/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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:48:21,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:48:21,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:48:22,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:48:22,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:48:22,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:48:22,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:48:22,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:48:22,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:48:22,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:48:22,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:48:22,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:48:22,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:48:22,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:48:22,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:48:22,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:48:22,037 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:48:22,038 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:48:22,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:48:22,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:48:22,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:48:22,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:48:22,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:48:22,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:48:22,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:48:22,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:48:22,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:48:22,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:48:22,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:48:22,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:48:22,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:48:22,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:48:22,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:48:22,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:48:22,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:48:22,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:48:22,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:48:22,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:48:22,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:48:22,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:48:22,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:48:22,065 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 02:48:22,085 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:48:22,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:48:22,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:48:22,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:48:22,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:48:22,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:48:22,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:48:22,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:48:22,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:48:22,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:22,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:48:22,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:48:22,090 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:48:22,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:48:22,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:48:22,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:48:22,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:48:22,294 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:48:22,295 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:48:22,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-04-02 02:48:23,417 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:48:23,677 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:48:23,677 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product30.cil.c [2023-04-02 02:48:23,695 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38ee1dd58/c75762a654624fc2af034ba067c54c84/FLAGceab4d0e1 [2023-04-02 02:48:23,707 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/38ee1dd58/c75762a654624fc2af034ba067c54c84 [2023-04-02 02:48:23,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:48:23,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:48:23,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:23,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:48:23,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:48:23,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:23" (1/1) ... [2023-04-02 02:48:23,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cbf87ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:23, skipping insertion in model container [2023-04-02 02:48:23,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:48:23" (1/1) ... [2023-04-02 02:48:23,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:48:23,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:48:24,141 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_product30.cil.c[61393,61406] [2023-04-02 02:48:24,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:24,178 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:48:24,268 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_product30.cil.c[61393,61406] [2023-04-02 02:48:24,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:48:24,300 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:48:24,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24 WrapperNode [2023-04-02 02:48:24,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:48:24,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:48:24,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:48:24,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:48:24,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:48:24,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:48:24,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:48:24,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:48:24,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (1/1) ... [2023-04-02 02:48:24,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:48:24,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:24,485 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 02:48:24,504 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 02:48:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:48:24,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:48:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:48:24,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:48:24,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:48:24,519 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:48:24,520 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:48:24,521 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:48:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:48:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:48:24,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__twothirdsfull [2023-04-02 02:48:24,523 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:48:24,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:48:24,525 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:48:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:48:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:48:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:48:24,526 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__1 [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification13_spec__2 [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:48:24,527 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:48:24,528 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:48:24,529 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:48:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:48:24,530 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:48:24,532 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:48:24,537 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__twothirdsfull [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:48:24,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:48:24,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:48:24,735 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:48:24,737 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:48:25,818 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:48:25,834 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:48:25,835 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:48:25,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:25 BoogieIcfgContainer [2023-04-02 02:48:25,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:48:25,843 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:48:25,843 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:48:25,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:48:25,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:48:23" (1/3) ... [2023-04-02 02:48:25,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2394b16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:25, skipping insertion in model container [2023-04-02 02:48:25,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:48:24" (2/3) ... [2023-04-02 02:48:25,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2394b16f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:48:25, skipping insertion in model container [2023-04-02 02:48:25,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:48:25" (3/3) ... [2023-04-02 02:48:25,849 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product30.cil.c [2023-04-02 02:48:25,863 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:48:25,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:48:25,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:48:25,946 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;@76de1d77, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:48:25,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:48:25,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 823 states, 577 states have (on average 1.6360485268630849) internal successors, (944), 603 states have internal predecessors, (944), 179 states have call successors, (179), 55 states have call predecessors, (179), 55 states have return successors, (179), 172 states have call predecessors, (179), 179 states have call successors, (179) [2023-04-02 02:48:25,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-02 02:48:25,973 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:25,974 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 02:48:25,974 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:25,978 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:25,978 INFO L85 PathProgramCache]: Analyzing trace with hash -588551390, now seen corresponding path program 1 times [2023-04-02 02:48:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:25,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942764966] [2023-04-02 02:48:25,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:25,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:26,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:26,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-04-02 02:48:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:27,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-04-02 02:48:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:27,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:27,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:27,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:27,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942764966] [2023-04-02 02:48:27,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942764966] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:27,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158215177] [2023-04-02 02:48:27,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:27,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:27,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:27,178 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 02:48:27,212 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 02:48:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:27,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 2551 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:27,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:27,771 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:27,771 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:27,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158215177] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:27,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:27,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 13 [2023-04-02 02:48:27,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397936824] [2023-04-02 02:48:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:27,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:27,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:27,810 INFO L87 Difference]: Start difference. First operand has 823 states, 577 states have (on average 1.6360485268630849) internal successors, (944), 603 states have internal predecessors, (944), 179 states have call successors, (179), 55 states have call predecessors, (179), 55 states have return successors, (179), 172 states have call predecessors, (179), 179 states have call successors, (179) Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:27,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:27,964 INFO L93 Difference]: Finished difference Result 1347 states and 2176 transitions. [2023-04-02 02:48:27,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:27,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 113 [2023-04-02 02:48:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:27,997 INFO L225 Difference]: With dead ends: 1347 [2023-04-02 02:48:27,997 INFO L226 Difference]: Without dead ends: 679 [2023-04-02 02:48:28,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:28,008 INFO L413 NwaCegarLoop]: 1061 mSDtfsCounter, 26 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3174 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 02:48:28,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3174 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2023-04-02 02:48:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2023-04-02 02:48:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 502 states have (on average 1.6454183266932272) internal successors, (826), 520 states have internal predecessors, (826), 128 states have call successors, (128), 53 states have call predecessors, (128), 48 states have return successors, (122), 118 states have call predecessors, (122), 122 states have call successors, (122) [2023-04-02 02:48:28,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 1076 transitions. [2023-04-02 02:48:28,119 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 1076 transitions. Word has length 113 [2023-04-02 02:48:28,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:28,120 INFO L495 AbstractCegarLoop]: Abstraction has 679 states and 1076 transitions. [2023-04-02 02:48:28,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:28,120 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 1076 transitions. [2023-04-02 02:48:28,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-04-02 02:48:28,127 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:28,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:28,140 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 02:48:28,340 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 02:48:28,341 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:28,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:28,342 INFO L85 PathProgramCache]: Analyzing trace with hash -623334522, now seen corresponding path program 1 times [2023-04-02 02:48:28,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:28,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863199981] [2023-04-02 02:48:28,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:28,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:28,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:48:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:48:29,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-04-02 02:48:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:48:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:48:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:29,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:29,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863199981] [2023-04-02 02:48:29,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863199981] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:29,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322556909] [2023-04-02 02:48:29,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:29,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:29,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:29,067 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 02:48:29,068 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 02:48:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:29,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:29,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:29,537 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:29,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:29,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322556909] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:29,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:29,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:29,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452475759] [2023-04-02 02:48:29,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:29,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:29,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:29,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:29,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:29,539 INFO L87 Difference]: Start difference. First operand 679 states and 1076 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:29,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:29,688 INFO L93 Difference]: Finished difference Result 1369 states and 2199 transitions. [2023-04-02 02:48:29,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:29,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 115 [2023-04-02 02:48:29,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:29,693 INFO L225 Difference]: With dead ends: 1369 [2023-04-02 02:48:29,693 INFO L226 Difference]: Without dead ends: 718 [2023-04-02 02:48:29,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:29,696 INFO L413 NwaCegarLoop]: 1009 mSDtfsCounter, 137 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2986 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 02:48:29,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2986 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:29,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2023-04-02 02:48:29,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 718. [2023-04-02 02:48:29,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 718 states, 539 states have (on average 1.6660482374768089) internal successors, (898), 557 states have internal predecessors, (898), 129 states have call successors, (129), 54 states have call predecessors, (129), 49 states have return successors, (123), 119 states have call predecessors, (123), 123 states have call successors, (123) [2023-04-02 02:48:29,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 718 states to 718 states and 1150 transitions. [2023-04-02 02:48:29,718 INFO L78 Accepts]: Start accepts. Automaton has 718 states and 1150 transitions. Word has length 115 [2023-04-02 02:48:29,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:29,718 INFO L495 AbstractCegarLoop]: Abstraction has 718 states and 1150 transitions. [2023-04-02 02:48:29,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:29,719 INFO L276 IsEmpty]: Start isEmpty. Operand 718 states and 1150 transitions. [2023-04-02 02:48:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-02 02:48:29,720 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:29,720 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:29,731 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 02:48:29,928 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 02:48:29,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:29,929 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 71714448, now seen corresponding path program 1 times [2023-04-02 02:48:29,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:29,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775513869] [2023-04-02 02:48:29,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:29,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:30,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:30,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:30,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-04-02 02:48:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:30,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:30,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:48:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:48:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:48:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:48:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:48:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,470 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-04-02 02:48:30,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:30,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775513869] [2023-04-02 02:48:30,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775513869] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:30,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743543595] [2023-04-02 02:48:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:30,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:30,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:30,491 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 02:48:30,512 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 02:48:30,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:30,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 2555 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:30,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:30,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:30,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743543595] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:30,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:30,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 13 [2023-04-02 02:48:30,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144611081] [2023-04-02 02:48:30,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:30,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:30,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:30,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:30,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:30,943 INFO L87 Difference]: Start difference. First operand 718 states and 1150 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:31,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:31,058 INFO L93 Difference]: Finished difference Result 1422 states and 2290 transitions. [2023-04-02 02:48:31,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:31,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 117 [2023-04-02 02:48:31,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:31,067 INFO L225 Difference]: With dead ends: 1422 [2023-04-02 02:48:31,067 INFO L226 Difference]: Without dead ends: 732 [2023-04-02 02:48:31,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:31,072 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 83 mSDsluCounter, 5152 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 6203 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 02:48:31,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 6203 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:31,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2023-04-02 02:48:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 725. [2023-04-02 02:48:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 542 states have (on average 1.6623616236162362) internal successors, (901), 562 states have internal predecessors, (901), 131 states have call successors, (131), 54 states have call predecessors, (131), 51 states have return successors, (129), 121 states have call predecessors, (129), 125 states have call successors, (129) [2023-04-02 02:48:31,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1161 transitions. [2023-04-02 02:48:31,113 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1161 transitions. Word has length 117 [2023-04-02 02:48:31,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:31,113 INFO L495 AbstractCegarLoop]: Abstraction has 725 states and 1161 transitions. [2023-04-02 02:48:31,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:31,113 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1161 transitions. [2023-04-02 02:48:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 02:48:31,115 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:31,115 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:31,137 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 02:48:31,323 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 02:48:31,323 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:31,323 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1604946670, now seen corresponding path program 1 times [2023-04-02 02:48:31,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:31,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090639158] [2023-04-02 02:48:31,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:31,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:31,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:31,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:31,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:31,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:31,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:48:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:48:31,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:31,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:31,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:48:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 02:48:31,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 02:48:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:31,726 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:31,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090639158] [2023-04-02 02:48:31,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090639158] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:31,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999516831] [2023-04-02 02:48:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:31,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:31,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:31,732 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 02:48:31,733 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 02:48:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:32,141 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:32,171 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:32,171 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:32,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999516831] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:32,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:32,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430182219] [2023-04-02 02:48:32,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:32,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:32,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:32,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:32,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:32,174 INFO L87 Difference]: Start difference. First operand 725 states and 1161 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:32,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:32,237 INFO L93 Difference]: Finished difference Result 1435 states and 2310 transitions. [2023-04-02 02:48:32,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:32,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2023-04-02 02:48:32,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:32,240 INFO L225 Difference]: With dead ends: 1435 [2023-04-02 02:48:32,240 INFO L226 Difference]: Without dead ends: 736 [2023-04-02 02:48:32,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:32,242 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 20 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 3133 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 02:48:32,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 3133 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:32,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2023-04-02 02:48:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 734. [2023-04-02 02:48:32,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 550 states have (on average 1.6545454545454545) internal successors, (910), 570 states have internal predecessors, (910), 131 states have call successors, (131), 55 states have call predecessors, (131), 52 states have return successors, (128), 121 states have call predecessors, (128), 125 states have call successors, (128) [2023-04-02 02:48:32,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1169 transitions. [2023-04-02 02:48:32,260 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1169 transitions. Word has length 118 [2023-04-02 02:48:32,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:32,260 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1169 transitions. [2023-04-02 02:48:32,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-04-02 02:48:32,260 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1169 transitions. [2023-04-02 02:48:32,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-04-02 02:48:32,262 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:32,262 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 02:48:32,278 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 02:48:32,471 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 02:48:32,471 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:32,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:32,471 INFO L85 PathProgramCache]: Analyzing trace with hash -936968238, now seen corresponding path program 1 times [2023-04-02 02:48:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:32,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260686352] [2023-04-02 02:48:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:32,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:32,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:48:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:32,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:48:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:48:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 02:48:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 02:48:32,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:32,958 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:32,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260686352] [2023-04-02 02:48:32,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260686352] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:32,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453652785] [2023-04-02 02:48:32,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:32,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:32,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:32,959 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 02:48:32,961 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 02:48:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:33,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:33,376 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:33,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453652785] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:33,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:33,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 14 [2023-04-02 02:48:33,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716385858] [2023-04-02 02:48:33,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:33,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:33,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:33,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:33,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:33,380 INFO L87 Difference]: Start difference. First operand 734 states and 1169 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:33,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:33,470 INFO L93 Difference]: Finished difference Result 1439 states and 2304 transitions. [2023-04-02 02:48:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:33,471 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 118 [2023-04-02 02:48:33,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:33,474 INFO L225 Difference]: With dead ends: 1439 [2023-04-02 02:48:33,474 INFO L226 Difference]: Without dead ends: 746 [2023-04-02 02:48:33,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:48:33,477 INFO L413 NwaCegarLoop]: 1051 mSDtfsCounter, 94 mSDsluCounter, 5140 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6191 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:33,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6191 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-04-02 02:48:33,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 734. [2023-04-02 02:48:33,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 550 states have (on average 1.6545454545454545) internal successors, (910), 570 states have internal predecessors, (910), 131 states have call successors, (131), 55 states have call predecessors, (131), 52 states have return successors, (128), 121 states have call predecessors, (128), 125 states have call successors, (128) [2023-04-02 02:48:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1169 transitions. [2023-04-02 02:48:33,494 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1169 transitions. Word has length 118 [2023-04-02 02:48:33,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:33,494 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1169 transitions. [2023-04-02 02:48:33,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:33,494 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1169 transitions. [2023-04-02 02:48:33,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-04-02 02:48:33,496 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:33,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:33,508 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 02:48:33,704 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 02:48:33,705 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:33,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:33,705 INFO L85 PathProgramCache]: Analyzing trace with hash 314141465, now seen corresponding path program 1 times [2023-04-02 02:48:33,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:33,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773462361] [2023-04-02 02:48:33,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:33,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:33,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:33,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:33,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:33,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:34,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:48:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:48:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:48:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:48:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:48:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,094 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:34,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:34,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773462361] [2023-04-02 02:48:34,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773462361] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:34,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860999621] [2023-04-02 02:48:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:34,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:34,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:34,095 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 02:48:34,097 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 02:48:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:34,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:34,477 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 02:48:34,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:34,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860999621] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:34,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:34,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:34,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506453918] [2023-04-02 02:48:34,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:34,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:34,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:34,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:34,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:34,499 INFO L87 Difference]: Start difference. First operand 734 states and 1169 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:34,551 INFO L93 Difference]: Finished difference Result 1415 states and 2271 transitions. [2023-04-02 02:48:34,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:34,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 121 [2023-04-02 02:48:34,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:34,554 INFO L225 Difference]: With dead ends: 1415 [2023-04-02 02:48:34,554 INFO L226 Difference]: Without dead ends: 734 [2023-04-02 02:48:34,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:34,556 INFO L413 NwaCegarLoop]: 1046 mSDtfsCounter, 35 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 3131 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 02:48:34,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 3131 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:34,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 734 states. [2023-04-02 02:48:34,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 734 to 734. [2023-04-02 02:48:34,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 550 states have (on average 1.6454545454545455) internal successors, (905), 570 states have internal predecessors, (905), 131 states have call successors, (131), 55 states have call predecessors, (131), 52 states have return successors, (128), 121 states have call predecessors, (128), 125 states have call successors, (128) [2023-04-02 02:48:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 1164 transitions. [2023-04-02 02:48:34,572 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 1164 transitions. Word has length 121 [2023-04-02 02:48:34,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:34,573 INFO L495 AbstractCegarLoop]: Abstraction has 734 states and 1164 transitions. [2023-04-02 02:48:34,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 1164 transitions. [2023-04-02 02:48:34,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-02 02:48:34,574 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:34,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:34,599 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 02:48:34,783 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 02:48:34,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:34,783 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash 194174347, now seen corresponding path program 1 times [2023-04-02 02:48:34,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:34,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291072398] [2023-04-02 02:48:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:34,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:35,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:35,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:35,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:48:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:48:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:35,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:48:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:48:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291072398] [2023-04-02 02:48:35,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291072398] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:35,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995359751] [2023-04-02 02:48:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:35,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:35,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:35,205 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 02:48:35,261 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 02:48:35,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:35,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 2559 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:35,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:35,676 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:35,676 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:35,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995359751] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:35,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:35,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:35,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099003050] [2023-04-02 02:48:35,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:35,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:35,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:35,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:35,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:35,678 INFO L87 Difference]: Start difference. First operand 734 states and 1164 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:35,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:35,823 INFO L93 Difference]: Finished difference Result 1411 states and 2262 transitions. [2023-04-02 02:48:35,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:35,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 122 [2023-04-02 02:48:35,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:35,830 INFO L225 Difference]: With dead ends: 1411 [2023-04-02 02:48:35,830 INFO L226 Difference]: Without dead ends: 776 [2023-04-02 02:48:35,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:35,833 INFO L413 NwaCegarLoop]: 998 mSDtfsCounter, 208 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2975 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 02:48:35,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2975 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:35,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2023-04-02 02:48:35,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 773. [2023-04-02 02:48:35,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 587 states have (on average 1.6643952299829643) internal successors, (977), 607 states have internal predecessors, (977), 132 states have call successors, (132), 56 states have call predecessors, (132), 53 states have return successors, (128), 122 states have call predecessors, (128), 126 states have call successors, (128) [2023-04-02 02:48:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1237 transitions. [2023-04-02 02:48:35,853 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1237 transitions. Word has length 122 [2023-04-02 02:48:35,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:35,854 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1237 transitions. [2023-04-02 02:48:35,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-02 02:48:35,854 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1237 transitions. [2023-04-02 02:48:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-04-02 02:48:35,856 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:35,856 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:35,887 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 02:48:36,065 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 02:48:36,066 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:36,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:36,066 INFO L85 PathProgramCache]: Analyzing trace with hash 108026725, now seen corresponding path program 1 times [2023-04-02 02:48:36,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:36,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979086976] [2023-04-02 02:48:36,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:36,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:36,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:48:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:48:36,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:48:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:48:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:48:36,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,473 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:36,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:36,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979086976] [2023-04-02 02:48:36,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979086976] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:36,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441707484] [2023-04-02 02:48:36,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:36,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:36,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:36,474 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 02:48:36,477 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 02:48:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:36,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 2560 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:36,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:36,943 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:48:36,943 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:36,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441707484] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:36,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:36,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2023-04-02 02:48:36,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910974189] [2023-04-02 02:48:36,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:36,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:36,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:36,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:36,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:48:36,945 INFO L87 Difference]: Start difference. First operand 773 states and 1237 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:37,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:37,024 INFO L93 Difference]: Finished difference Result 1425 states and 2278 transitions. [2023-04-02 02:48:37,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:37,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 123 [2023-04-02 02:48:37,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:37,029 INFO L225 Difference]: With dead ends: 1425 [2023-04-02 02:48:37,029 INFO L226 Difference]: Without dead ends: 790 [2023-04-02 02:48:37,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:37,032 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 82 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 6192 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:37,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 6192 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:37,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2023-04-02 02:48:37,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 780. [2023-04-02 02:48:37,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 590 states have (on average 1.6610169491525424) internal successors, (980), 612 states have internal predecessors, (980), 134 states have call successors, (134), 56 states have call predecessors, (134), 55 states have return successors, (132), 124 states have call predecessors, (132), 128 states have call successors, (132) [2023-04-02 02:48:37,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1246 transitions. [2023-04-02 02:48:37,051 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1246 transitions. Word has length 123 [2023-04-02 02:48:37,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:37,051 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1246 transitions. [2023-04-02 02:48:37,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2023-04-02 02:48:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1246 transitions. [2023-04-02 02:48:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-04-02 02:48:37,053 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:37,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:37,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-04-02 02:48:37,261 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 02:48:37,262 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:37,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:37,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1648564133, now seen corresponding path program 1 times [2023-04-02 02:48:37,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:37,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567263603] [2023-04-02 02:48:37,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:37,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:37,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:37,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:37,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:37,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:37,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:48:37,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:37,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:37,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:48:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:48:37,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:48:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:37,612 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:37,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567263603] [2023-04-02 02:48:37,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567263603] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:37,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972050171] [2023-04-02 02:48:37,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:37,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:37,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:37,631 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 02:48:37,632 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 02:48:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:48:38,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:38,072 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-02 02:48:38,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:38,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972050171] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:38,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:38,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-04-02 02:48:38,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70555966] [2023-04-02 02:48:38,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:38,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:38,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:38,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:38,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:38,074 INFO L87 Difference]: Start difference. First operand 780 states and 1246 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:38,131 INFO L93 Difference]: Finished difference Result 1467 states and 2354 transitions. [2023-04-02 02:48:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 02:48:38,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 124 [2023-04-02 02:48:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:38,138 INFO L225 Difference]: With dead ends: 1467 [2023-04-02 02:48:38,139 INFO L226 Difference]: Without dead ends: 780 [2023-04-02 02:48:38,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:38,144 INFO L413 NwaCegarLoop]: 1048 mSDtfsCounter, 10 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3133 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 02:48:38,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3133 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:38,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-04-02 02:48:38,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 780. [2023-04-02 02:48:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 590 states have (on average 1.6559322033898305) internal successors, (977), 612 states have internal predecessors, (977), 134 states have call successors, (134), 56 states have call predecessors, (134), 55 states have return successors, (132), 124 states have call predecessors, (132), 128 states have call successors, (132) [2023-04-02 02:48:38,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1243 transitions. [2023-04-02 02:48:38,164 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1243 transitions. Word has length 124 [2023-04-02 02:48:38,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:38,165 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1243 transitions. [2023-04-02 02:48:38,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-04-02 02:48:38,165 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1243 transitions. [2023-04-02 02:48:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-04-02 02:48:38,167 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:38,167 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:38,190 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 02:48:38,375 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 02:48:38,377 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:38,377 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:38,377 INFO L85 PathProgramCache]: Analyzing trace with hash 300182752, now seen corresponding path program 1 times [2023-04-02 02:48:38,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:38,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556858883] [2023-04-02 02:48:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:38,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:38,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:38,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:38,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:48:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:48:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:48:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:38,787 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:38,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556858883] [2023-04-02 02:48:38,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556858883] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:38,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487234956] [2023-04-02 02:48:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:38,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:38,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:38,789 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 02:48:38,806 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 02:48:39,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:39,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 2562 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 02:48:39,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:48:39,449 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:39,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487234956] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:39,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2023-04-02 02:48:39,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101107849] [2023-04-02 02:48:39,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:39,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:48:39,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:39,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:48:39,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:48:39,451 INFO L87 Difference]: Start difference. First operand 780 states and 1243 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 02:48:39,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:39,554 INFO L93 Difference]: Finished difference Result 2024 states and 3262 transitions. [2023-04-02 02:48:39,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:48:39,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 126 [2023-04-02 02:48:39,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:39,560 INFO L225 Difference]: With dead ends: 2024 [2023-04-02 02:48:39,560 INFO L226 Difference]: Without dead ends: 1393 [2023-04-02 02:48:39,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-04-02 02:48:39,563 INFO L413 NwaCegarLoop]: 1121 mSDtfsCounter, 943 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:39,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 2113 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:39,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-04-02 02:48:39,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1320. [2023-04-02 02:48:39,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1012 states have (on average 1.6620553359683794) internal successors, (1682), 1043 states have internal predecessors, (1682), 220 states have call successors, (220), 88 states have call predecessors, (220), 87 states have return successors, (226), 201 states have call predecessors, (226), 213 states have call successors, (226) [2023-04-02 02:48:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2128 transitions. [2023-04-02 02:48:39,602 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2128 transitions. Word has length 126 [2023-04-02 02:48:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:39,603 INFO L495 AbstractCegarLoop]: Abstraction has 1320 states and 2128 transitions. [2023-04-02 02:48:39,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 3 states have call successors, (25), 3 states have call predecessors, (25), 2 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2023-04-02 02:48:39,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2128 transitions. [2023-04-02 02:48:39,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 02:48:39,606 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:39,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:39,627 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 02:48:39,814 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 02:48:39,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:39,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:39,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1148955980, now seen corresponding path program 1 times [2023-04-02 02:48:39,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:39,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140221660] [2023-04-02 02:48:39,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:39,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:40,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:40,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:40,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:40,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:40,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:48:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:40,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 02:48:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:48:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:48:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,425 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:40,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140221660] [2023-04-02 02:48:40,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140221660] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331766663] [2023-04-02 02:48:40,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:40,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:40,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:40,443 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 02:48:40,449 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 02:48:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:40,891 INFO L262 TraceCheckSpWp]: Trace formula consists of 2927 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-02 02:48:40,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:41,038 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:48:41,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:41,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331766663] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:41,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:41,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-04-02 02:48:41,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935043770] [2023-04-02 02:48:41,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:41,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:48:41,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:41,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:48:41,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:41,040 INFO L87 Difference]: Start difference. First operand 1320 states and 2128 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 3 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 02:48:41,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:41,445 INFO L93 Difference]: Finished difference Result 3258 states and 5253 transitions. [2023-04-02 02:48:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:41,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 3 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 175 [2023-04-02 02:48:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:41,456 INFO L225 Difference]: With dead ends: 3258 [2023-04-02 02:48:41,456 INFO L226 Difference]: Without dead ends: 2087 [2023-04-02 02:48:41,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:48:41,462 INFO L413 NwaCegarLoop]: 1391 mSDtfsCounter, 984 mSDsluCounter, 4514 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 986 SdHoareTripleChecker+Valid, 5905 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:41,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [986 Valid, 5905 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:48:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-04-02 02:48:41,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2083. [2023-04-02 02:48:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 1602 states have (on average 1.6410736579275904) internal successors, (2629), 1636 states have internal predecessors, (2629), 337 states have call successors, (337), 140 states have call predecessors, (337), 143 states have return successors, (370), 320 states have call predecessors, (370), 328 states have call successors, (370) [2023-04-02 02:48:41,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 3336 transitions. [2023-04-02 02:48:41,565 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 3336 transitions. Word has length 175 [2023-04-02 02:48:41,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:41,565 INFO L495 AbstractCegarLoop]: Abstraction has 2083 states and 3336 transitions. [2023-04-02 02:48:41,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (33), 3 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 02:48:41,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 3336 transitions. [2023-04-02 02:48:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 02:48:41,570 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:41,572 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:48:41,581 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 02:48:41,780 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 02:48:41,781 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:41,781 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1139418643, now seen corresponding path program 1 times [2023-04-02 02:48:41,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:41,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94034349] [2023-04-02 02:48:41,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:41,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:41,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:42,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:48:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:42,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:42,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:42,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:42,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:48:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:48:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:48:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-04-02 02:48:42,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:42,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94034349] [2023-04-02 02:48:42,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94034349] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:42,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1199440784] [2023-04-02 02:48:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:42,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:42,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:42,304 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 02:48:42,306 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 02:48:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:42,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 2927 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-02 02:48:42,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:42,758 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-02 02:48:42,759 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:42,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1199440784] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:42,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:42,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 10 [2023-04-02 02:48:42,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943118860] [2023-04-02 02:48:42,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:42,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:48:42,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:42,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:48:42,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:42,760 INFO L87 Difference]: Start difference. First operand 2083 states and 3336 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 02:48:42,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:42,823 INFO L93 Difference]: Finished difference Result 4125 states and 6634 transitions. [2023-04-02 02:48:42,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:48:42,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 176 [2023-04-02 02:48:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:42,836 INFO L225 Difference]: With dead ends: 4125 [2023-04-02 02:48:42,836 INFO L226 Difference]: Without dead ends: 2060 [2023-04-02 02:48:42,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:48:42,843 INFO L413 NwaCegarLoop]: 1047 mSDtfsCounter, 13 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3132 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 02:48:42,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3132 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:42,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2060 states. [2023-04-02 02:48:42,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2060 to 2060. [2023-04-02 02:48:42,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1583 states have (on average 1.6355022109917878) internal successors, (2589), 1615 states have internal predecessors, (2589), 335 states have call successors, (335), 140 states have call predecessors, (335), 141 states have return successors, (366), 318 states have call predecessors, (366), 326 states have call successors, (366) [2023-04-02 02:48:42,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 3290 transitions. [2023-04-02 02:48:42,926 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 3290 transitions. Word has length 176 [2023-04-02 02:48:42,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:42,927 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 3290 transitions. [2023-04-02 02:48:42,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 02:48:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 3290 transitions. [2023-04-02 02:48:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 02:48:42,932 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:42,932 INFO L195 NwaCegarLoop]: trace histogram [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 02:48:42,957 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-04-02 02:48:43,141 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 02:48:43,141 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:43,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:43,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1897099304, now seen corresponding path program 1 times [2023-04-02 02:48:43,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:43,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841193871] [2023-04-02 02:48:43,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:43,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:43,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:43,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:43,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:48:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:43,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 02:48:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:43,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:43,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:43,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:43,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:48:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:48:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:48:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:43,843 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:43,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:43,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841193871] [2023-04-02 02:48:43,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841193871] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:43,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962784880] [2023-04-02 02:48:43,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:43,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:43,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:43,859 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 02:48:43,860 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 02:48:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:44,293 INFO L262 TraceCheckSpWp]: Trace formula consists of 2926 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-02 02:48:44,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:44,336 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:44,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:44,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962784880] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:44,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:44,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 16 [2023-04-02 02:48:44,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212673345] [2023-04-02 02:48:44,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:44,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:44,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:44,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:44,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:48:44,338 INFO L87 Difference]: Start difference. First operand 2060 states and 3290 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:44,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:44,492 INFO L93 Difference]: Finished difference Result 4089 states and 6533 transitions. [2023-04-02 02:48:44,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:44,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 174 [2023-04-02 02:48:44,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:44,502 INFO L225 Difference]: With dead ends: 4089 [2023-04-02 02:48:44,502 INFO L226 Difference]: Without dead ends: 2077 [2023-04-02 02:48:44,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:48:44,511 INFO L413 NwaCegarLoop]: 1045 mSDtfsCounter, 105 mSDsluCounter, 5101 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6146 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 02:48:44,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6146 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:44,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2077 states. [2023-04-02 02:48:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2077 to 2054. [2023-04-02 02:48:44,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2054 states, 1577 states have (on average 1.63284717818643) internal successors, (2575), 1609 states have internal predecessors, (2575), 335 states have call successors, (335), 140 states have call predecessors, (335), 141 states have return successors, (366), 318 states have call predecessors, (366), 326 states have call successors, (366) [2023-04-02 02:48:44,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 3276 transitions. [2023-04-02 02:48:44,587 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 3276 transitions. Word has length 174 [2023-04-02 02:48:44,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:44,587 INFO L495 AbstractCegarLoop]: Abstraction has 2054 states and 3276 transitions. [2023-04-02 02:48:44,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:44,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 3276 transitions. [2023-04-02 02:48:44,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-04-02 02:48:44,592 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:44,592 INFO L195 NwaCegarLoop]: trace histogram [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 02:48:44,603 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-04-02 02:48:44,801 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 02:48:44,802 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:44,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:44,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1757936234, now seen corresponding path program 1 times [2023-04-02 02:48:44,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:44,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408313384] [2023-04-02 02:48:44,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:44,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:44,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:48:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:48:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:48:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-04-02 02:48:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:48:45,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:48:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:48:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,415 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:45,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408313384] [2023-04-02 02:48:45,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408313384] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:45,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915726817] [2023-04-02 02:48:45,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:45,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:45,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:45,417 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 02:48:45,428 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 02:48:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:45,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 2922 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:45,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:45,923 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:45,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915726817] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:45,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:45,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:48:45,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844753920] [2023-04-02 02:48:45,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:45,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:45,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:45,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:45,925 INFO L87 Difference]: Start difference. First operand 2054 states and 3276 transitions. Second operand has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:46,106 INFO L93 Difference]: Finished difference Result 4089 states and 6529 transitions. [2023-04-02 02:48:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:46,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 174 [2023-04-02 02:48:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:46,115 INFO L225 Difference]: With dead ends: 4089 [2023-04-02 02:48:46,115 INFO L226 Difference]: Without dead ends: 2084 [2023-04-02 02:48:46,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:46,122 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 92 mSDsluCounter, 7133 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 8168 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 02:48:46,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 8168 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:46,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2023-04-02 02:48:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 2056. [2023-04-02 02:48:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1578 states have (on average 1.632446134347275) internal successors, (2576), 1611 states have internal predecessors, (2576), 335 states have call successors, (335), 140 states have call predecessors, (335), 142 states have return successors, (369), 318 states have call predecessors, (369), 326 states have call successors, (369) [2023-04-02 02:48:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3280 transitions. [2023-04-02 02:48:46,189 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3280 transitions. Word has length 174 [2023-04-02 02:48:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:46,189 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 3280 transitions. [2023-04-02 02:48:46,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3280 transitions. [2023-04-02 02:48:46,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-02 02:48:46,194 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:46,194 INFO L195 NwaCegarLoop]: trace histogram [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 02:48:46,218 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 02:48:46,402 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 02:48:46,403 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:46,403 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:46,403 INFO L85 PathProgramCache]: Analyzing trace with hash 531641986, now seen corresponding path program 1 times [2023-04-02 02:48:46,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:46,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689809426] [2023-04-02 02:48:46,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:46,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:46,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:46,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:48:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:48:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:48:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:48:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2023-04-02 02:48:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:48:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:48:46,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:46,999 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:46,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:46,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689809426] [2023-04-02 02:48:46,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689809426] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:46,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102166028] [2023-04-02 02:48:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:46,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:46,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:47,000 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 02:48:47,030 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 02:48:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:47,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 2923 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:47,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:47,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:47,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102166028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:47,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:47,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:48:47,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630942594] [2023-04-02 02:48:47,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:47,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:47,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:47,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:47,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:47,526 INFO L87 Difference]: Start difference. First operand 2056 states and 3280 transitions. Second operand has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:47,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:47,701 INFO L93 Difference]: Finished difference Result 4094 states and 6542 transitions. [2023-04-02 02:48:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 175 [2023-04-02 02:48:47,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:47,710 INFO L225 Difference]: With dead ends: 4094 [2023-04-02 02:48:47,710 INFO L226 Difference]: Without dead ends: 2087 [2023-04-02 02:48:47,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:47,729 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 103 mSDsluCounter, 7121 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 8156 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 02:48:47,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 8156 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:47,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-04-02 02:48:47,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2056. [2023-04-02 02:48:47,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1578 states have (on average 1.632446134347275) internal successors, (2576), 1611 states have internal predecessors, (2576), 335 states have call successors, (335), 140 states have call predecessors, (335), 142 states have return successors, (369), 318 states have call predecessors, (369), 326 states have call successors, (369) [2023-04-02 02:48:47,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3280 transitions. [2023-04-02 02:48:47,778 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3280 transitions. Word has length 175 [2023-04-02 02:48:47,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:47,778 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 3280 transitions. [2023-04-02 02:48:47,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.375) internal successors, (107), 8 states have internal predecessors, (107), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:47,778 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3280 transitions. [2023-04-02 02:48:47,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 02:48:47,782 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:47,782 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:47,790 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 02:48:47,990 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 02:48:47,991 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:47,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:47,991 INFO L85 PathProgramCache]: Analyzing trace with hash -597210981, now seen corresponding path program 1 times [2023-04-02 02:48:47,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:47,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516479372] [2023-04-02 02:48:47,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:47,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:48,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:48:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:48,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:48:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:48:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:48:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:48,611 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:48,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:48,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516479372] [2023-04-02 02:48:48,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516479372] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:48,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446582727] [2023-04-02 02:48:48,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:48,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:48,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:48,613 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 02:48:48,653 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 02:48:49,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 2924 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-02 02:48:49,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:49,103 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:49,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:49,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446582727] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:49,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:49,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 18 [2023-04-02 02:48:49,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391797622] [2023-04-02 02:48:49,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:49,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:48:49,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:49,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:48:49,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:48:49,105 INFO L87 Difference]: Start difference. First operand 2056 states and 3280 transitions. Second operand has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:49,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:49,289 INFO L93 Difference]: Finished difference Result 4094 states and 6542 transitions. [2023-04-02 02:48:49,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-02 02:48:49,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 176 [2023-04-02 02:48:49,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:49,298 INFO L225 Difference]: With dead ends: 4094 [2023-04-02 02:48:49,298 INFO L226 Difference]: Without dead ends: 2087 [2023-04-02 02:48:49,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2023-04-02 02:48:49,304 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 114 mSDsluCounter, 7109 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8144 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 02:48:49,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8144 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:48:49,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2087 states. [2023-04-02 02:48:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2087 to 2056. [2023-04-02 02:48:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1578 states have (on average 1.632446134347275) internal successors, (2576), 1611 states have internal predecessors, (2576), 335 states have call successors, (335), 140 states have call predecessors, (335), 142 states have return successors, (369), 318 states have call predecessors, (369), 326 states have call successors, (369) [2023-04-02 02:48:49,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3280 transitions. [2023-04-02 02:48:49,356 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3280 transitions. Word has length 176 [2023-04-02 02:48:49,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:49,356 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 3280 transitions. [2023-04-02 02:48:49,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 13.5) internal successors, (108), 8 states have internal predecessors, (108), 4 states have call successors, (34), 2 states have call predecessors, (34), 5 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:49,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3280 transitions. [2023-04-02 02:48:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-04-02 02:48:49,361 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:49,361 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:49,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-04-02 02:48:49,569 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 02:48:49,570 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:49,570 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:49,570 INFO L85 PathProgramCache]: Analyzing trace with hash -323248345, now seen corresponding path program 1 times [2023-04-02 02:48:49,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:49,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767390544] [2023-04-02 02:48:49,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:49,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:49,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:49,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:49,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:49,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:48:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:48:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:48:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:48:50,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:48:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 02:48:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:48:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:50,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767390544] [2023-04-02 02:48:50,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767390544] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:48:50,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560789149] [2023-04-02 02:48:50,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:50,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:48:50,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:48:50,215 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 02:48:50,223 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 02:48:50,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:50,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 2925 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-02 02:48:50,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:48:50,712 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-04-02 02:48:50,713 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:48:50,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560789149] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:50,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:48:50,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 16 [2023-04-02 02:48:50,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740967863] [2023-04-02 02:48:50,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:50,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 02:48:50,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:50,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 02:48:50,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:48:50,714 INFO L87 Difference]: Start difference. First operand 2056 states and 3280 transitions. Second operand has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:50,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:50,854 INFO L93 Difference]: Finished difference Result 4079 states and 6520 transitions. [2023-04-02 02:48:50,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:48:50,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) Word has length 177 [2023-04-02 02:48:50,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:50,863 INFO L225 Difference]: With dead ends: 4079 [2023-04-02 02:48:50,863 INFO L226 Difference]: Without dead ends: 2064 [2023-04-02 02:48:50,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:48:50,870 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 118 mSDsluCounter, 5100 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6149 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:50,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6149 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:48:50,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2064 states. [2023-04-02 02:48:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2064 to 2049. [2023-04-02 02:48:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2049 states, 1571 states have (on average 1.6295353278166773) internal successors, (2560), 1604 states have internal predecessors, (2560), 335 states have call successors, (335), 140 states have call predecessors, (335), 142 states have return successors, (369), 318 states have call predecessors, (369), 326 states have call successors, (369) [2023-04-02 02:48:50,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2049 states to 2049 states and 3264 transitions. [2023-04-02 02:48:50,930 INFO L78 Accepts]: Start accepts. Automaton has 2049 states and 3264 transitions. Word has length 177 [2023-04-02 02:48:50,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:50,930 INFO L495 AbstractCegarLoop]: Abstraction has 2049 states and 3264 transitions. [2023-04-02 02:48:50,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 4 states have call successors, (34), 2 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:48:50,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2049 states and 3264 transitions. [2023-04-02 02:48:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-02 02:48:50,935 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:50,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:48:50,957 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 02:48:51,157 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 02:48:51,158 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:51,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:51,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1460808601, now seen corresponding path program 1 times [2023-04-02 02:48:51,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:51,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654007274] [2023-04-02 02:48:51,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:51,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:51,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:51,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:51,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:48:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:48:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:48:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:48:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:48:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,672 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 2 [2023-04-02 02:48:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:51,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:51,687 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 152 [2023-04-02 02:48:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:48:51,689 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 170 [2023-04-02 02:48:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-02 02:48:51,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:51,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654007274] [2023-04-02 02:48:51,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654007274] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:51,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:48:51,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 02:48:51,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002378348] [2023-04-02 02:48:51,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:51,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 02:48:51,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:51,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 02:48:51,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2023-04-02 02:48:51,692 INFO L87 Difference]: Start difference. First operand 2049 states and 3264 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (33), 8 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 02:48:58,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:48:58,677 INFO L93 Difference]: Finished difference Result 4569 states and 7572 transitions. [2023-04-02 02:48:58,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-02 02:48:58,677 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (33), 8 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 02:48:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:48:58,687 INFO L225 Difference]: With dead ends: 4569 [2023-04-02 02:48:58,687 INFO L226 Difference]: Without dead ends: 2563 [2023-04-02 02:48:58,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=223, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:48:58,692 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1345 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1418 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 5345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:48:58,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1418 Valid, 374 Invalid, 5345 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 4831 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:48:58,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2023-04-02 02:48:59,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2060. [2023-04-02 02:48:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2060 states, 1574 states have (on average 1.6270648030495554) internal successors, (2561), 1606 states have internal predecessors, (2561), 340 states have call successors, (340), 140 states have call predecessors, (340), 145 states have return successors, (381), 326 states have call predecessors, (381), 331 states have call successors, (381) [2023-04-02 02:48:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 3282 transitions. [2023-04-02 02:48:59,097 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 3282 transitions. Word has length 178 [2023-04-02 02:48:59,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:48:59,097 INFO L495 AbstractCegarLoop]: Abstraction has 2060 states and 3282 transitions. [2023-04-02 02:48:59,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (33), 8 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 02:48:59,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 3282 transitions. [2023-04-02 02:48:59,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2023-04-02 02:48:59,102 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:48:59,102 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 02:48:59,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-04-02 02:48:59,102 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:48:59,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:48:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -444249748, now seen corresponding path program 1 times [2023-04-02 02:48:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:48:59,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827156396] [2023-04-02 02:48:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:48:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:48:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:48:59,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:48:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:48:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:48:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:48:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:48:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:48:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:48:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-02 02:48:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:48:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:48:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:48:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:48:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:48:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:48:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:48:59,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:48:59,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:48:59,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2023-04-02 02:48:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:48:59,747 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-02 02:48:59,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:48:59,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827156396] [2023-04-02 02:48:59,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827156396] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:48:59,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:48:59,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:48:59,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080623143] [2023-04-02 02:48:59,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:48:59,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:48:59,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:48:59,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:48:59,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:48:59,748 INFO L87 Difference]: Start difference. First operand 2060 states and 3282 transitions. Second operand has 14 states, 12 states have (on average 8.75) internal successors, (105), 7 states have internal predecessors, (105), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 02:49:06,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:06,365 INFO L93 Difference]: Finished difference Result 4572 states and 7601 transitions. [2023-04-02 02:49:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-04-02 02:49:06,365 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.75) internal successors, (105), 7 states have internal predecessors, (105), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) Word has length 176 [2023-04-02 02:49:06,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:06,374 INFO L225 Difference]: With dead ends: 4572 [2023-04-02 02:49:06,374 INFO L226 Difference]: Without dead ends: 2603 [2023-04-02 02:49:06,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=205, Invalid=725, Unknown=0, NotChecked=0, Total=930 [2023-04-02 02:49:06,378 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 2106 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 9779 mSolverCounterSat, 735 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 690 SdHoareTripleChecker+Invalid, 10514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 735 IncrementalHoareTripleChecker+Valid, 9779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:06,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 690 Invalid, 10514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [735 Valid, 9779 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 02:49:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2603 states. [2023-04-02 02:49:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2603 to 2072. [2023-04-02 02:49:06,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1578 states have (on average 1.6254752851711027) internal successors, (2565), 1618 states have internal predecessors, (2565), 344 states have call successors, (344), 140 states have call predecessors, (344), 149 states have return successors, (390), 326 states have call predecessors, (390), 335 states have call successors, (390) [2023-04-02 02:49:06,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 3299 transitions. [2023-04-02 02:49:06,868 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 3299 transitions. Word has length 176 [2023-04-02 02:49:06,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:06,869 INFO L495 AbstractCegarLoop]: Abstraction has 2072 states and 3299 transitions. [2023-04-02 02:49:06,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.75) internal successors, (105), 7 states have internal predecessors, (105), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 3 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 02:49:06,869 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 3299 transitions. [2023-04-02 02:49:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-04-02 02:49:06,874 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:06,874 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-02 02:49:06,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-04-02 02:49:06,874 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:06,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:06,875 INFO L85 PathProgramCache]: Analyzing trace with hash -691275186, now seen corresponding path program 1 times [2023-04-02 02:49:06,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:06,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080996305] [2023-04-02 02:49:06,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:06,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:07,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:07,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:07,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:49:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-04-02 02:49:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:49:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:07,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:49:07,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:49:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:49:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2023-04-02 02:49:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:49:07,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:49:07,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:07,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080996305] [2023-04-02 02:49:07,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080996305] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:07,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:07,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 02:49:07,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521276308] [2023-04-02 02:49:07,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:07,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 02:49:07,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:07,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 02:49:07,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:49:07,474 INFO L87 Difference]: Start difference. First operand 2072 states and 3299 transitions. Second operand has 15 states, 13 states have (on average 8.0) internal successors, (104), 8 states have internal predecessors, (104), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 02:49:15,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:15,470 INFO L93 Difference]: Finished difference Result 4692 states and 7778 transitions. [2023-04-02 02:49:15,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-04-02 02:49:15,471 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 8.0) internal successors, (104), 8 states have internal predecessors, (104), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) Word has length 177 [2023-04-02 02:49:15,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:15,479 INFO L225 Difference]: With dead ends: 4692 [2023-04-02 02:49:15,479 INFO L226 Difference]: Without dead ends: 2672 [2023-04-02 02:49:15,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=362, Invalid=1198, Unknown=0, NotChecked=0, Total=1560 [2023-04-02 02:49:15,484 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 4098 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 9366 mSolverCounterSat, 1464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4171 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 10830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1464 IncrementalHoareTripleChecker+Valid, 9366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:15,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4171 Valid, 681 Invalid, 10830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1464 Valid, 9366 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 02:49:15,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2672 states. [2023-04-02 02:49:15,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2672 to 2052. [2023-04-02 02:49:15,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2052 states, 1558 states have (on average 1.6206675224646983) internal successors, (2525), 1598 states have internal predecessors, (2525), 344 states have call successors, (344), 140 states have call predecessors, (344), 149 states have return successors, (390), 326 states have call predecessors, (390), 335 states have call successors, (390) [2023-04-02 02:49:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2052 states to 2052 states and 3259 transitions. [2023-04-02 02:49:15,931 INFO L78 Accepts]: Start accepts. Automaton has 2052 states and 3259 transitions. Word has length 177 [2023-04-02 02:49:15,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:15,932 INFO L495 AbstractCegarLoop]: Abstraction has 2052 states and 3259 transitions. [2023-04-02 02:49:15,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 8.0) internal successors, (104), 8 states have internal predecessors, (104), 5 states have call successors, (34), 8 states have call predecessors, (34), 4 states have return successors, (27), 4 states have call predecessors, (27), 5 states have call successors, (27) [2023-04-02 02:49:15,932 INFO L276 IsEmpty]: Start isEmpty. Operand 2052 states and 3259 transitions. [2023-04-02 02:49:15,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-04-02 02:49:15,936 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:15,936 INFO L195 NwaCegarLoop]: trace histogram [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 02:49:15,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-02 02:49:15,936 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:15,936 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:15,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1458669658, now seen corresponding path program 1 times [2023-04-02 02:49:15,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:15,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091615185] [2023-04-02 02:49:15,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:15,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:16,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:16,355 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 02:49:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:49:16,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-04-02 02:49:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:49:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:49:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:49:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-04-02 02:49:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-02 02:49:16,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-04-02 02:49:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-02 02:49:16,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:16,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091615185] [2023-04-02 02:49:16,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091615185] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:16,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:16,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:49:16,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269937244] [2023-04-02 02:49:16,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:16,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:49:16,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:16,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:49:16,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:49:16,559 INFO L87 Difference]: Start difference. First operand 2052 states and 3259 transitions. Second operand has 11 states, 10 states have (on average 10.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:49:22,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:22,351 INFO L93 Difference]: Finished difference Result 4580 states and 7624 transitions. [2023-04-02 02:49:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:49:22,354 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) Word has length 178 [2023-04-02 02:49:22,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:22,378 INFO L225 Difference]: With dead ends: 4580 [2023-04-02 02:49:22,378 INFO L226 Difference]: Without dead ends: 2599 [2023-04-02 02:49:22,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2023-04-02 02:49:22,384 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 3904 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 5613 mSolverCounterSat, 1385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 6998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1385 IncrementalHoareTripleChecker+Valid, 5613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:22,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3976 Valid, 440 Invalid, 6998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1385 Valid, 5613 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 02:49:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2599 states. [2023-04-02 02:49:22,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2599 to 2064. [2023-04-02 02:49:22,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2064 states, 1562 states have (on average 1.619078104993598) internal successors, (2529), 1610 states have internal predecessors, (2529), 348 states have call successors, (348), 140 states have call predecessors, (348), 153 states have return successors, (399), 326 states have call predecessors, (399), 339 states have call successors, (399) [2023-04-02 02:49:22,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 3276 transitions. [2023-04-02 02:49:22,854 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 3276 transitions. Word has length 178 [2023-04-02 02:49:22,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:22,857 INFO L495 AbstractCegarLoop]: Abstraction has 2064 states and 3276 transitions. [2023-04-02 02:49:22,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 10.5) internal successors, (105), 5 states have internal predecessors, (105), 4 states have call successors, (34), 8 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:49:22,857 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 3276 transitions. [2023-04-02 02:49:22,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-04-02 02:49:22,861 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:22,861 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:22,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-04-02 02:49:22,862 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:22,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:22,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1534212059, now seen corresponding path program 1 times [2023-04-02 02:49:22,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:22,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395435881] [2023-04-02 02:49:22,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:22,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:23,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:23,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:49:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:49:23,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-04-02 02:49:23,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-04-02 02:49:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:49:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 02:49:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:23,635 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:49:23,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:23,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395435881] [2023-04-02 02:49:23,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395435881] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:23,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:23,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 02:49:23,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88947603] [2023-04-02 02:49:23,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:23,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 02:49:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:23,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 02:49:23,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:49:23,637 INFO L87 Difference]: Start difference. First operand 2064 states and 3276 transitions. Second operand has 15 states, 14 states have (on average 7.142857142857143) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:35,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:35,935 INFO L93 Difference]: Finished difference Result 5972 states and 10703 transitions. [2023-04-02 02:49:35,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-04-02 02:49:35,937 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 7.142857142857143) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) Word has length 179 [2023-04-02 02:49:35,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:35,952 INFO L225 Difference]: With dead ends: 5972 [2023-04-02 02:49:35,953 INFO L226 Difference]: Without dead ends: 3985 [2023-04-02 02:49:35,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 733 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=577, Invalid=1873, Unknown=0, NotChecked=0, Total=2450 [2023-04-02 02:49:35,958 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 5628 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 12843 mSolverCounterSat, 1951 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 14794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1951 IncrementalHoareTripleChecker+Valid, 12843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:35,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5689 Valid, 805 Invalid, 14794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1951 Valid, 12843 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2023-04-02 02:49:35,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2023-04-02 02:49:36,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3115. [2023-04-02 02:49:36,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3115 states, 2352 states have (on average 1.6016156462585034) internal successors, (3767), 2429 states have internal predecessors, (3767), 519 states have call successors, (519), 206 states have call predecessors, (519), 243 states have return successors, (731), 505 states have call predecessors, (731), 508 states have call successors, (731) [2023-04-02 02:49:36,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3115 states to 3115 states and 5017 transitions. [2023-04-02 02:49:36,666 INFO L78 Accepts]: Start accepts. Automaton has 3115 states and 5017 transitions. Word has length 179 [2023-04-02 02:49:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:36,666 INFO L495 AbstractCegarLoop]: Abstraction has 3115 states and 5017 transitions. [2023-04-02 02:49:36,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 7.142857142857143) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 6 states have call predecessors, (26), 5 states have call successors, (26) [2023-04-02 02:49:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3115 states and 5017 transitions. [2023-04-02 02:49:36,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-04-02 02:49:36,670 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:36,670 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:36,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-04-02 02:49:36,670 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:36,670 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:36,670 INFO L85 PathProgramCache]: Analyzing trace with hash 423137633, now seen corresponding path program 1 times [2023-04-02 02:49:36,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:36,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261629605] [2023-04-02 02:49:36,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:36,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:37,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:49:37,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:37,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:49:37,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:37,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:49:37,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-04-02 02:49:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:49:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:49:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:49:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:37,438 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:49:37,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:37,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261629605] [2023-04-02 02:49:37,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261629605] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:37,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:37,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:49:37,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002407851] [2023-04-02 02:49:37,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:37,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:49:37,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:49:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:49:37,441 INFO L87 Difference]: Start difference. First operand 3115 states and 5017 transitions. Second operand has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:52,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:49:52,746 INFO L93 Difference]: Finished difference Result 9831 states and 19328 transitions. [2023-04-02 02:49:52,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-02 02:49:52,746 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 181 [2023-04-02 02:49:52,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:49:52,773 INFO L225 Difference]: With dead ends: 9831 [2023-04-02 02:49:52,773 INFO L226 Difference]: Without dead ends: 6793 [2023-04-02 02:49:52,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 616 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=522, Invalid=1640, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 02:49:52,784 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 4688 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 11445 mSolverCounterSat, 1731 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4756 SdHoareTripleChecker+Valid, 903 SdHoareTripleChecker+Invalid, 13176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1731 IncrementalHoareTripleChecker+Valid, 11445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:49:52,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4756 Valid, 903 Invalid, 13176 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1731 Valid, 11445 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-04-02 02:49:52,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2023-04-02 02:49:53,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 5181. [2023-04-02 02:49:53,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5181 states, 3910 states have (on average 1.593606138107417) internal successors, (6231), 4035 states have internal predecessors, (6231), 863 states have call successors, (863), 338 states have call predecessors, (863), 407 states have return successors, (1528), 859 states have call predecessors, (1528), 848 states have call successors, (1528) [2023-04-02 02:49:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5181 states to 5181 states and 8622 transitions. [2023-04-02 02:49:54,019 INFO L78 Accepts]: Start accepts. Automaton has 5181 states and 8622 transitions. Word has length 181 [2023-04-02 02:49:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:49:54,019 INFO L495 AbstractCegarLoop]: Abstraction has 5181 states and 8622 transitions. [2023-04-02 02:49:54,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 7.846153846153846) internal successors, (102), 6 states have internal predecessors, (102), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:49:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5181 states and 8622 transitions. [2023-04-02 02:49:54,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-02 02:49:54,024 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:49:54,024 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:49:54,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-04-02 02:49:54,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:49:54,025 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:49:54,025 INFO L85 PathProgramCache]: Analyzing trace with hash 782508293, now seen corresponding path program 1 times [2023-04-02 02:49:54,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:49:54,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836240469] [2023-04-02 02:49:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:49:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:49:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:49:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:54,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:49:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:49:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:49:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:49:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:49:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:49:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:49:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:49:54,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:49:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:49:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:49:54,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:49:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:49:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:49:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 02:49:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-02 02:49:54,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:49:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2023-04-02 02:49:54,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-02 02:49:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:49:54,782 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:49:54,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:49:54,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836240469] [2023-04-02 02:49:54,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836240469] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:49:54,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:49:54,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:49:54,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424711787] [2023-04-02 02:49:54,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:49:54,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:49:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:49:54,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:49:54,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:49:54,784 INFO L87 Difference]: Start difference. First operand 5181 states and 8622 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 9 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 02:50:09,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:09,670 INFO L93 Difference]: Finished difference Result 17357 states and 39718 transitions. [2023-04-02 02:50:09,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-04-02 02:50:09,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 9 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 182 [2023-04-02 02:50:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:09,743 INFO L225 Difference]: With dead ends: 17357 [2023-04-02 02:50:09,743 INFO L226 Difference]: Without dead ends: 12253 [2023-04-02 02:50:09,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=327, Invalid=863, Unknown=0, NotChecked=0, Total=1190 [2023-04-02 02:50:09,763 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 4490 mSDsluCounter, 485 mSDsCounter, 0 mSdLazyCounter, 9017 mSolverCounterSat, 1594 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4558 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 10611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1594 IncrementalHoareTripleChecker+Valid, 9017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:09,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4558 Valid, 592 Invalid, 10611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1594 Valid, 9017 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2023-04-02 02:50:09,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12253 states. [2023-04-02 02:50:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12253 to 9303. [2023-04-02 02:50:12,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9303 states, 7024 states have (on average 1.5872722095671983) internal successors, (11149), 7257 states have internal predecessors, (11149), 1539 states have call successors, (1539), 602 states have call predecessors, (1539), 739 states have return successors, (3598), 1547 states have call predecessors, (3598), 1516 states have call successors, (3598) [2023-04-02 02:50:12,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9303 states to 9303 states and 16286 transitions. [2023-04-02 02:50:12,200 INFO L78 Accepts]: Start accepts. Automaton has 9303 states and 16286 transitions. Word has length 182 [2023-04-02 02:50:12,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:12,200 INFO L495 AbstractCegarLoop]: Abstraction has 9303 states and 16286 transitions. [2023-04-02 02:50:12,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (33), 9 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 02:50:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 9303 states and 16286 transitions. [2023-04-02 02:50:12,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-02 02:50:12,205 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:12,205 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:12,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-04-02 02:50:12,206 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:12,206 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:12,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1652301408, now seen corresponding path program 1 times [2023-04-02 02:50:12,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:12,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850050697] [2023-04-02 02:50:12,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:12,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:12,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:12,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:12,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:12,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:12,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:50:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:50:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:50:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-04-02 02:50:12,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-04-02 02:50:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2023-04-02 02:50:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:12,975 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:50:12,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:12,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850050697] [2023-04-02 02:50:12,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850050697] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:12,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:50:12,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:50:12,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272350149] [2023-04-02 02:50:12,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:12,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:50:12,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:12,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:50:12,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:50:12,977 INFO L87 Difference]: Start difference. First operand 9303 states and 16286 transitions. Second operand has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:50:31,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:50:31,922 INFO L93 Difference]: Finished difference Result 33401 states and 76292 transitions. [2023-04-02 02:50:31,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2023-04-02 02:50:31,922 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) Word has length 184 [2023-04-02 02:50:31,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:50:32,043 INFO L225 Difference]: With dead ends: 33401 [2023-04-02 02:50:32,043 INFO L226 Difference]: Without dead ends: 24183 [2023-04-02 02:50:32,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 603 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=522, Invalid=1640, Unknown=0, NotChecked=0, Total=2162 [2023-04-02 02:50:32,090 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 5930 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 10815 mSolverCounterSat, 2045 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5998 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 12860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2045 IncrementalHoareTripleChecker+Valid, 10815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:50:32,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5998 Valid, 592 Invalid, 12860 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2045 Valid, 10815 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-04-02 02:50:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24183 states. [2023-04-02 02:50:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24183 to 18445. [2023-04-02 02:50:36,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18445 states, 13932 states have (on average 1.5861326442721793) internal successors, (22098), 14369 states have internal predecessors, (22098), 3012 states have call successors, (3012), 1170 states have call predecessors, (3012), 1500 states have return successors, (8293), 3081 states have call predecessors, (8293), 2971 states have call successors, (8293) [2023-04-02 02:50:36,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18445 states to 18445 states and 33403 transitions. [2023-04-02 02:50:36,990 INFO L78 Accepts]: Start accepts. Automaton has 18445 states and 33403 transitions. Word has length 184 [2023-04-02 02:50:36,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:50:36,990 INFO L495 AbstractCegarLoop]: Abstraction has 18445 states and 33403 transitions. [2023-04-02 02:50:36,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 8.076923076923077) internal successors, (105), 6 states have internal predecessors, (105), 4 states have call successors, (33), 9 states have call predecessors, (33), 5 states have return successors, (26), 5 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-02 02:50:36,990 INFO L276 IsEmpty]: Start isEmpty. Operand 18445 states and 33403 transitions. [2023-04-02 02:50:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:50:36,996 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:50:36,996 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:50:36,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-04-02 02:50:36,996 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:50:36,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:50:36,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1068862386, now seen corresponding path program 1 times [2023-04-02 02:50:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:50:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129705200] [2023-04-02 02:50:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:50:36,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:50:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:50:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:37,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:50:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:50:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:50:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:50:37,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:50:37,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:37,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:50:37,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:50:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:50:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:50:37,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:50:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:50:37,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:50:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:50:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:50:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:50:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:50:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:50:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2023-04-02 02:50:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:50:37,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:50:37,780 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:50:37,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:50:37,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129705200] [2023-04-02 02:50:37,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129705200] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:50:37,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:50:37,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2023-04-02 02:50:37,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027839602] [2023-04-02 02:50:37,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:50:37,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-02 02:50:37,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:50:37,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-02 02:50:37,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:50:37,782 INFO L87 Difference]: Start difference. First operand 18445 states and 33403 transitions. Second operand has 17 states, 15 states have (on average 7.4) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (34), 9 states have call predecessors, (34), 7 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-04-02 02:51:34,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:34,418 INFO L93 Difference]: Finished difference Result 101583 states and 341611 transitions. [2023-04-02 02:51:34,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-04-02 02:51:34,419 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 7.4) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (34), 9 states have call predecessors, (34), 7 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) Word has length 192 [2023-04-02 02:51:34,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:35,492 INFO L225 Difference]: With dead ends: 101583 [2023-04-02 02:51:35,493 INFO L226 Difference]: Without dead ends: 83215 [2023-04-02 02:51:35,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2548 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1509, Invalid=5297, Unknown=0, NotChecked=0, Total=6806 [2023-04-02 02:51:35,994 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 18383 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 18534 mSolverCounterSat, 5913 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18446 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 24447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5913 IncrementalHoareTripleChecker+Valid, 18534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:35,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18446 Valid, 1322 Invalid, 24447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5913 Valid, 18534 Invalid, 0 Unknown, 0 Unchecked, 17.4s Time] [2023-04-02 02:51:36,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83215 states. [2023-04-02 02:51:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83215 to 63738. [2023-04-02 02:51:57,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63738 states, 48800 states have (on average 1.5638934426229507) internal successors, (76318), 50607 states have internal predecessors, (76318), 9735 states have call successors, (9735), 3792 states have call predecessors, (9735), 5202 states have return successors, (43036), 10042 states have call predecessors, (43036), 9628 states have call successors, (43036) [2023-04-02 02:51:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63738 states to 63738 states and 129089 transitions. [2023-04-02 02:51:57,931 INFO L78 Accepts]: Start accepts. Automaton has 63738 states and 129089 transitions. Word has length 192 [2023-04-02 02:51:57,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:57,931 INFO L495 AbstractCegarLoop]: Abstraction has 63738 states and 129089 transitions. [2023-04-02 02:51:57,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 7.4) internal successors, (111), 10 states have internal predecessors, (111), 7 states have call successors, (34), 9 states have call predecessors, (34), 7 states have return successors, (27), 6 states have call predecessors, (27), 7 states have call successors, (27) [2023-04-02 02:51:57,931 INFO L276 IsEmpty]: Start isEmpty. Operand 63738 states and 129089 transitions. [2023-04-02 02:51:57,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-02 02:51:57,938 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:57,938 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:57,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-04-02 02:51:57,938 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:57,938 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:57,938 INFO L85 PathProgramCache]: Analyzing trace with hash -946235573, now seen corresponding path program 1 times [2023-04-02 02:51:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:57,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029961628] [2023-04-02 02:51:57,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:57,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:58,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:58,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:51:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:51:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:51:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:51:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:51:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-04-02 02:51:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:51:58,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-04-02 02:51:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:51:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-04-02 02:51:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 02:51:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:51:58,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:58,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029961628] [2023-04-02 02:51:58,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029961628] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:58,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:58,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-02 02:51:58,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713283055] [2023-04-02 02:51:58,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:58,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-02 02:51:58,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:58,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-02 02:51:58,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-04-02 02:51:58,634 INFO L87 Difference]: Start difference. First operand 63738 states and 129089 transitions. Second operand has 11 states, 10 states have (on average 11.6) internal successors, (116), 5 states have internal predecessors, (116), 4 states have call successors, (35), 9 states have call predecessors, (35), 4 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28)