/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 02:51:29,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 02:51:29,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 02:51:29,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 02:51:29,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 02:51:29,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 02:51:29,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 02:51:29,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 02:51:29,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 02:51:29,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 02:51:29,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 02:51:29,966 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 02:51:29,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 02:51:29,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 02:51:29,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 02:51:29,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 02:51:29,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 02:51:29,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 02:51:29,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 02:51:29,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 02:51:29,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 02:51:29,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 02:51:29,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 02:51:29,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 02:51:29,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 02:51:29,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 02:51:29,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 02:51:29,989 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 02:51:29,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 02:51:29,990 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 02:51:29,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 02:51:29,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 02:51:29,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 02:51:29,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 02:51:29,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 02:51:29,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 02:51:29,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 02:51:29,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 02:51:29,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 02:51:29,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 02:51:29,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 02:51:29,996 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-02 02:51:30,021 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 02:51:30,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 02:51:30,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 02:51:30,022 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 02:51:30,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 02:51:30,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 02:51:30,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 02:51:30,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 02:51:30,024 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 02:51:30,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 02:51:30,024 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 02:51:30,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 02:51:30,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 02:51:30,025 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:30,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 02:51:30,026 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 02:51:30,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 02:51:30,027 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 02:51:30,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 02:51:30,027 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 02:51:30,027 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 02:51:30,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 02:51:30,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 02:51:30,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 02:51:30,234 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 02:51:30,235 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 02:51:30,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2023-04-02 02:51:31,246 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 02:51:31,469 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 02:51:31,469 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2023-04-02 02:51:31,486 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a852b38a/c121980b2d824d5082c4fc7446d0e369/FLAG8e2dc7c2c [2023-04-02 02:51:31,497 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a852b38a/c121980b2d824d5082c4fc7446d0e369 [2023-04-02 02:51:31,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 02:51:31,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 02:51:31,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:31,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 02:51:31,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 02:51:31,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:31,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e914eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31, skipping insertion in model container [2023-04-02 02:51:31,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:31,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 02:51:31,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 02:51:31,652 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2023-04-02 02:51:31,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:31,884 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 02:51:31,893 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2023-04-02 02:51:31,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 02:51:31,992 INFO L208 MainTranslator]: Completed translation [2023-04-02 02:51:31,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31 WrapperNode [2023-04-02 02:51:31,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 02:51:31,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 02:51:31,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 02:51:31,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 02:51:32,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,096 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 02:51:32,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 02:51:32,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 02:51:32,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 02:51:32,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (1/1) ... [2023-04-02 02:51:32,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 02:51:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:51:32,160 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 02:51:32,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 02:51:32,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 02:51:32,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__weight [2023-04-02 02:51:32,194 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2023-04-02 02:51:32,195 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloor [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2023-04-02 02:51:32,196 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2023-04-02 02:51:32,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2023-04-02 02:51:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2023-04-02 02:51:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 02:51:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2023-04-02 02:51:32,198 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2023-04-02 02:51:32,199 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2023-04-02 02:51:32,200 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2023-04-02 02:51:32,201 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2023-04-02 02:51:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 02:51:32,201 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2023-04-02 02:51:32,202 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2023-04-02 02:51:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2023-04-02 02:51:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2023-04-02 02:51:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2023-04-02 02:51:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2023-04-02 02:51:32,203 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloor [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2023-04-02 02:51:32,204 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__weight [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2023-04-02 02:51:32,205 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification14_spec__1 [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2023-04-02 02:51:32,206 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2023-04-02 02:51:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2023-04-02 02:51:32,207 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2023-04-02 02:51:32,209 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2023-04-02 02:51:32,214 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure test [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2023-04-02 02:51:32,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 02:51:32,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 02:51:32,443 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 02:51:32,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 02:51:33,483 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 02:51:33,499 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 02:51:33,499 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-04-02 02:51:33,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:33 BoogieIcfgContainer [2023-04-02 02:51:33,503 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 02:51:33,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 02:51:33,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 02:51:33,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 02:51:33,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 02:51:31" (1/3) ... [2023-04-02 02:51:33,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2a0dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:33, skipping insertion in model container [2023-04-02 02:51:33,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 02:51:31" (2/3) ... [2023-04-02 02:51:33,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2a0dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 02:51:33, skipping insertion in model container [2023-04-02 02:51:33,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 02:51:33" (3/3) ... [2023-04-02 02:51:33,512 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product27.cil.c [2023-04-02 02:51:33,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 02:51:33,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 02:51:33,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 02:51:33,588 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;@2cc0ddfb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 02:51:33,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 02:51:33,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 751 states, 519 states have (on average 1.6204238921001928) internal successors, (841), 542 states have internal predecessors, (841), 169 states have call successors, (169), 51 states have call predecessors, (169), 51 states have return successors, (169), 164 states have call predecessors, (169), 169 states have call successors, (169) [2023-04-02 02:51:33,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-02 02:51:33,619 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:33,620 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:33,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:33,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:33,624 INFO L85 PathProgramCache]: Analyzing trace with hash -1903154888, now seen corresponding path program 1 times [2023-04-02 02:51:33,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:33,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904235717] [2023-04-02 02:51:33,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:33,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:34,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:34,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:34,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:34,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:51:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-04-02 02:51:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-04-02 02:51:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-04-02 02:51:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:51:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:51:34,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:51:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:51:34,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:34,562 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:34,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:34,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904235717] [2023-04-02 02:51:34,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904235717] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:34,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:34,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:34,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466028146] [2023-04-02 02:51:34,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:34,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:34,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:34,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:34,605 INFO L87 Difference]: Start difference. First operand has 751 states, 519 states have (on average 1.6204238921001928) internal successors, (841), 542 states have internal predecessors, (841), 169 states have call successors, (169), 51 states have call predecessors, (169), 51 states have return successors, (169), 164 states have call predecessors, (169), 169 states have call successors, (169) Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:41,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:41,480 INFO L93 Difference]: Finished difference Result 1532 states and 2626 transitions. [2023-04-02 02:51:41,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 02:51:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 135 [2023-04-02 02:51:41,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:41,502 INFO L225 Difference]: With dead ends: 1532 [2023-04-02 02:51:41,502 INFO L226 Difference]: Without dead ends: 887 [2023-04-02 02:51:41,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:51:41,516 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1647 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 4083 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1747 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 4632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 4083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:41,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1747 Valid, 456 Invalid, 4632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [549 Valid, 4083 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-04-02 02:51:41,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-04-02 02:51:41,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 603. [2023-04-02 02:51:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 440 states have (on average 1.6363636363636365) internal successors, (720), 455 states have internal predecessors, (720), 118 states have call successors, (118), 49 states have call predecessors, (118), 44 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-02 02:51:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 951 transitions. [2023-04-02 02:51:41,735 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 951 transitions. Word has length 135 [2023-04-02 02:51:41,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:41,735 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 951 transitions. [2023-04-02 02:51:41,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:41,735 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 951 transitions. [2023-04-02 02:51:41,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-04-02 02:51:41,740 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:41,740 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:41,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 02:51:41,741 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:41,741 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:41,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1032640673, now seen corresponding path program 1 times [2023-04-02 02:51:41,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:41,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375059793] [2023-04-02 02:51:41,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:41,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:41,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:42,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:42,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:42,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:51:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:51:42,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-04-02 02:51:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-04-02 02:51:42,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:51:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-04-02 02:51:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:51:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:51:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:42,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:42,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375059793] [2023-04-02 02:51:42,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375059793] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:42,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:42,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:42,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639316585] [2023-04-02 02:51:42,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:42,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:42,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:42,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:42,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:42,232 INFO L87 Difference]: Start difference. First operand 603 states and 951 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:47,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:47,908 INFO L93 Difference]: Finished difference Result 1457 states and 2438 transitions. [2023-04-02 02:51:47,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:47,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 136 [2023-04-02 02:51:47,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:47,925 INFO L225 Difference]: With dead ends: 1457 [2023-04-02 02:51:47,925 INFO L226 Difference]: Without dead ends: 887 [2023-04-02 02:51:47,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:47,933 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1699 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 3965 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 4533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 3965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:47,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 380 Invalid, 4533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 3965 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-04-02 02:51:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-04-02 02:51:48,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 603. [2023-04-02 02:51:48,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 440 states have (on average 1.634090909090909) internal successors, (719), 455 states have internal predecessors, (719), 118 states have call successors, (118), 49 states have call predecessors, (118), 44 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-02 02:51:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 950 transitions. [2023-04-02 02:51:48,070 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 950 transitions. Word has length 136 [2023-04-02 02:51:48,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:48,070 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 950 transitions. [2023-04-02 02:51:48,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 950 transitions. [2023-04-02 02:51:48,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-04-02 02:51:48,073 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:48,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:48,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 02:51:48,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:48,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:48,074 INFO L85 PathProgramCache]: Analyzing trace with hash 532132756, now seen corresponding path program 1 times [2023-04-02 02:51:48,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:48,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909881491] [2023-04-02 02:51:48,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:48,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:48,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:51:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-04-02 02:51:48,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-02 02:51:48,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:51:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:51:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 02:51:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:51:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909881491] [2023-04-02 02:51:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909881491] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:48,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:48,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:48,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147514429] [2023-04-02 02:51:48,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:48,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:48,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:48,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:48,502 INFO L87 Difference]: Start difference. First operand 603 states and 950 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:53,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:53,944 INFO L93 Difference]: Finished difference Result 1457 states and 2437 transitions. [2023-04-02 02:51:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:53,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 137 [2023-04-02 02:51:53,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:53,956 INFO L225 Difference]: With dead ends: 1457 [2023-04-02 02:51:53,956 INFO L226 Difference]: Without dead ends: 887 [2023-04-02 02:51:53,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:53,964 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1573 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 3877 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1672 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 4436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 3877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:53,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1672 Valid, 380 Invalid, 4436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 3877 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-04-02 02:51:53,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-04-02 02:51:54,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 603. [2023-04-02 02:51:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 440 states have (on average 1.6318181818181818) internal successors, (718), 455 states have internal predecessors, (718), 118 states have call successors, (118), 49 states have call predecessors, (118), 44 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-02 02:51:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 949 transitions. [2023-04-02 02:51:54,127 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 949 transitions. Word has length 137 [2023-04-02 02:51:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:51:54,128 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 949 transitions. [2023-04-02 02:51:54,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:54,128 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 949 transitions. [2023-04-02 02:51:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-04-02 02:51:54,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:51:54,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:51:54,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 02:51:54,131 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:51:54,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:51:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2144105339, now seen corresponding path program 1 times [2023-04-02 02:51:54,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:51:54,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416865180] [2023-04-02 02:51:54,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:51:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:51:54,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:51:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:51:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:51:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:51:54,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:51:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:51:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 02:51:54,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:51:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:51:54,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-04-02 02:51:54,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:51:54,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-04-02 02:51:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:51:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:51:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-04-02 02:51:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:51:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:51:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:51:54,660 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:51:54,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:51:54,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416865180] [2023-04-02 02:51:54,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416865180] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:51:54,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:51:54,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:51:54,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968915568] [2023-04-02 02:51:54,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:51:54,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:51:54,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:51:54,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:51:54,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:51:54,663 INFO L87 Difference]: Start difference. First operand 603 states and 949 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:51:59,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:51:59,933 INFO L93 Difference]: Finished difference Result 1457 states and 2436 transitions. [2023-04-02 02:51:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:51:59,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 138 [2023-04-02 02:51:59,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:51:59,939 INFO L225 Difference]: With dead ends: 1457 [2023-04-02 02:51:59,939 INFO L226 Difference]: Without dead ends: 887 [2023-04-02 02:51:59,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:51:59,942 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 1575 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 3825 mSolverCounterSat, 578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1673 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 4403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 3825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:51:59,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1673 Valid, 387 Invalid, 4403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 3825 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-04-02 02:51:59,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-04-02 02:52:00,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 603. [2023-04-02 02:52:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 440 states have (on average 1.6295454545454546) internal successors, (717), 455 states have internal predecessors, (717), 118 states have call successors, (118), 49 states have call predecessors, (118), 44 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-02 02:52:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 948 transitions. [2023-04-02 02:52:00,070 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 948 transitions. Word has length 138 [2023-04-02 02:52:00,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:00,071 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 948 transitions. [2023-04-02 02:52:00,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:52:00,071 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 948 transitions. [2023-04-02 02:52:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-04-02 02:52:00,073 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:00,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:00,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 02:52:00,073 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:00,074 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash 924284400, now seen corresponding path program 1 times [2023-04-02 02:52:00,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:00,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375374114] [2023-04-02 02:52:00,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-04-02 02:52:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:52:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:52:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-04-02 02:52:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-04-02 02:52:00,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-04-02 02:52:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:52:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:52:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:52:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:00,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375374114] [2023-04-02 02:52:00,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375374114] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:00,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:00,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064093981] [2023-04-02 02:52:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:00,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:00,551 INFO L87 Difference]: Start difference. First operand 603 states and 948 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:52:05,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:05,621 INFO L93 Difference]: Finished difference Result 1457 states and 2435 transitions. [2023-04-02 02:52:05,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-02 02:52:05,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 139 [2023-04-02 02:52:05,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:05,626 INFO L225 Difference]: With dead ends: 1457 [2023-04-02 02:52:05,626 INFO L226 Difference]: Without dead ends: 887 [2023-04-02 02:52:05,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:52:05,628 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2214 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 833 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2314 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 4602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 833 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:05,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2314 Valid, 367 Invalid, 4602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [833 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-02 02:52:05,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-04-02 02:52:05,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 603. [2023-04-02 02:52:05,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 440 states have (on average 1.6272727272727272) internal successors, (716), 455 states have internal predecessors, (716), 118 states have call successors, (118), 49 states have call predecessors, (118), 44 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2023-04-02 02:52:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 947 transitions. [2023-04-02 02:52:05,758 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 947 transitions. Word has length 139 [2023-04-02 02:52:05,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:05,758 INFO L495 AbstractCegarLoop]: Abstraction has 603 states and 947 transitions. [2023-04-02 02:52:05,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:52:05,758 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 947 transitions. [2023-04-02 02:52:05,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 02:52:05,761 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:05,761 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:05,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 02:52:05,761 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:05,761 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:05,761 INFO L85 PathProgramCache]: Analyzing trace with hash 2113177495, now seen corresponding path program 1 times [2023-04-02 02:52:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:05,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467087308] [2023-04-02 02:52:05,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:05,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:06,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:52:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:52:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:52:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:06,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:52:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:52:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:52:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:52:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:52:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:06,268 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:06,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:06,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467087308] [2023-04-02 02:52:06,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467087308] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:06,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:06,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:52:06,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420717462] [2023-04-02 02:52:06,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:06,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:52:06,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:06,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:52:06,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:52:06,270 INFO L87 Difference]: Start difference. First operand 603 states and 947 transitions. Second operand has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:13,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:13,910 INFO L93 Difference]: Finished difference Result 1471 states and 2460 transitions. [2023-04-02 02:52:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-04-02 02:52:13,911 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) Word has length 140 [2023-04-02 02:52:13,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:13,915 INFO L225 Difference]: With dead ends: 1471 [2023-04-02 02:52:13,915 INFO L226 Difference]: Without dead ends: 905 [2023-04-02 02:52:13,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=161, Invalid=709, Unknown=0, NotChecked=0, Total=870 [2023-04-02 02:52:13,917 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 2227 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 10220 mSolverCounterSat, 786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 11006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 786 IncrementalHoareTripleChecker+Valid, 10220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:13,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 952 Invalid, 11006 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [786 Valid, 10220 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-02 02:52:13,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 905 states. [2023-04-02 02:52:14,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 905 to 610. [2023-04-02 02:52:14,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 443 states have (on average 1.6230248306997743) internal successors, (719), 460 states have internal predecessors, (719), 120 states have call successors, (120), 49 states have call predecessors, (120), 46 states have return successors, (118), 112 states have call predecessors, (118), 115 states have call successors, (118) [2023-04-02 02:52:14,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 957 transitions. [2023-04-02 02:52:14,053 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 957 transitions. Word has length 140 [2023-04-02 02:52:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:14,053 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 957 transitions. [2023-04-02 02:52:14,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.461538461538462) internal successors, (71), 8 states have internal predecessors, (71), 4 states have call successors, (28), 6 states have call predecessors, (28), 5 states have return successors, (21), 5 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 957 transitions. [2023-04-02 02:52:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-02 02:52:14,056 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:14,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:14,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 02:52:14,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:14,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:14,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1126594806, now seen corresponding path program 1 times [2023-04-02 02:52:14,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:14,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665205227] [2023-04-02 02:52:14,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:14,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:14,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:14,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:14,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:14,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-04-02 02:52:14,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-04-02 02:52:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-04-02 02:52:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-04-02 02:52:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:52:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-04-02 02:52:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:52:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:52:14,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:14,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:14,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665205227] [2023-04-02 02:52:14,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665205227] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:14,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:14,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:14,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084642996] [2023-04-02 02:52:14,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:14,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:14,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:14,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:14,413 INFO L87 Difference]: Start difference. First operand 610 states and 957 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:20,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:20,262 INFO L93 Difference]: Finished difference Result 1492 states and 2503 transitions. [2023-04-02 02:52:20,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 02:52:20,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 140 [2023-04-02 02:52:20,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:20,266 INFO L225 Difference]: With dead ends: 1492 [2023-04-02 02:52:20,266 INFO L226 Difference]: Without dead ends: 923 [2023-04-02 02:52:20,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2023-04-02 02:52:20,268 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1198 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 3889 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1297 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 4297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 3889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:20,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1297 Valid, 396 Invalid, 4297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 3889 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-04-02 02:52:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-04-02 02:52:20,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 624. [2023-04-02 02:52:20,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 455 states have (on average 1.6175824175824176) internal successors, (736), 472 states have internal predecessors, (736), 121 states have call successors, (121), 50 states have call predecessors, (121), 47 states have return successors, (118), 113 states have call predecessors, (118), 116 states have call successors, (118) [2023-04-02 02:52:20,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 975 transitions. [2023-04-02 02:52:20,417 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 975 transitions. Word has length 140 [2023-04-02 02:52:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:20,418 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 975 transitions. [2023-04-02 02:52:20,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 4 states have internal predecessors, (71), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:20,418 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 975 transitions. [2023-04-02 02:52:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-02 02:52:20,420 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:20,420 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:20,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-02 02:52:20,420 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:20,421 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:20,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1376120058, now seen corresponding path program 1 times [2023-04-02 02:52:20,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:20,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603762825] [2023-04-02 02:52:20,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:20,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:20,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:20,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-04-02 02:52:20,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-02 02:52:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:20,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-04-02 02:52:20,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-04-02 02:52:20,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-04-02 02:52:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:20,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:52:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:52:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:52:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:20,750 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:20,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:20,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603762825] [2023-04-02 02:52:20,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603762825] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:20,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:20,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:20,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755503625] [2023-04-02 02:52:20,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:20,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:20,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:20,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:20,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:20,752 INFO L87 Difference]: Start difference. First operand 624 states and 975 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:25,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:25,583 INFO L93 Difference]: Finished difference Result 1469 states and 2434 transitions. [2023-04-02 02:52:25,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:52:25,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 141 [2023-04-02 02:52:25,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:25,588 INFO L225 Difference]: With dead ends: 1469 [2023-04-02 02:52:25,588 INFO L226 Difference]: Without dead ends: 918 [2023-04-02 02:52:25,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:52:25,590 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 2198 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 3691 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 4446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 3691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:25,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 386 Invalid, 4446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 3691 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-02 02:52:25,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-04-02 02:52:25,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 624. [2023-04-02 02:52:25,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 455 states have (on average 1.6065934065934067) internal successors, (731), 472 states have internal predecessors, (731), 121 states have call successors, (121), 50 states have call predecessors, (121), 47 states have return successors, (118), 113 states have call predecessors, (118), 116 states have call successors, (118) [2023-04-02 02:52:25,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 970 transitions. [2023-04-02 02:52:25,734 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 970 transitions. Word has length 141 [2023-04-02 02:52:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:25,734 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 970 transitions. [2023-04-02 02:52:25,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 970 transitions. [2023-04-02 02:52:25,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-02 02:52:25,736 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:25,737 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:25,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-02 02:52:25,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:25,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:25,737 INFO L85 PathProgramCache]: Analyzing trace with hash -598904069, now seen corresponding path program 1 times [2023-04-02 02:52:25,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:25,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085141524] [2023-04-02 02:52:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:25,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:25,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:25,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:25,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:25,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-04-02 02:52:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:52:26,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:26,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-02 02:52:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:26,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-02 02:52:26,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:52:26,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:26,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-04-02 02:52:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:52:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 02:52:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:26,120 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:26,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:26,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085141524] [2023-04-02 02:52:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085141524] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:26,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:26,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145887365] [2023-04-02 02:52:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:26,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:26,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:26,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:26,122 INFO L87 Difference]: Start difference. First operand 624 states and 970 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:32,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:32,421 INFO L93 Difference]: Finished difference Result 1469 states and 2429 transitions. [2023-04-02 02:52:32,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:52:32,422 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 142 [2023-04-02 02:52:32,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:32,427 INFO L225 Difference]: With dead ends: 1469 [2023-04-02 02:52:32,428 INFO L226 Difference]: Without dead ends: 918 [2023-04-02 02:52:32,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:52:32,443 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 1634 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 3882 mSolverCounterSat, 536 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1735 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 4418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 536 IncrementalHoareTripleChecker+Valid, 3882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:32,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1735 Valid, 363 Invalid, 4418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [536 Valid, 3882 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:52:32,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-04-02 02:52:32,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 624. [2023-04-02 02:52:32,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 455 states have (on average 1.5956043956043957) internal successors, (726), 472 states have internal predecessors, (726), 121 states have call successors, (121), 50 states have call predecessors, (121), 47 states have return successors, (118), 113 states have call predecessors, (118), 116 states have call successors, (118) [2023-04-02 02:52:32,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 965 transitions. [2023-04-02 02:52:32,630 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 965 transitions. Word has length 142 [2023-04-02 02:52:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:32,630 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 965 transitions. [2023-04-02 02:52:32,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 4 states have internal predecessors, (73), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 965 transitions. [2023-04-02 02:52:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 02:52:32,634 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:32,634 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:32,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-02 02:52:32,634 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:32,634 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1479485087, now seen corresponding path program 1 times [2023-04-02 02:52:32,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:32,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076939427] [2023-04-02 02:52:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:32,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:32,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:32,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 02:52:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 02:52:33,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:52:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:52:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:52:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:33,038 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:33,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:33,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076939427] [2023-04-02 02:52:33,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076939427] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:33,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:33,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:33,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119101438] [2023-04-02 02:52:33,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:33,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:33,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:33,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:33,040 INFO L87 Difference]: Start difference. First operand 624 states and 965 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:38,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:38,192 INFO L93 Difference]: Finished difference Result 1469 states and 2424 transitions. [2023-04-02 02:52:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:52:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 143 [2023-04-02 02:52:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:38,196 INFO L225 Difference]: With dead ends: 1469 [2023-04-02 02:52:38,196 INFO L226 Difference]: Without dead ends: 918 [2023-04-02 02:52:38,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:52:38,198 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 1599 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 3775 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 4342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 3775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:38,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 398 Invalid, 4342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 3775 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-04-02 02:52:38,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 918 states. [2023-04-02 02:52:38,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 918 to 624. [2023-04-02 02:52:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 624 states, 455 states have (on average 1.5846153846153845) internal successors, (721), 472 states have internal predecessors, (721), 121 states have call successors, (121), 50 states have call predecessors, (121), 47 states have return successors, (118), 113 states have call predecessors, (118), 116 states have call successors, (118) [2023-04-02 02:52:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 960 transitions. [2023-04-02 02:52:38,366 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 960 transitions. Word has length 143 [2023-04-02 02:52:38,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:38,366 INFO L495 AbstractCegarLoop]: Abstraction has 624 states and 960 transitions. [2023-04-02 02:52:38,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:38,367 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 960 transitions. [2023-04-02 02:52:38,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-02 02:52:38,369 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:38,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:38,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-02 02:52:38,369 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:38,370 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:38,370 INFO L85 PathProgramCache]: Analyzing trace with hash 367433216, now seen corresponding path program 1 times [2023-04-02 02:52:38,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:38,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570937201] [2023-04-02 02:52:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:38,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:38,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-04-02 02:52:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-04-02 02:52:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-04-02 02:52:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-04-02 02:52:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:52:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:52:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-04-02 02:52:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:38,780 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:38,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:38,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570937201] [2023-04-02 02:52:38,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570937201] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:38,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:38,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:52:38,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309614428] [2023-04-02 02:52:38,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:38,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:52:38,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:38,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:52:38,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:52:38,781 INFO L87 Difference]: Start difference. First operand 624 states and 960 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:45,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:45,783 INFO L93 Difference]: Finished difference Result 1474 states and 2434 transitions. [2023-04-02 02:52:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:52:45,784 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 143 [2023-04-02 02:52:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:45,788 INFO L225 Difference]: With dead ends: 1474 [2023-04-02 02:52:45,788 INFO L226 Difference]: Without dead ends: 931 [2023-04-02 02:52:45,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:52:45,790 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 2252 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 7964 mSolverCounterSat, 793 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2353 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 8757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 793 IncrementalHoareTripleChecker+Valid, 7964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:45,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2353 Valid, 755 Invalid, 8757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [793 Valid, 7964 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:52:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-04-02 02:52:45,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 627. [2023-04-02 02:52:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 456 states have (on average 1.5833333333333333) internal successors, (722), 475 states have internal predecessors, (722), 122 states have call successors, (122), 50 states have call predecessors, (122), 48 states have return successors, (121), 113 states have call predecessors, (121), 117 states have call successors, (121) [2023-04-02 02:52:45,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 965 transitions. [2023-04-02 02:52:45,949 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 965 transitions. Word has length 143 [2023-04-02 02:52:45,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:45,949 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 965 transitions. [2023-04-02 02:52:45,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 7 states have internal predecessors, (74), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 965 transitions. [2023-04-02 02:52:45,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 02:52:45,951 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:45,951 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:45,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-02 02:52:45,952 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:45,952 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:45,952 INFO L85 PathProgramCache]: Analyzing trace with hash 364667136, now seen corresponding path program 1 times [2023-04-02 02:52:45,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:45,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302637828] [2023-04-02 02:52:45,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:45,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:52:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:52:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:46,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:52:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:52:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:52:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:52:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:52:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:46,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:46,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302637828] [2023-04-02 02:52:46,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302637828] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:46,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:46,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:46,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200153144] [2023-04-02 02:52:46,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:46,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:46,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:46,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:46,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:46,338 INFO L87 Difference]: Start difference. First operand 627 states and 965 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:51,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:51,768 INFO L93 Difference]: Finished difference Result 1475 states and 2431 transitions. [2023-04-02 02:52:51,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-02 02:52:51,768 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 144 [2023-04-02 02:52:51,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:51,772 INFO L225 Difference]: With dead ends: 1475 [2023-04-02 02:52:51,772 INFO L226 Difference]: Without dead ends: 921 [2023-04-02 02:52:51,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:52:51,774 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 1040 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 3967 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 3967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:51,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 402 Invalid, 4321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 3967 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-04-02 02:52:51,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2023-04-02 02:52:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 627. [2023-04-02 02:52:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 456 states have (on average 1.5723684210526316) internal successors, (717), 475 states have internal predecessors, (717), 122 states have call successors, (122), 50 states have call predecessors, (122), 48 states have return successors, (121), 113 states have call predecessors, (121), 117 states have call successors, (121) [2023-04-02 02:52:51,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 960 transitions. [2023-04-02 02:52:51,941 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 960 transitions. Word has length 144 [2023-04-02 02:52:51,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:51,941 INFO L495 AbstractCegarLoop]: Abstraction has 627 states and 960 transitions. [2023-04-02 02:52:51,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2023-04-02 02:52:51,941 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 960 transitions. [2023-04-02 02:52:51,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-02 02:52:51,944 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:51,944 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:51,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-02 02:52:51,944 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:51,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:51,945 INFO L85 PathProgramCache]: Analyzing trace with hash -822462234, now seen corresponding path program 1 times [2023-04-02 02:52:51,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:51,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720221690] [2023-04-02 02:52:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:51,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:51,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:52,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:52,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:52:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:52,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-02 02:52:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-04-02 02:52:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:52:52,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-02 02:52:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-04-02 02:52:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:52:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:52,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:52,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720221690] [2023-04-02 02:52:52,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720221690] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:52,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:52,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:52:52,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149690497] [2023-04-02 02:52:52,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:52,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:52:52,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:52,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:52:52,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:52:52,405 INFO L87 Difference]: Start difference. First operand 627 states and 960 transitions. Second operand has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:59,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:52:59,350 INFO L93 Difference]: Finished difference Result 1490 states and 2460 transitions. [2023-04-02 02:52:59,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:52:59,351 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 144 [2023-04-02 02:52:59,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:52:59,360 INFO L225 Difference]: With dead ends: 1490 [2023-04-02 02:52:59,360 INFO L226 Difference]: Without dead ends: 942 [2023-04-02 02:52:59,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:52:59,362 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 1666 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 7951 mSolverCounterSat, 610 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 8561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 610 IncrementalHoareTripleChecker+Valid, 7951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:52:59,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 820 Invalid, 8561 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [610 Valid, 7951 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-02 02:52:59,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 942 states. [2023-04-02 02:52:59,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 942 to 631. [2023-04-02 02:52:59,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 457 states have (on average 1.5711159737417943) internal successors, (718), 479 states have internal predecessors, (718), 124 states have call successors, (124), 50 states have call predecessors, (124), 49 states have return successors, (125), 113 states have call predecessors, (125), 119 states have call successors, (125) [2023-04-02 02:52:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 967 transitions. [2023-04-02 02:52:59,526 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 967 transitions. Word has length 144 [2023-04-02 02:52:59,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:52:59,526 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 967 transitions. [2023-04-02 02:52:59,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:52:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 967 transitions. [2023-04-02 02:52:59,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 02:52:59,529 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:52:59,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:52:59,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-02 02:52:59,529 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:52:59,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:52:59,529 INFO L85 PathProgramCache]: Analyzing trace with hash -955323324, now seen corresponding path program 1 times [2023-04-02 02:52:59,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:52:59,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586063435] [2023-04-02 02:52:59,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:52:59,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:52:59,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:52:59,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:52:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:52:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:52:59,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:52:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:52:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-02 02:52:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:52:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:59,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:52:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:52:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:52:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:52:59,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:52:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:52:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:52:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:52:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:52:59,913 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:52:59,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:52:59,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586063435] [2023-04-02 02:52:59,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586063435] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:52:59,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:52:59,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-02 02:52:59,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373369698] [2023-04-02 02:52:59,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:52:59,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-02 02:52:59,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:52:59,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-02 02:52:59,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-02 02:52:59,915 INFO L87 Difference]: Start difference. First operand 631 states and 967 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:53:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:05,105 INFO L93 Difference]: Finished difference Result 1516 states and 2483 transitions. [2023-04-02 02:53:05,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 02:53:05,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 145 [2023-04-02 02:53:05,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:05,109 INFO L225 Difference]: With dead ends: 1516 [2023-04-02 02:53:05,109 INFO L226 Difference]: Without dead ends: 908 [2023-04-02 02:53:05,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:05,111 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 2092 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 3731 mSolverCounterSat, 730 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 4461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 730 IncrementalHoareTripleChecker+Valid, 3731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:05,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 387 Invalid, 4461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [730 Valid, 3731 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-04-02 02:53:05,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 908 states. [2023-04-02 02:53:05,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 908 to 618. [2023-04-02 02:53:05,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 448 states have (on average 1.5736607142857142) internal successors, (705), 468 states have internal predecessors, (705), 122 states have call successors, (122), 50 states have call predecessors, (122), 47 states have return successors, (120), 111 states have call predecessors, (120), 117 states have call successors, (120) [2023-04-02 02:53:05,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 947 transitions. [2023-04-02 02:53:05,265 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 947 transitions. Word has length 145 [2023-04-02 02:53:05,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:05,265 INFO L495 AbstractCegarLoop]: Abstraction has 618 states and 947 transitions. [2023-04-02 02:53:05,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (28), 6 states have call predecessors, (28), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-02 02:53:05,265 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 947 transitions. [2023-04-02 02:53:05,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-02 02:53:05,267 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:05,268 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:05,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-02 02:53:05,268 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:05,268 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash 710121786, now seen corresponding path program 1 times [2023-04-02 02:53:05,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:05,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631346077] [2023-04-02 02:53:05,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:05,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:05,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:05,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-02 02:53:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-04-02 02:53:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-04-02 02:53:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:05,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-04-02 02:53:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:53:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:53:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:05,670 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:53:05,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:05,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631346077] [2023-04-02 02:53:05,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631346077] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:05,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:05,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:53:05,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537975264] [2023-04-02 02:53:05,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:05,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:53:05,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:05,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:53:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:53:05,672 INFO L87 Difference]: Start difference. First operand 618 states and 947 transitions. Second operand has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:12,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:12,867 INFO L93 Difference]: Finished difference Result 1472 states and 2435 transitions. [2023-04-02 02:53:12,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:53:12,868 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 145 [2023-04-02 02:53:12,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:12,871 INFO L225 Difference]: With dead ends: 1472 [2023-04-02 02:53:12,871 INFO L226 Difference]: Without dead ends: 923 [2023-04-02 02:53:12,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:53:12,873 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 992 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 8206 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1090 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 8550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 8206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:12,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1090 Valid, 889 Invalid, 8550 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [344 Valid, 8206 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-04-02 02:53:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-04-02 02:53:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 622. [2023-04-02 02:53:13,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 622 states, 449 states have (on average 1.5723830734966593) internal successors, (706), 472 states have internal predecessors, (706), 124 states have call successors, (124), 50 states have call predecessors, (124), 48 states have return successors, (124), 111 states have call predecessors, (124), 119 states have call successors, (124) [2023-04-02 02:53:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 954 transitions. [2023-04-02 02:53:13,054 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 954 transitions. Word has length 145 [2023-04-02 02:53:13,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:13,054 INFO L495 AbstractCegarLoop]: Abstraction has 622 states and 954 transitions. [2023-04-02 02:53:13,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.909090909090909) internal successors, (76), 7 states have internal predecessors, (76), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:13,055 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 954 transitions. [2023-04-02 02:53:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-02 02:53:13,056 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:13,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:13,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-04-02 02:53:13,057 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:13,057 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:13,057 INFO L85 PathProgramCache]: Analyzing trace with hash 504545281, now seen corresponding path program 1 times [2023-04-02 02:53:13,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:13,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312890376] [2023-04-02 02:53:13,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:13,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:53:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-04-02 02:53:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:13,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-04-02 02:53:13,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-04-02 02:53:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-04-02 02:53:13,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-02 02:53:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:13,476 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-02 02:53:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:13,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312890376] [2023-04-02 02:53:13,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312890376] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:13,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:13,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-04-02 02:53:13,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324508558] [2023-04-02 02:53:13,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:13,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-04-02 02:53:13,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:13,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-04-02 02:53:13,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-04-02 02:53:13,480 INFO L87 Difference]: Start difference. First operand 622 states and 954 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:20,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:20,093 INFO L93 Difference]: Finished difference Result 1480 states and 2455 transitions. [2023-04-02 02:53:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-04-02 02:53:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 146 [2023-04-02 02:53:20,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:20,097 INFO L225 Difference]: With dead ends: 1480 [2023-04-02 02:53:20,097 INFO L226 Difference]: Without dead ends: 928 [2023-04-02 02:53:20,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=119, Invalid=481, Unknown=0, NotChecked=0, Total=600 [2023-04-02 02:53:20,099 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 1554 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 7923 mSolverCounterSat, 585 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1652 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 8508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 7923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:20,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1652 Valid, 884 Invalid, 8508 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [585 Valid, 7923 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 02:53:20,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 928 states. [2023-04-02 02:53:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 928 to 626. [2023-04-02 02:53:20,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 450 states have (on average 1.5711111111111111) internal successors, (707), 476 states have internal predecessors, (707), 126 states have call successors, (126), 50 states have call predecessors, (126), 49 states have return successors, (128), 111 states have call predecessors, (128), 121 states have call successors, (128) [2023-04-02 02:53:20,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 961 transitions. [2023-04-02 02:53:20,275 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 961 transitions. Word has length 146 [2023-04-02 02:53:20,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:20,275 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 961 transitions. [2023-04-02 02:53:20,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (28), 6 states have call predecessors, (28), 4 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2023-04-02 02:53:20,276 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 961 transitions. [2023-04-02 02:53:20,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-04-02 02:53:20,277 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:20,277 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:20,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-02 02:53:20,278 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:20,278 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:20,278 INFO L85 PathProgramCache]: Analyzing trace with hash -287398367, now seen corresponding path program 1 times [2023-04-02 02:53:20,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:20,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302501449] [2023-04-02 02:53:20,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:20,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:20,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:20,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:20,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-02 02:53:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-04-02 02:53:20,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-02 02:53:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-04-02 02:53:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-04-02 02:53:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-02 02:53:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:20,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:20,711 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:20,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:20,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302501449] [2023-04-02 02:53:20,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302501449] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:20,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754664044] [2023-04-02 02:53:20,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:20,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:20,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:20,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:20,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-02 02:53:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:21,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:21,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-04-02 02:53:21,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:21,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754664044] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:21,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:21,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:21,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540386391] [2023-04-02 02:53:21,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:21,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:21,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:21,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:21,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:21,233 INFO L87 Difference]: Start difference. First operand 626 states and 961 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:21,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:21,903 INFO L93 Difference]: Finished difference Result 1183 states and 1865 transitions. [2023-04-02 02:53:21,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:21,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 147 [2023-04-02 02:53:21,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:21,906 INFO L225 Difference]: With dead ends: 1183 [2023-04-02 02:53:21,906 INFO L226 Difference]: Without dead ends: 634 [2023-04-02 02:53:21,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:21,908 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 842 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:21,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2225 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:53:21,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-04-02 02:53:22,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2023-04-02 02:53:22,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 457 states have (on average 1.5733041575492341) internal successors, (719), 483 states have internal predecessors, (719), 126 states have call successors, (126), 51 states have call predecessors, (126), 50 states have return successors, (129), 111 states have call predecessors, (129), 121 states have call successors, (129) [2023-04-02 02:53:22,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 974 transitions. [2023-04-02 02:53:22,099 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 974 transitions. Word has length 147 [2023-04-02 02:53:22,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:22,099 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 974 transitions. [2023-04-02 02:53:22,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:22,099 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 974 transitions. [2023-04-02 02:53:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-04-02 02:53:22,101 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:22,101 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:22,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-02 02:53:22,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-04-02 02:53:22,305 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:22,305 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:22,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1769868329, now seen corresponding path program 1 times [2023-04-02 02:53:22,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:22,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363208989] [2023-04-02 02:53:22,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:22,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:22,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:22,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:22,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-04-02 02:53:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-04-02 02:53:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-04-02 02:53:22,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-04-02 02:53:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-04-02 02:53:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-04-02 02:53:22,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 02:53:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:22,754 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:22,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363208989] [2023-04-02 02:53:22,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363208989] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:22,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841591028] [2023-04-02 02:53:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:22,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:22,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:22,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:22,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-02 02:53:23,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:23,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 2317 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:23,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:23,247 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:23,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:23,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841591028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:23,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:23,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:23,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211169325] [2023-04-02 02:53:23,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:23,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:23,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:23,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:23,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:23,250 INFO L87 Difference]: Start difference. First operand 634 states and 974 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:23,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:23,849 INFO L93 Difference]: Finished difference Result 1199 states and 1888 transitions. [2023-04-02 02:53:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:23,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 150 [2023-04-02 02:53:23,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:23,852 INFO L225 Difference]: With dead ends: 1199 [2023-04-02 02:53:23,853 INFO L226 Difference]: Without dead ends: 642 [2023-04-02 02:53:23,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:23,855 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 837 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:23,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 2225 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:23,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-04-02 02:53:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-04-02 02:53:24,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 464 states have (on average 1.5754310344827587) internal successors, (731), 490 states have internal predecessors, (731), 126 states have call successors, (126), 52 states have call predecessors, (126), 51 states have return successors, (130), 111 states have call predecessors, (130), 121 states have call successors, (130) [2023-04-02 02:53:24,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 987 transitions. [2023-04-02 02:53:24,064 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 987 transitions. Word has length 150 [2023-04-02 02:53:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:24,064 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 987 transitions. [2023-04-02 02:53:24,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:24,064 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 987 transitions. [2023-04-02 02:53:24,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-04-02 02:53:24,066 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:24,066 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:24,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-04-02 02:53:24,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-02 02:53:24,274 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:24,274 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:24,275 INFO L85 PathProgramCache]: Analyzing trace with hash -954335643, now seen corresponding path program 1 times [2023-04-02 02:53:24,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:24,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838116321] [2023-04-02 02:53:24,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:24,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:24,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:24,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:24,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:24,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-04-02 02:53:24,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 02:53:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-04-02 02:53:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-02 02:53:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2023-04-02 02:53:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-02 02:53:24,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:24,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:24,729 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:24,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:24,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838116321] [2023-04-02 02:53:24,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838116321] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:24,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571325263] [2023-04-02 02:53:24,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:24,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:24,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:24,731 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:24,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-02 02:53:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:25,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 2320 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:25,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:25,235 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:25,235 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:25,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571325263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:25,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:25,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:25,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369591433] [2023-04-02 02:53:25,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:25,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:25,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:25,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:25,236 INFO L87 Difference]: Start difference. First operand 642 states and 987 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:25,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:25,807 INFO L93 Difference]: Finished difference Result 1215 states and 1911 transitions. [2023-04-02 02:53:25,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:25,809 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 153 [2023-04-02 02:53:25,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:25,812 INFO L225 Difference]: With dead ends: 1215 [2023-04-02 02:53:25,812 INFO L226 Difference]: Without dead ends: 650 [2023-04-02 02:53:25,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 191 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:25,815 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 838 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:25,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 2224 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:25,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-04-02 02:53:25,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2023-04-02 02:53:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 471 states have (on average 1.5774946921443738) internal successors, (743), 497 states have internal predecessors, (743), 126 states have call successors, (126), 53 states have call predecessors, (126), 52 states have return successors, (131), 111 states have call predecessors, (131), 121 states have call successors, (131) [2023-04-02 02:53:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 1000 transitions. [2023-04-02 02:53:25,999 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 1000 transitions. Word has length 153 [2023-04-02 02:53:25,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:25,999 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 1000 transitions. [2023-04-02 02:53:25,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:25,999 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 1000 transitions. [2023-04-02 02:53:26,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-04-02 02:53:26,001 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:26,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:26,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:26,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:26,209 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:26,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash -986972269, now seen corresponding path program 1 times [2023-04-02 02:53:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:26,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116246776] [2023-04-02 02:53:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:26,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:26,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:26,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:26,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-04-02 02:53:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 02:53:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-04-02 02:53:26,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-04-02 02:53:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-04-02 02:53:26,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-04-02 02:53:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-04-02 02:53:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,630 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:53:26,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:26,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116246776] [2023-04-02 02:53:26,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116246776] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:26,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355134294] [2023-04-02 02:53:26,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:26,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:26,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:26,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:26,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-02 02:53:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:26,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-02 02:53:27,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-02 02:53:27,135 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:27,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355134294] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:27,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:27,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2023-04-02 02:53:27,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520596197] [2023-04-02 02:53:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:27,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:27,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:27,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:27,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2023-04-02 02:53:27,137 INFO L87 Difference]: Start difference. First operand 650 states and 1000 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:27,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:27,733 INFO L93 Difference]: Finished difference Result 1231 states and 1934 transitions. [2023-04-02 02:53:27,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-02 02:53:27,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 156 [2023-04-02 02:53:27,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:27,736 INFO L225 Difference]: With dead ends: 1231 [2023-04-02 02:53:27,737 INFO L226 Difference]: Without dead ends: 658 [2023-04-02 02:53:27,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:53:27,739 INFO L413 NwaCegarLoop]: 885 mSDtfsCounter, 846 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:27,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2223 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-02 02:53:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2023-04-02 02:53:27,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2023-04-02 02:53:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 478 states have (on average 1.5794979079497908) internal successors, (755), 504 states have internal predecessors, (755), 126 states have call successors, (126), 54 states have call predecessors, (126), 53 states have return successors, (132), 111 states have call predecessors, (132), 121 states have call successors, (132) [2023-04-02 02:53:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1013 transitions. [2023-04-02 02:53:27,935 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1013 transitions. Word has length 156 [2023-04-02 02:53:27,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:27,935 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 1013 transitions. [2023-04-02 02:53:27,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1013 transitions. [2023-04-02 02:53:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-02 02:53:27,937 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:27,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:27,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:28,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:28,138 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:28,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1296505001, now seen corresponding path program 1 times [2023-04-02 02:53:28,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:28,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116142440] [2023-04-02 02:53:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:28,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:28,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-02 02:53:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-04-02 02:53:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:28,911 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:28,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:28,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116142440] [2023-04-02 02:53:28,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116142440] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:28,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436056250] [2023-04-02 02:53:28,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:28,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:28,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:28,917 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:28,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-02 02:53:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:29,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 2326 conjuncts, 29 conjunts are in the unsatisfiable core [2023-04-02 02:53:29,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:29,425 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:29,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:29,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436056250] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:29,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:29,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15] total 18 [2023-04-02 02:53:29,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015216668] [2023-04-02 02:53:29,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:29,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-02 02:53:29,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-02 02:53:29,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:29,426 INFO L87 Difference]: Start difference. First operand 658 states and 1013 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:30,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:30,138 INFO L93 Difference]: Finished difference Result 1826 states and 2889 transitions. [2023-04-02 02:53:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:30,153 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2023-04-02 02:53:30,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:30,159 INFO L225 Difference]: With dead ends: 1826 [2023-04-02 02:53:30,159 INFO L226 Difference]: Without dead ends: 1245 [2023-04-02 02:53:30,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:30,161 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 823 mSDsluCounter, 2511 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:30,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3470 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-02 02:53:30,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1245 states. [2023-04-02 02:53:30,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1245 to 1236. [2023-04-02 02:53:30,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1236 states, 903 states have (on average 1.5946843853820598) internal successors, (1440), 953 states have internal predecessors, (1440), 232 states have call successors, (232), 95 states have call predecessors, (232), 100 states have return successors, (266), 211 states have call predecessors, (266), 226 states have call successors, (266) [2023-04-02 02:53:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1236 states to 1236 states and 1938 transitions. [2023-04-02 02:53:30,502 INFO L78 Accepts]: Start accepts. Automaton has 1236 states and 1938 transitions. Word has length 159 [2023-04-02 02:53:30,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:30,502 INFO L495 AbstractCegarLoop]: Abstraction has 1236 states and 1938 transitions. [2023-04-02 02:53:30,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 3 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (22), 2 states have call predecessors, (22), 3 states have call successors, (22) [2023-04-02 02:53:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1236 states and 1938 transitions. [2023-04-02 02:53:30,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:53:30,504 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:30,504 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:30,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:30,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:30,705 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:30,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash 765055571, now seen corresponding path program 1 times [2023-04-02 02:53:30,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:30,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168614871] [2023-04-02 02:53:30,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:30,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:31,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:31,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:31,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:53:31,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:31,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,435 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:31,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:31,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168614871] [2023-04-02 02:53:31,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168614871] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:31,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603804961] [2023-04-02 02:53:31,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:31,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:31,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:31,436 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:31,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-02 02:53:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:31,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 2343 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-02 02:53:31,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:31,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:31,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603804961] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:31,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:31,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2023-04-02 02:53:31,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319915615] [2023-04-02 02:53:31,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:31,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:53:31,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:31,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:53:31,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:31,790 INFO L87 Difference]: Start difference. First operand 1236 states and 1938 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:32,311 INFO L93 Difference]: Finished difference Result 2967 states and 4724 transitions. [2023-04-02 02:53:32,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:53:32,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2023-04-02 02:53:32,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:32,319 INFO L225 Difference]: With dead ends: 2967 [2023-04-02 02:53:32,319 INFO L226 Difference]: Without dead ends: 1809 [2023-04-02 02:53:32,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:32,323 INFO L413 NwaCegarLoop]: 1717 mSDtfsCounter, 839 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:32,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 2630 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:53:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2023-04-02 02:53:32,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1801. [2023-04-02 02:53:32,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1320 states have (on average 1.603030303030303) internal successors, (2116), 1390 states have internal predecessors, (2116), 336 states have call successors, (336), 135 states have call predecessors, (336), 144 states have return successors, (395), 311 states have call predecessors, (395), 329 states have call successors, (395) [2023-04-02 02:53:32,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2847 transitions. [2023-04-02 02:53:32,803 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2847 transitions. Word has length 164 [2023-04-02 02:53:32,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:32,804 INFO L495 AbstractCegarLoop]: Abstraction has 1801 states and 2847 transitions. [2023-04-02 02:53:32,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:32,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2847 transitions. [2023-04-02 02:53:32,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:53:32,806 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:32,806 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:32,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:33,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:33,014 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:33,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:33,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1188702293, now seen corresponding path program 1 times [2023-04-02 02:53:33,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:33,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483705742] [2023-04-02 02:53:33,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:33,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:33,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:33,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:33,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:53:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:33,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483705742] [2023-04-02 02:53:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483705742] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [211737468] [2023-04-02 02:53:33,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:33,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:33,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:33,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:33,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-02 02:53:34,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:34,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 2342 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-02 02:53:34,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:34,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:34,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [211737468] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:34,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [15] total 19 [2023-04-02 02:53:34,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901903731] [2023-04-02 02:53:34,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:34,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-02 02:53:34,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:34,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-02 02:53:34,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:34,187 INFO L87 Difference]: Start difference. First operand 1801 states and 2847 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:35,064 INFO L93 Difference]: Finished difference Result 4505 states and 7160 transitions. [2023-04-02 02:53:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-02 02:53:35,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 164 [2023-04-02 02:53:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:35,075 INFO L225 Difference]: With dead ends: 4505 [2023-04-02 02:53:35,076 INFO L226 Difference]: Without dead ends: 2784 [2023-04-02 02:53:35,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:35,085 INFO L413 NwaCegarLoop]: 1014 mSDtfsCounter, 370 mSDsluCounter, 3845 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 4859 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 4859 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-04-02 02:53:35,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2772. [2023-04-02 02:53:35,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2772 states, 2035 states have (on average 1.5754299754299754) internal successors, (3206), 2132 states have internal predecessors, (3206), 498 states have call successors, (498), 215 states have call predecessors, (498), 238 states have return successors, (667), 460 states have call predecessors, (667), 488 states have call successors, (667) [2023-04-02 02:53:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2772 states to 2772 states and 4371 transitions. [2023-04-02 02:53:35,825 INFO L78 Accepts]: Start accepts. Automaton has 2772 states and 4371 transitions. Word has length 164 [2023-04-02 02:53:35,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:35,825 INFO L495 AbstractCegarLoop]: Abstraction has 2772 states and 4371 transitions. [2023-04-02 02:53:35,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 5 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-02 02:53:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2772 states and 4371 transitions. [2023-04-02 02:53:35,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-02 02:53:35,828 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:35,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:35,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:36,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:36,041 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:36,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:36,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1215767895, now seen corresponding path program 1 times [2023-04-02 02:53:36,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:36,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651268160] [2023-04-02 02:53:36,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:36,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:36,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:36,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:36,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:36,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-04-02 02:53:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:36,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-02 02:53:36,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:36,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-04-02 02:53:36,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:36,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-04-02 02:53:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-02 02:53:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:36,723 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:36,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651268160] [2023-04-02 02:53:36,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651268160] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:36,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608940943] [2023-04-02 02:53:36,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:36,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:36,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:36,725 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:36,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-02 02:53:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:37,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 2339 conjuncts, 23 conjunts are in the unsatisfiable core [2023-04-02 02:53:37,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-02 02:53:37,137 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:37,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608940943] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:37,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:37,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15] total 16 [2023-04-02 02:53:37,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062181699] [2023-04-02 02:53:37,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:37,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 02:53:37,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:37,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 02:53:37,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:37,139 INFO L87 Difference]: Start difference. First operand 2772 states and 4371 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 02:53:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:37,839 INFO L93 Difference]: Finished difference Result 5094 states and 7994 transitions. [2023-04-02 02:53:37,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-02 02:53:37,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 164 [2023-04-02 02:53:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:37,849 INFO L225 Difference]: With dead ends: 5094 [2023-04-02 02:53:37,849 INFO L226 Difference]: Without dead ends: 2402 [2023-04-02 02:53:37,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 212 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2023-04-02 02:53:37,857 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 611 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:37,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1424 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 02:53:37,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-04-02 02:53:38,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-04-02 02:53:38,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1743 states have (on average 1.5530694205393) internal successors, (2707), 1831 states have internal predecessors, (2707), 436 states have call successors, (436), 201 states have call predecessors, (436), 222 states have return successors, (562), 405 states have call predecessors, (562), 426 states have call successors, (562) [2023-04-02 02:53:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3705 transitions. [2023-04-02 02:53:38,514 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3705 transitions. Word has length 164 [2023-04-02 02:53:38,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:38,514 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3705 transitions. [2023-04-02 02:53:38,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) [2023-04-02 02:53:38,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3705 transitions. [2023-04-02 02:53:38,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-02 02:53:38,516 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:38,517 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:38,527 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 02:53:38,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-04-02 02:53:38,717 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:38,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:38,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1499227699, now seen corresponding path program 1 times [2023-04-02 02:53:38,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:38,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333346597] [2023-04-02 02:53:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:39,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:39,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:39,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-02 02:53:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-04-02 02:53:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-04-02 02:53:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-04-02 02:53:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-04-02 02:53:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:53:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:39,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2023-04-02 02:53:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:53:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:53:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,507 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-04-02 02:53:39,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333346597] [2023-04-02 02:53:39,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333346597] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:39,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889591217] [2023-04-02 02:53:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:39,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:39,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:39,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:39,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-02 02:53:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:39,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:39,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:39,883 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-02 02:53:39,883 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:39,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889591217] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:39,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:39,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:39,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5092038] [2023-04-02 02:53:39,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:39,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:39,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:39,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:39,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:39,885 INFO L87 Difference]: Start difference. First operand 2402 states and 3705 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:40,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:40,608 INFO L93 Difference]: Finished difference Result 4841 states and 7554 transitions. [2023-04-02 02:53:40,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:40,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 192 [2023-04-02 02:53:40,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:40,620 INFO L225 Difference]: With dead ends: 4841 [2023-04-02 02:53:40,620 INFO L226 Difference]: Without dead ends: 2519 [2023-04-02 02:53:40,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 263 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:40,630 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 213 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:40,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2523 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2023-04-02 02:53:41,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2023-04-02 02:53:41,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 1857 states have (on average 1.5756596661281637) internal successors, (2926), 1945 states have internal predecessors, (2926), 436 states have call successors, (436), 204 states have call predecessors, (436), 225 states have return successors, (562), 405 states have call predecessors, (562), 426 states have call successors, (562) [2023-04-02 02:53:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3924 transitions. [2023-04-02 02:53:41,331 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3924 transitions. Word has length 192 [2023-04-02 02:53:41,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:41,332 INFO L495 AbstractCegarLoop]: Abstraction has 2519 states and 3924 transitions. [2023-04-02 02:53:41,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:41,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3924 transitions. [2023-04-02 02:53:41,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2023-04-02 02:53:41,335 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:41,335 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:41,342 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-04-02 02:53:41,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-04-02 02:53:41,536 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:41,536 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:41,536 INFO L85 PathProgramCache]: Analyzing trace with hash 486141405, now seen corresponding path program 1 times [2023-04-02 02:53:41,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:41,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776125649] [2023-04-02 02:53:41,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:41,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:41,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:42,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:42,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:42,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:42,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-04-02 02:53:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-04-02 02:53:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-04-02 02:53:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-04-02 02:53:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-02 02:53:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2023-04-02 02:53:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2023-04-02 02:53:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2023-04-02 02:53:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2023-04-02 02:53:42,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:42,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776125649] [2023-04-02 02:53:42,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776125649] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:42,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263022170] [2023-04-02 02:53:42,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:42,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:42,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:42,408 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:42,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-02 02:53:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:42,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 2650 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:42,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-04-02 02:53:42,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:42,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263022170] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:42,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:42,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:42,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827307572] [2023-04-02 02:53:42,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:42,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:42,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:42,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:42,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:42,813 INFO L87 Difference]: Start difference. First operand 2519 states and 3924 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:43,577 INFO L93 Difference]: Finished difference Result 5075 states and 7989 transitions. [2023-04-02 02:53:43,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:43,577 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 197 [2023-04-02 02:53:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:43,592 INFO L225 Difference]: With dead ends: 5075 [2023-04-02 02:53:43,592 INFO L226 Difference]: Without dead ends: 2636 [2023-04-02 02:53:43,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 250 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:43,597 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 211 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:43,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2523 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:43,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2636 states. [2023-04-02 02:53:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2636 to 2636. [2023-04-02 02:53:44,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 1971 states have (on average 1.595636732623034) internal successors, (3145), 2059 states have internal predecessors, (3145), 436 states have call successors, (436), 207 states have call predecessors, (436), 228 states have return successors, (562), 405 states have call predecessors, (562), 426 states have call successors, (562) [2023-04-02 02:53:44,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 4143 transitions. [2023-04-02 02:53:44,257 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 4143 transitions. Word has length 197 [2023-04-02 02:53:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:44,258 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 4143 transitions. [2023-04-02 02:53:44,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 4143 transitions. [2023-04-02 02:53:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-02 02:53:44,261 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:44,261 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:44,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:44,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-04-02 02:53:44,470 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:44,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:44,470 INFO L85 PathProgramCache]: Analyzing trace with hash -509109107, now seen corresponding path program 1 times [2023-04-02 02:53:44,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:44,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819755385] [2023-04-02 02:53:44,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:44,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:44,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:44,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:44,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:45,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-04-02 02:53:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-02 02:53:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-04-02 02:53:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2023-04-02 02:53:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2023-04-02 02:53:45,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-04-02 02:53:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-02 02:53:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2023-04-02 02:53:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,305 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-02 02:53:45,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:45,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819755385] [2023-04-02 02:53:45,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819755385] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:45,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490447083] [2023-04-02 02:53:45,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:45,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:45,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:45,306 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:45,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-02 02:53:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:45,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:45,672 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:45,712 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-04-02 02:53:45,712 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:45,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490447083] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:45,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:45,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:45,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879389589] [2023-04-02 02:53:45,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:45,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:45,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:45,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:45,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:45,715 INFO L87 Difference]: Start difference. First operand 2636 states and 4143 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:46,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:46,451 INFO L93 Difference]: Finished difference Result 5309 states and 8424 transitions. [2023-04-02 02:53:46,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:46,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 201 [2023-04-02 02:53:46,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:46,473 INFO L225 Difference]: With dead ends: 5309 [2023-04-02 02:53:46,473 INFO L226 Difference]: Without dead ends: 2753 [2023-04-02 02:53:46,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 254 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:46,479 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 209 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:46,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2523 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:46,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2023-04-02 02:53:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 2753. [2023-04-02 02:53:47,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2753 states, 2085 states have (on average 1.6134292565947241) internal successors, (3364), 2173 states have internal predecessors, (3364), 436 states have call successors, (436), 210 states have call predecessors, (436), 231 states have return successors, (562), 405 states have call predecessors, (562), 426 states have call successors, (562) [2023-04-02 02:53:47,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2753 states to 2753 states and 4362 transitions. [2023-04-02 02:53:47,161 INFO L78 Accepts]: Start accepts. Automaton has 2753 states and 4362 transitions. Word has length 201 [2023-04-02 02:53:47,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:47,161 INFO L495 AbstractCegarLoop]: Abstraction has 2753 states and 4362 transitions. [2023-04-02 02:53:47,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:47,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2753 states and 4362 transitions. [2023-04-02 02:53:47,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-02 02:53:47,165 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:47,165 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:47,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:47,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-04-02 02:53:47,374 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:47,374 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:47,374 INFO L85 PathProgramCache]: Analyzing trace with hash -910561069, now seen corresponding path program 1 times [2023-04-02 02:53:47,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:47,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419739361] [2023-04-02 02:53:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:47,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:47,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:47,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:47,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:47,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:48,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:53:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-04-02 02:53:48,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-02 02:53:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-04-02 02:53:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-02 02:53:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:53:48,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2023-04-02 02:53:48,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2023-04-02 02:53:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-04-02 02:53:48,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:48,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419739361] [2023-04-02 02:53:48,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419739361] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:48,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410423872] [2023-04-02 02:53:48,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:48,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:48,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:48,207 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:48,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-02 02:53:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:48,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 2657 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-02 02:53:48,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-02 02:53:48,618 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:48,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410423872] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:48,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2023-04-02 02:53:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390607299] [2023-04-02 02:53:48,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:48,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 02:53:48,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:48,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 02:53:48,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2023-04-02 02:53:48,620 INFO L87 Difference]: Start difference. First operand 2753 states and 4362 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:49,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:49,419 INFO L93 Difference]: Finished difference Result 5543 states and 8859 transitions. [2023-04-02 02:53:49,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-02 02:53:49,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 204 [2023-04-02 02:53:49,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:49,429 INFO L225 Difference]: With dead ends: 5543 [2023-04-02 02:53:49,429 INFO L226 Difference]: Without dead ends: 2870 [2023-04-02 02:53:49,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 257 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2023-04-02 02:53:49,435 INFO L413 NwaCegarLoop]: 849 mSDtfsCounter, 207 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:49,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [207 Valid, 2523 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-02 02:53:49,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2870 states. [2023-04-02 02:53:50,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2870 to 2870. [2023-04-02 02:53:50,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2870 states, 2199 states have (on average 1.6293769895407004) internal successors, (3583), 2287 states have internal predecessors, (3583), 436 states have call successors, (436), 213 states have call predecessors, (436), 234 states have return successors, (562), 405 states have call predecessors, (562), 426 states have call successors, (562) [2023-04-02 02:53:50,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2870 states to 2870 states and 4581 transitions. [2023-04-02 02:53:50,073 INFO L78 Accepts]: Start accepts. Automaton has 2870 states and 4581 transitions. Word has length 204 [2023-04-02 02:53:50,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:50,074 INFO L495 AbstractCegarLoop]: Abstraction has 2870 states and 4581 transitions. [2023-04-02 02:53:50,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-02 02:53:50,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2870 states and 4581 transitions. [2023-04-02 02:53:50,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2023-04-02 02:53:50,077 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:50,078 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 02:53:50,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:50,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-04-02 02:53:50,286 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:50,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash 713461057, now seen corresponding path program 1 times [2023-04-02 02:53:50,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:50,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739505597] [2023-04-02 02:53:50,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:50,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:50,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-04-02 02:53:50,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:50,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:50,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-04-02 02:53:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:53:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:53:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:53:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2023-04-02 02:53:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2023-04-02 02:53:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-02 02:53:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-02 02:53:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2023-04-02 02:53:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,107 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-04-02 02:53:51,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:51,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739505597] [2023-04-02 02:53:51,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739505597] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:53:51,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604482720] [2023-04-02 02:53:51,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:51,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:53:51,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:53:51,109 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-02 02:53:51,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-02 02:53:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:51,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 2653 conjuncts, 57 conjunts are in the unsatisfiable core [2023-04-02 02:53:51,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:53:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2023-04-02 02:53:51,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-02 02:53:51,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604482720] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:51,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-02 02:53:51,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [16] total 21 [2023-04-02 02:53:51,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678855746] [2023-04-02 02:53:51,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:51,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 02:53:51,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:51,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 02:53:51,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2023-04-02 02:53:51,707 INFO L87 Difference]: Start difference. First operand 2870 states and 4581 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:53:55,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:53:55,394 INFO L93 Difference]: Finished difference Result 8736 states and 14309 transitions. [2023-04-02 02:53:55,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 02:53:55,395 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) Word has length 206 [2023-04-02 02:53:55,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:53:55,413 INFO L225 Difference]: With dead ends: 8736 [2023-04-02 02:53:55,413 INFO L226 Difference]: Without dead ends: 5420 [2023-04-02 02:53:55,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2023-04-02 02:53:55,422 INFO L413 NwaCegarLoop]: 314 mSDtfsCounter, 2002 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 4582 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 5132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 4582 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-02 02:53:55,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 1886 Invalid, 5132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 4582 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-02 02:53:55,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2023-04-02 02:53:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5360. [2023-04-02 02:53:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 4078 states have (on average 1.6397743992153015) internal successors, (6687), 4245 states have internal predecessors, (6687), 848 states have call successors, (848), 366 states have call predecessors, (848), 433 states have return successors, (1175), 835 states have call predecessors, (1175), 838 states have call successors, (1175) [2023-04-02 02:53:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 8710 transitions. [2023-04-02 02:53:56,765 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 8710 transitions. Word has length 206 [2023-04-02 02:53:56,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:53:56,765 INFO L495 AbstractCegarLoop]: Abstraction has 5360 states and 8710 transitions. [2023-04-02 02:53:56,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 7 states have internal predecessors, (117), 4 states have call successors, (33), 4 states have call predecessors, (33), 6 states have return successors, (27), 5 states have call predecessors, (27), 4 states have call successors, (27) [2023-04-02 02:53:56,765 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 8710 transitions. [2023-04-02 02:53:56,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2023-04-02 02:53:56,773 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:53:56,773 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 02:53:56,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-02 02:53:56,973 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,SelfDestructingSolverStorable28 [2023-04-02 02:53:56,974 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:53:56,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:53:56,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1070871869, now seen corresponding path program 1 times [2023-04-02 02:53:56,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:53:56,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144404274] [2023-04-02 02:53:56,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:53:56,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:53:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:53:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:57,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:53:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:53:57,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:53:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:53:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:53:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:53:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:53:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-02 02:53:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:53:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-04-02 02:53:57,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:53:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:53:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:53:57,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:53:57,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:53:57,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:53:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2023-04-02 02:53:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2023-04-02 02:53:57,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:53:57,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2023-04-02 02:53:57,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2023-04-02 02:53:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-04-02 02:53:57,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:53:57,686 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-04-02 02:53:57,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:53:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144404274] [2023-04-02 02:53:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144404274] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:53:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:53:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-04-02 02:53:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026868321] [2023-04-02 02:53:57,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:53:57,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-04-02 02:53:57,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:53:57,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-04-02 02:53:57,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-04-02 02:53:57,688 INFO L87 Difference]: Start difference. First operand 5360 states and 8710 transitions. Second operand has 15 states, 13 states have (on average 10.384615384615385) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2023-04-02 02:54:11,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:54:11,944 INFO L93 Difference]: Finished difference Result 14123 states and 25908 transitions. [2023-04-02 02:54:11,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 02:54:11,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 10.384615384615385) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) Word has length 298 [2023-04-02 02:54:11,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:54:11,987 INFO L225 Difference]: With dead ends: 14123 [2023-04-02 02:54:11,987 INFO L226 Difference]: Without dead ends: 8826 [2023-04-02 02:54:12,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2023-04-02 02:54:12,001 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 1463 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 9546 mSolverCounterSat, 705 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 10251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 705 IncrementalHoareTripleChecker+Valid, 9546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-04-02 02:54:12,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 1018 Invalid, 10251 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [705 Valid, 9546 Invalid, 0 Unknown, 0 Unchecked, 8.5s Time] [2023-04-02 02:54:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8826 states. [2023-04-02 02:54:13,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8826 to 5343. [2023-04-02 02:54:13,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5343 states, 4054 states have (on average 1.635421805624075) internal successors, (6630), 4228 states have internal predecessors, (6630), 855 states have call successors, (855), 366 states have call predecessors, (855), 433 states have return successors, (1155), 835 states have call predecessors, (1155), 845 states have call successors, (1155) [2023-04-02 02:54:13,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5343 states to 5343 states and 8640 transitions. [2023-04-02 02:54:13,739 INFO L78 Accepts]: Start accepts. Automaton has 5343 states and 8640 transitions. Word has length 298 [2023-04-02 02:54:13,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:54:13,739 INFO L495 AbstractCegarLoop]: Abstraction has 5343 states and 8640 transitions. [2023-04-02 02:54:13,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 10.384615384615385) internal successors, (135), 7 states have internal predecessors, (135), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 3 states have call predecessors, (35), 4 states have call successors, (35) [2023-04-02 02:54:13,740 INFO L276 IsEmpty]: Start isEmpty. Operand 5343 states and 8640 transitions. [2023-04-02 02:54:13,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-04-02 02:54:13,750 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:54:13,751 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2023-04-02 02:54:13,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-04-02 02:54:13,751 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:54:13,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:54:13,751 INFO L85 PathProgramCache]: Analyzing trace with hash -157539273, now seen corresponding path program 1 times [2023-04-02 02:54:13,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:54:13,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547671527] [2023-04-02 02:54:13,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:13,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:54:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:13,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:54:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:54:14,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:14,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:54:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:54:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:14,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:54:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:54:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:54:14,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-04-02 02:54:14,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-04-02 02:54:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:54:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:54:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:54:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:54:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2023-04-02 02:54:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-04-02 02:54:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2023-04-02 02:54:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2023-04-02 02:54:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2023-04-02 02:54:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:14,506 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2023-04-02 02:54:14,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:54:14,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547671527] [2023-04-02 02:54:14,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547671527] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 02:54:14,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 02:54:14,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2023-04-02 02:54:14,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051685746] [2023-04-02 02:54:14,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 02:54:14,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-02 02:54:14,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:54:14,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-02 02:54:14,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-04-02 02:54:14,508 INFO L87 Difference]: Start difference. First operand 5343 states and 8640 transitions. Second operand has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2023-04-02 02:54:28,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 02:54:28,178 INFO L93 Difference]: Finished difference Result 13546 states and 24150 transitions. [2023-04-02 02:54:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-02 02:54:28,178 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) Word has length 304 [2023-04-02 02:54:28,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 02:54:28,222 INFO L225 Difference]: With dead ends: 13546 [2023-04-02 02:54:28,223 INFO L226 Difference]: Without dead ends: 7930 [2023-04-02 02:54:28,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=272, Invalid=784, Unknown=0, NotChecked=0, Total=1056 [2023-04-02 02:54:28,239 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 1892 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 8102 mSolverCounterSat, 899 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 1158 SdHoareTripleChecker+Invalid, 9001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 899 IncrementalHoareTripleChecker+Valid, 8102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-04-02 02:54:28,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 1158 Invalid, 9001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [899 Valid, 8102 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2023-04-02 02:54:28,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7930 states. [2023-04-02 02:54:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7930 to 3253. [2023-04-02 02:54:29,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 2543 states have (on average 1.6535587888320882) internal successors, (4205), 2611 states have internal predecessors, (4205), 466 states have call successors, (466), 233 states have call predecessors, (466), 243 states have return successors, (557), 456 states have call predecessors, (557), 458 states have call successors, (557) [2023-04-02 02:54:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5228 transitions. [2023-04-02 02:54:29,450 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5228 transitions. Word has length 304 [2023-04-02 02:54:29,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 02:54:29,451 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5228 transitions. [2023-04-02 02:54:29,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.846153846153847) internal successors, (141), 6 states have internal predecessors, (141), 4 states have call successors, (42), 9 states have call predecessors, (42), 4 states have return successors, (35), 4 states have call predecessors, (35), 4 states have call successors, (35) [2023-04-02 02:54:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5228 transitions. [2023-04-02 02:54:29,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2023-04-02 02:54:29,462 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 02:54:29,463 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-04-02 02:54:29,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-04-02 02:54:29,463 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 02:54:29,463 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 02:54:29,464 INFO L85 PathProgramCache]: Analyzing trace with hash 726779303, now seen corresponding path program 1 times [2023-04-02 02:54:29,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 02:54:29,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949537327] [2023-04-02 02:54:29,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:29,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 02:54:29,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:54:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 02:54:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-04-02 02:54:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-02 02:54:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-04-02 02:54:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 02:54:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:54:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:54:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:54:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-04-02 02:54:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:54:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:54:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:54:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-04-02 02:54:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-02 02:54:30,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-04-02 02:54:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 02:54:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-04-02 02:54:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2023-04-02 02:54:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:54:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-02 02:54:30,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2023-04-02 02:54:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:30,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 02:54:30,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 402 [2023-04-02 02:54:31,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:31,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-04-02 02:54:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-04-02 02:54:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-04-02 02:54:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-04-02 02:54:31,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-04-02 02:54:31,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-04-02 02:54:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2023-04-02 02:54:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2023-04-02 02:54:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 02:54:31,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2023-04-02 02:54:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 501 [2023-04-02 02:54:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 507 [2023-04-02 02:54:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 32 proven. 143 refuted. 0 times theorem prover too weak. 906 trivial. 0 not checked. [2023-04-02 02:54:31,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 02:54:31,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949537327] [2023-04-02 02:54:31,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949537327] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-02 02:54:31,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73348637] [2023-04-02 02:54:31,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 02:54:31,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-02 02:54:31,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 02:54:31,086 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 02:54:31,099 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 02:54:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 02:54:31,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 4537 conjuncts, 33 conjunts are in the unsatisfiable core [2023-04-02 02:54:31,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-02 02:54:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 343 proven. 40 refuted. 0 times theorem prover too weak. 698 trivial. 0 not checked. [2023-04-02 02:54:32,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-02 02:54:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 23 proven. 82 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2023-04-02 02:54:33,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73348637] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-02 02:54:33,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-02 02:54:33,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 15] total 41 [2023-04-02 02:54:33,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101721402] [2023-04-02 02:54:33,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-02 02:54:33,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2023-04-02 02:54:33,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 02:54:33,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2023-04-02 02:54:33,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1438, Unknown=0, NotChecked=0, Total=1640 [2023-04-02 02:54:33,628 INFO L87 Difference]: Start difference. First operand 3253 states and 5228 transitions. Second operand has 41 states, 37 states have (on average 11.027027027027026) internal successors, (408), 29 states have internal predecessors, (408), 23 states have call successors, (138), 16 states have call predecessors, (138), 19 states have return successors, (128), 24 states have call predecessors, (128), 23 states have call successors, (128)