825 states and 4536 transitions. [2023-04-02 02:49:38,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:49:38,720 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 190 [2023-04-02 02:49:38,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:38,726 INFO L225 Difference]: With dead ends: 2825 [2023-04-02 02:49:38,727 INFO L226 Difference]: Without dead ends: 1457 [2023-04-02 02:49:38,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:49:38,730 INFO L413 NwaCegarLoop]: 1072 mSDtfsCounter, 86 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 3127 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:38,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 3127 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:49:38,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2023-04-02 02:49:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1457. [2023-04-02 02:49:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1094 states have (on average 1.6197440585009142) internal successors, (1772), 1135 states have internal predecessors, (1772), 252 states have call successors, (252), 108 states have call predecessors, (252), 110 states have return successors, (282), 237 states have call predecessors, (282), 245 states have call successors, (282) [2023-04-02 02:49:39,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2306 transitions. [2023-04-02 02:49:39,132 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2306 transitions. Word has length 190 [2023-04-02 02:49:39,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:39,132 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 2306 transitions. [2023-04-02 02:49:39,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:49:39,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2306 transitions. [2023-04-02 02:49:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:49:39,136 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:39,136 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:39,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:39,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-04-02 02:49:39,346 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:39,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:39,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1545546652, now seen corresponding path program 1 times [2023-04-02 02:49:39,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:39,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899198861] [2023-04-02 02:49:39,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:39,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:40,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:40,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:40,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:40,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:49:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:49:40,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:49:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:40,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:40,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899198861] [2023-04-02 02:49:40,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899198861] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:40,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472672368] [2023-04-02 02:49:40,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:40,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:40,406 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:40,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-04-02 02:49:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:40,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:49:40,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:41,176 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:49:41,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:41,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472672368] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:41,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:41,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-04-02 02:49:41,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458130583] [2023-04-02 02:49:41,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:41,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:49:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:49:41,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:49:41,178 INFO L87 Difference]: Start difference. First operand 1457 states and 2306 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:45,932 INFO L93 Difference]: Finished difference Result 5007 states and 8121 transitions. [2023-04-02 02:49:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:49:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 192 [2023-04-02 02:49:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:45,951 INFO L225 Difference]: With dead ends: 5007 [2023-04-02 02:49:45,951 INFO L226 Difference]: Without dead ends: 3627 [2023-04-02 02:49:45,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 247 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:49:45,960 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 3242 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 7202 mSolverCounterSat, 844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3356 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 8046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 7202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:45,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3356 Valid, 592 Invalid, 8046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 7202 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 02:49:45,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3627 states. [2023-04-02 02:49:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3627 to 3536. [2023-04-02 02:49:46,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 2662 states have (on average 1.6141998497370398) internal successors, (4297), 2758 states have internal predecessors, (4297), 602 states have call successors, (602), 260 states have call predecessors, (602), 271 states have return successors, (759), 577 states have call predecessors, (759), 592 states have call successors, (759) [2023-04-02 02:49:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5658 transitions. [2023-04-02 02:49:46,714 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5658 transitions. Word has length 192 [2023-04-02 02:49:46,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:46,715 INFO L495 AbstractCegarLoop]: Abstraction has 3536 states and 5658 transitions. [2023-04-02 02:49:46,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5658 transitions. [2023-04-02 02:49:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:49:46,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:46,742 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:46,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:46,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-04-02 02:49:46,951 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:46,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:46,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1095907936, now seen corresponding path program 1 times [2023-04-02 02:49:46,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:46,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949494098] [2023-04-02 02:49:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:46,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:47,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:47,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:47,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:47,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:47,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:47,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:49:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:49:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:49:47,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:47,938 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:47,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:47,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949494098] [2023-04-02 02:49:47,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949494098] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:47,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612616253] [2023-04-02 02:49:47,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:47,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:47,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:47,943 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:47,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-04-02 02:49:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:48,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 2725 conjuncts, 6 conjunts are in the unsatisfiable core [2023-04-02 02:49:48,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:49:48,429 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:48,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612616253] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:48,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:48,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [16] total 20 [2023-04-02 02:49:48,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722498836] [2023-04-02 02:49:48,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:48,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:49:48,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:48,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:49:48,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:49:48,431 INFO L87 Difference]: Start difference. First operand 3536 states and 5658 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:49:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:49,884 INFO L93 Difference]: Finished difference Result 7961 states and 12860 transitions. [2023-04-02 02:49:49,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:49:49,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 192 [2023-04-02 02:49:49,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:49,907 INFO L225 Difference]: With dead ends: 7961 [2023-04-02 02:49:49,908 INFO L226 Difference]: Without dead ends: 5005 [2023-04-02 02:49:49,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2023-04-02 02:49:49,918 INFO L413 NwaCegarLoop]: 2038 mSDtfsCounter, 996 mSDsluCounter, 6936 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:49,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 8974 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:49:49,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2023-04-02 02:49:51,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 4982. [2023-04-02 02:49:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4982 states, 3763 states have (on average 1.616529364868456) internal successors, (6083), 3891 states have internal predecessors, (6083), 838 states have call successors, (838), 363 states have call predecessors, (838), 380 states have return successors, (1086), 811 states have call predecessors, (1086), 826 states have call successors, (1086) [2023-04-02 02:49:51,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4982 states to 4982 states and 8007 transitions. [2023-04-02 02:49:51,208 INFO L78 Accepts]: Start accepts. Automaton has 4982 states and 8007 transitions. Word has length 192 [2023-04-02 02:49:51,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:51,209 INFO L495 AbstractCegarLoop]: Abstraction has 4982 states and 8007 transitions. [2023-04-02 02:49:51,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (33), 3 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:49:51,209 INFO L276 IsEmpty]: Start isEmpty. Operand 4982 states and 8007 transitions. [2023-04-02 02:49:51,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2023-04-02 02:49:51,213 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:51,213 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:51,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-04-02 02:49:51,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:51,429 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:51,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash 804327176, now seen corresponding path program 1 times [2023-04-02 02:49:51,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:51,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630304442] [2023-04-02 02:49:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:51,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:52,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:52,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:52,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:52,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:49:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,442 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:49:52,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:52,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630304442] [2023-04-02 02:49:52,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630304442] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:52,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386670100] [2023-04-02 02:49:52,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:52,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:52,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:52,444 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:52,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-04-02 02:49:52,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:52,909 INFO L262 TraceCheckSpWp]: Trace formula consists of 2726 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:49:52,914 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:53,174 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-04-02 02:49:53,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:53,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386670100] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:53,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:53,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-04-02 02:49:53,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755499572] [2023-04-02 02:49:53,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:53,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:49:53,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:53,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:49:53,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:49:53,176 INFO L87 Difference]: Start difference. First operand 4982 states and 8007 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:55,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:55,385 INFO L93 Difference]: Finished difference Result 11716 states and 19022 transitions. [2023-04-02 02:49:55,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 02:49:55,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 193 [2023-04-02 02:49:55,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:55,415 INFO L225 Difference]: With dead ends: 11716 [2023-04-02 02:49:55,415 INFO L226 Difference]: Without dead ends: 6802 [2023-04-02 02:49:55,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 246 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2023-04-02 02:49:55,430 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 2402 mSDsluCounter, 4577 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 1053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:55,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 6058 Invalid, 1053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-02 02:49:55,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6802 states. [2023-04-02 02:49:57,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6802 to 6777. [2023-04-02 02:49:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6777 states, 5208 states have (on average 1.6063748079877112) internal successors, (8366), 5366 states have internal predecessors, (8366), 1013 states have call successors, (1013), 523 states have call predecessors, (1013), 555 states have return successors, (1553), 971 states have call predecessors, (1553), 993 states have call successors, (1553) [2023-04-02 02:49:57,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6777 states to 6777 states and 10932 transitions. [2023-04-02 02:49:57,064 INFO L78 Accepts]: Start accepts. Automaton has 6777 states and 10932 transitions. Word has length 193 [2023-04-02 02:49:57,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:57,064 INFO L495 AbstractCegarLoop]: Abstraction has 6777 states and 10932 transitions. [2023-04-02 02:49:57,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 4 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:57,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6777 states and 10932 transitions. [2023-04-02 02:49:57,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-02 02:49:57,068 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:57,068 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:49:57,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-04-02 02:49:57,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-04-02 02:49:57,278 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:57,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:57,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1549247, now seen corresponding path program 1 times [2023-04-02 02:49:57,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:57,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630949018] [2023-04-02 02:49:57,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:57,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:57,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:58,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:58,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:49:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:49:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:49:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:49:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-02 02:49:58,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2023-04-02 02:49:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:49:58,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630949018] [2023-04-02 02:49:58,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630949018] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:49:58,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81825533] [2023-04-02 02:49:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:58,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:49:58,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:49:58,217 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:49:58,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-04-02 02:49:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:58,594 INFO L262 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:49:58,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:49:58,833 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:49:58,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:49:58,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81825533] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:58,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:49:58,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-04-02 02:49:58,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581830056] [2023-04-02 02:49:58,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:58,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:49:58,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:58,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:49:58,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:49:58,836 INFO L87 Difference]: Start difference. First operand 6777 states and 10932 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:04,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:04,249 INFO L93 Difference]: Finished difference Result 12795 states and 20688 transitions. [2023-04-02 02:50:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:50:04,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 196 [2023-04-02 02:50:04,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:04,281 INFO L225 Difference]: With dead ends: 12795 [2023-04-02 02:50:04,281 INFO L226 Difference]: Without dead ends: 6982 [2023-04-02 02:50:04,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 251 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:50:04,302 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 3424 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 7008 mSolverCounterSat, 861 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3538 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 7869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 861 IncrementalHoareTripleChecker+Valid, 7008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:04,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3538 Valid, 582 Invalid, 7869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [861 Valid, 7008 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-04-02 02:50:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6982 states. [2023-04-02 02:50:05,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6982 to 6771. [2023-04-02 02:50:05,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6771 states, 5202 states have (on average 1.6047673971549403) internal successors, (8348), 5360 states have internal predecessors, (8348), 1013 states have call successors, (1013), 523 states have call predecessors, (1013), 555 states have return successors, (1553), 971 states have call predecessors, (1553), 993 states have call successors, (1553) [2023-04-02 02:50:05,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6771 states to 6771 states and 10914 transitions. [2023-04-02 02:50:05,757 INFO L78 Accepts]: Start accepts. Automaton has 6771 states and 10914 transitions. Word has length 196 [2023-04-02 02:50:05,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:05,757 INFO L495 AbstractCegarLoop]: Abstraction has 6771 states and 10914 transitions. [2023-04-02 02:50:05,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 5 states have call successors, (33), 5 states have call predecessors, (33), 4 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:05,757 INFO L276 IsEmpty]: Start isEmpty. Operand 6771 states and 10914 transitions. [2023-04-02 02:50:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-02 02:50:05,761 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:05,761 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:05,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:05,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-04-02 02:50:05,962 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:05,962 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash -140145609, now seen corresponding path program 1 times [2023-04-02 02:50:05,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:05,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87872887] [2023-04-02 02:50:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:05,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:05,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:06,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:06,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:06,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:50:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:06,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:50:06,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:50:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:50:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-04-02 02:50:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:06,777 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-02 02:50:06,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:06,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87872887] [2023-04-02 02:50:06,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87872887] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:06,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052326516] [2023-04-02 02:50:06,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:06,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:06,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:06,779 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:06,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-04-02 02:50:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:07,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 2734 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:50:07,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:07,190 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-04-02 02:50:07,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:07,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052326516] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:07,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:07,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:50:07,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797889289] [2023-04-02 02:50:07,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:07,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:50:07,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:07,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:50:07,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:50:07,192 INFO L87 Difference]: Start difference. First operand 6771 states and 10914 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:50:08,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:08,605 INFO L93 Difference]: Finished difference Result 13494 states and 22224 transitions. [2023-04-02 02:50:08,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:50:08,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 198 [2023-04-02 02:50:08,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:08,636 INFO L225 Difference]: With dead ends: 13494 [2023-04-02 02:50:08,636 INFO L226 Difference]: Without dead ends: 6756 [2023-04-02 02:50:08,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:50:08,659 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 93 mSDsluCounter, 2050 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:08,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 3121 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:50:08,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6756 states. [2023-04-02 02:50:10,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6756 to 6756. [2023-04-02 02:50:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 5187 states have (on average 1.5978407557354926) internal successors, (8288), 5345 states have internal predecessors, (8288), 1013 states have call successors, (1013), 523 states have call predecessors, (1013), 555 states have return successors, (1553), 971 states have call predecessors, (1553), 993 states have call successors, (1553) [2023-04-02 02:50:10,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 10854 transitions. [2023-04-02 02:50:10,244 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 10854 transitions. Word has length 198 [2023-04-02 02:50:10,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:10,244 INFO L495 AbstractCegarLoop]: Abstraction has 6756 states and 10854 transitions. [2023-04-02 02:50:10,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:50:10,244 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 10854 transitions. [2023-04-02 02:50:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-02 02:50:10,247 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:10,247 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:10,255 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2023-04-02 02:50:10,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:10,448 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:10,448 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:10,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1047076266, now seen corresponding path program 1 times [2023-04-02 02:50:10,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:10,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321424800] [2023-04-02 02:50:10,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:10,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:10,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:50:11,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:11,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:11,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:50:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:50:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:50:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 02:50:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,213 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:11,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:11,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321424800] [2023-04-02 02:50:11,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321424800] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:11,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [326349827] [2023-04-02 02:50:11,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:11,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:11,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:11,217 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:11,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-04-02 02:50:11,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:11,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 2738 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:50:11,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:11,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:11,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [326349827] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:11,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:11,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-04-02 02:50:11,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152144130] [2023-04-02 02:50:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:11,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:11,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:11,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:11,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:50:11,880 INFO L87 Difference]: Start difference. First operand 6756 states and 10854 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:18,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:18,095 INFO L93 Difference]: Finished difference Result 19280 states and 32414 transitions. [2023-04-02 02:50:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 02:50:18,095 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 199 [2023-04-02 02:50:18,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:18,155 INFO L225 Difference]: With dead ends: 19280 [2023-04-02 02:50:18,155 INFO L226 Difference]: Without dead ends: 12610 [2023-04-02 02:50:18,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 254 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702 [2023-04-02 02:50:18,183 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 5735 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 4250 mSolverCounterSat, 1632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5846 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 5882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1632 IncrementalHoareTripleChecker+Valid, 4250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:18,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5846 Valid, 368 Invalid, 5882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1632 Valid, 4250 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-04-02 02:50:18,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12610 states. [2023-04-02 02:50:20,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12610 to 11972. [2023-04-02 02:50:20,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11972 states, 9203 states have (on average 1.570140171683147) internal successors, (14450), 9461 states have internal predecessors, (14450), 1778 states have call successors, (1778), 942 states have call predecessors, (1778), 990 states have return successors, (2729), 1724 states have call predecessors, (2729), 1754 states have call successors, (2729) [2023-04-02 02:50:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11972 states to 11972 states and 18957 transitions. [2023-04-02 02:50:20,826 INFO L78 Accepts]: Start accepts. Automaton has 11972 states and 18957 transitions. Word has length 199 [2023-04-02 02:50:20,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:20,826 INFO L495 AbstractCegarLoop]: Abstraction has 11972 states and 18957 transitions. [2023-04-02 02:50:20,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:20,827 INFO L276 IsEmpty]: Start isEmpty. Operand 11972 states and 18957 transitions. [2023-04-02 02:50:20,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-04-02 02:50:20,830 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:20,830 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:20,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:21,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:21,031 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:21,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:21,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1713259668, now seen corresponding path program 1 times [2023-04-02 02:50:21,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:21,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158802217] [2023-04-02 02:50:21,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:21,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:21,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:21,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:21,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:21,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:21,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:21,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:21,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:21,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:50:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:50:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:21,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:50:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:50:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:50:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:21,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:21,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158802217] [2023-04-02 02:50:21,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158802217] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:21,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137493491] [2023-04-02 02:50:21,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:21,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:21,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:21,901 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:21,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-04-02 02:50:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:22,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 2741 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:50:22,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:22,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:22,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137493491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:22,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:22,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [16] total 21 [2023-04-02 02:50:22,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243085638] [2023-04-02 02:50:22,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:22,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:50:22,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:22,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:50:22,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:50:22,586 INFO L87 Difference]: Start difference. First operand 11972 states and 18957 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:29,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:29,136 INFO L93 Difference]: Finished difference Result 23202 states and 36943 transitions. [2023-04-02 02:50:29,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:50:29,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) Word has length 200 [2023-04-02 02:50:29,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:29,195 INFO L225 Difference]: With dead ends: 23202 [2023-04-02 02:50:29,196 INFO L226 Difference]: Without dead ends: 12276 [2023-04-02 02:50:29,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 255 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:50:29,232 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 3098 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 7475 mSolverCounterSat, 774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 8249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 774 IncrementalHoareTripleChecker+Valid, 7475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:29,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 600 Invalid, 8249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [774 Valid, 7475 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-04-02 02:50:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12276 states. [2023-04-02 02:50:31,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12276 to 11954. [2023-04-02 02:50:31,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11954 states, 9185 states have (on average 1.5673380511703865) internal successors, (14396), 9443 states have internal predecessors, (14396), 1778 states have call successors, (1778), 942 states have call predecessors, (1778), 990 states have return successors, (2729), 1724 states have call predecessors, (2729), 1754 states have call successors, (2729) [2023-04-02 02:50:32,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11954 states to 11954 states and 18903 transitions. [2023-04-02 02:50:32,011 INFO L78 Accepts]: Start accepts. Automaton has 11954 states and 18903 transitions. Word has length 200 [2023-04-02 02:50:32,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:32,011 INFO L495 AbstractCegarLoop]: Abstraction has 11954 states and 18903 transitions. [2023-04-02 02:50:32,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 5 states have call successors, (33), 5 states have call predecessors, (33), 5 states have return successors, (26), 4 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:50:32,012 INFO L276 IsEmpty]: Start isEmpty. Operand 11954 states and 18903 transitions. [2023-04-02 02:50:32,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2023-04-02 02:50:32,015 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:32,015 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:32,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:32,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:32,218 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:32,218 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:32,218 INFO L85 PathProgramCache]: Analyzing trace with hash 525966430, now seen corresponding path program 1 times [2023-04-02 02:50:32,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:32,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123010083] [2023-04-02 02:50:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:32,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:32,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:32,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:33,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:50:33,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:50:33,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:33,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:50:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:50:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2023-04-02 02:50:33,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,092 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:33,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123010083] [2023-04-02 02:50:33,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123010083] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:33,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651625754] [2023-04-02 02:50:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:33,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:33,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:33,093 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:33,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-04-02 02:50:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:33,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:50:33,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:33,527 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:33,527 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:50:33,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651625754] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:33,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:50:33,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2023-04-02 02:50:33,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691726540] [2023-04-02 02:50:33,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:33,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:50:33,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:33,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:50:33,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:50:33,529 INFO L87 Difference]: Start difference. First operand 11954 states and 18903 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:50:36,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:36,010 INFO L93 Difference]: Finished difference Result 23999 states and 38399 transitions. [2023-04-02 02:50:36,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:50:36,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) Word has length 202 [2023-04-02 02:50:36,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:36,065 INFO L225 Difference]: With dead ends: 23999 [2023-04-02 02:50:36,066 INFO L226 Difference]: Without dead ends: 12138 [2023-04-02 02:50:36,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 257 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:50:36,110 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 2 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:36,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4309 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:50:36,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12138 states. [2023-04-02 02:50:38,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12138 to 12022. [2023-04-02 02:50:38,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12022 states, 9236 states have (on average 1.5642052836725855) internal successors, (14447), 9494 states have internal predecessors, (14447), 1778 states have call successors, (1778), 942 states have call predecessors, (1778), 1007 states have return successors, (2746), 1741 states have call predecessors, (2746), 1754 states have call successors, (2746) [2023-04-02 02:50:38,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12022 states to 12022 states and 18971 transitions. [2023-04-02 02:50:38,964 INFO L78 Accepts]: Start accepts. Automaton has 12022 states and 18971 transitions. Word has length 202 [2023-04-02 02:50:38,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:38,964 INFO L495 AbstractCegarLoop]: Abstraction has 12022 states and 18971 transitions. [2023-04-02 02:50:38,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 2 states have call successors, (33), 2 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 2 states have call successors, (26) [2023-04-02 02:50:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 12022 states and 18971 transitions. [2023-04-02 02:50:38,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-04-02 02:50:38,968 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:38,968 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-04-02 02:50:38,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-04-02 02:50:39,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:39,173 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:39,173 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:39,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1522493692, now seen corresponding path program 1 times [2023-04-02 02:50:39,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:39,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862035188] [2023-04-02 02:50:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:39,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:39,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:39,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:39,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:50:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:50:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:50:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:50:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2023-04-02 02:50:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2023-04-02 02:50:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:39,996 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:50:39,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862035188] [2023-04-02 02:50:39,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862035188] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:50:39,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091890150] [2023-04-02 02:50:39,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:39,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:50:39,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:50:39,997 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:50:40,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-04-02 02:50:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:40,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 2747 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-02 02:50:40,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:50:40,688 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:50:40,688 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 02:50:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-04-02 02:50:41,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091890150] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 02:50:41,135 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 02:50:41,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 9] total 28 [2023-04-02 02:50:41,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188854495] [2023-04-02 02:50:41,135 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 02:50:41,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-04-02 02:50:41,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:41,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-04-02 02:50:41,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=653, Unknown=0, NotChecked=0, Total=756 [2023-04-02 02:50:41,137 INFO L87 Difference]: Start difference. First operand 12022 states and 18971 transitions. Second operand has 28 states, 27 states have (on average 11.037037037037036) internal successors, (298), 21 states have internal predecessors, (298), 11 states have call successors, (91), 13 states have call predecessors, (91), 13 states have return successors, (75), 13 states have call predecessors, (75), 11 states have call successors, (75)