./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e942074e046d4b6eec963a95d600daf33500a37aba1da700aae37a309fea4cda --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:44:27,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:44:27,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:44:28,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:44:28,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:44:28,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:44:28,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:44:28,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:44:28,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:44:28,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:44:28,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:44:28,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:44:28,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:44:28,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:44:28,015 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:44:28,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:44:28,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:44:28,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:44:28,021 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:44:28,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:44:28,026 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:44:28,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:44:28,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:44:28,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:44:28,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:44:28,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:44:28,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:44:28,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:44:28,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:44:28,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:44:28,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:44:28,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:44:28,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:44:28,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:44:28,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:44:28,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:44:28,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:44:28,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:44:28,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:44:28,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:44:28,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:44:28,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:44:28,043 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:44:28,064 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:44:28,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:44:28,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:44:28,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:44:28,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:44:28,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:44:28,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:44:28,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:44:28,067 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:44:28,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:44:28,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:44:28,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:44:28,069 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:44:28,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:44:28,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:44:28,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:44:28,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:44:28,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:44:28,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:44:28,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:44:28,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:44:28,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:44:28,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:44:28,071 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:44:28,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:44:28,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:44:28,071 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e942074e046d4b6eec963a95d600daf33500a37aba1da700aae37a309fea4cda [2022-07-12 05:44:28,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:44:28,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:44:28,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:44:28,275 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:44:28,275 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:44:28,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c [2022-07-12 05:44:28,312 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d339ca/dbc7dd49ee7343988ec2941125f5ad36/FLAG2878cf015 [2022-07-12 05:44:28,792 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:44:28,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c [2022-07-12 05:44:28,806 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d339ca/dbc7dd49ee7343988ec2941125f5ad36/FLAG2878cf015 [2022-07-12 05:44:29,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563d339ca/dbc7dd49ee7343988ec2941125f5ad36 [2022-07-12 05:44:29,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:44:29,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:44:29,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:44:29,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:44:29,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:44:29,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ca7f203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29, skipping insertion in model container [2022-07-12 05:44:29,161 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:44:29,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:44:29,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c[63703,63716] [2022-07-12 05:44:29,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:44:29,659 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:44:29,705 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product24.cil.c[63703,63716] [2022-07-12 05:44:29,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:44:29,734 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:44:29,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29 WrapperNode [2022-07-12 05:44:29,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:44:29,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:44:29,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:44:29,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:44:29,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,860 INFO L137 Inliner]: procedures = 98, calls = 353, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 937 [2022-07-12 05:44:29,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:44:29,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:44:29,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:44:29,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:44:29,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:44:29,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:44:29,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:44:29,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:44:29,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (1/1) ... [2022-07-12 05:44:29,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:44:30,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:44:30,029 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) [2022-07-12 05:44:30,045 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 [2022-07-12 05:44:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-12 05:44:30,085 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-12 05:44:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:44:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:44:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:44:30,086 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:44:30,086 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:44:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:44:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:44:30,089 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:44:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:44:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:44:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:44:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:44:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-12 05:44:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-12 05:44:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:44:30,090 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:44:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:44:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:44:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:44:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-12 05:44:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-12 05:44:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-12 05:44:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-12 05:44:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:44:30,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:44:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:44:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:44:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:44:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:44:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-12 05:44:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-12 05:44:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-12 05:44:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-12 05:44:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:44:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:44:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:44:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:44:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:44:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:44:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:44:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:44:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:44:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:44:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:44:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:44:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:44:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:44:30,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:44:30,094 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2022-07-12 05:44:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2022-07-12 05:44:30,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:44:30,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:44:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:44:30,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:44:30,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2022-07-12 05:44:30,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2022-07-12 05:44:30,263 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:44:30,264 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:44:31,084 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:44:31,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:44:31,097 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:44:31,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:44:31 BoogieIcfgContainer [2022-07-12 05:44:31,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:44:31,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:44:31,102 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:44:31,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:44:31,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:44:29" (1/3) ... [2022-07-12 05:44:31,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd28f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:44:31, skipping insertion in model container [2022-07-12 05:44:31,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:44:29" (2/3) ... [2022-07-12 05:44:31,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bd28f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:44:31, skipping insertion in model container [2022-07-12 05:44:31,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:44:31" (3/3) ... [2022-07-12 05:44:31,107 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product24.cil.c [2022-07-12 05:44:31,117 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:44:31,117 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:44:31,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:44:31,192 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@506b7991, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@19f5d96a [2022-07-12 05:44:31,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:44:31,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 596 states, 462 states have (on average 1.6753246753246753) internal successors, (774), 485 states have internal predecessors, (774), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2022-07-12 05:44:31,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-07-12 05:44:31,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:31,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:31,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:31,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:31,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1390945328, now seen corresponding path program 1 times [2022-07-12 05:44:31,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:31,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112615017] [2022-07-12 05:44:31,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:31,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:31,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:31,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:31,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:31,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:31,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:44:31,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:32,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-12 05:44:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:32,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:32,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:32,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:32,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:32,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:32,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112615017] [2022-07-12 05:44:32,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112615017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:32,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:32,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:32,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912293918] [2022-07-12 05:44:32,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:32,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:32,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:32,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:32,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:32,101 INFO L87 Difference]: Start difference. First operand has 596 states, 462 states have (on average 1.6753246753246753) internal successors, (774), 485 states have internal predecessors, (774), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:36,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:36,283 INFO L93 Difference]: Finished difference Result 1335 states and 2237 transitions. [2022-07-12 05:44:36,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:44:36,286 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-07-12 05:44:36,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:36,301 INFO L225 Difference]: With dead ends: 1335 [2022-07-12 05:44:36,302 INFO L226 Difference]: Without dead ends: 751 [2022-07-12 05:44:36,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:44:36,318 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 704 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 2421 mSolverCounterSat, 149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 2570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 2421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:36,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1768 Invalid, 2570 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [149 Valid, 2421 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:44:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-07-12 05:44:36,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 588. [2022-07-12 05:44:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.6710526315789473) internal successors, (762), 477 states have internal predecessors, (762), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:44:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 967 transitions. [2022-07-12 05:44:36,416 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 967 transitions. Word has length 60 [2022-07-12 05:44:36,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:36,416 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 967 transitions. [2022-07-12 05:44:36,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:36,417 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 967 transitions. [2022-07-12 05:44:36,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-12 05:44:36,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:36,420 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:36,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:44:36,420 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash -169141434, now seen corresponding path program 1 times [2022-07-12 05:44:36,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:36,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586976521] [2022-07-12 05:44:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 05:44:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:36,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:36,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:36,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586976521] [2022-07-12 05:44:36,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586976521] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:36,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:36,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:36,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320274281] [2022-07-12 05:44:36,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:36,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:36,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:36,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:36,670 INFO L87 Difference]: Start difference. First operand 588 states and 967 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:40,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:40,816 INFO L93 Difference]: Finished difference Result 1321 states and 2203 transitions. [2022-07-12 05:44:40,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:44:40,816 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2022-07-12 05:44:40,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:40,821 INFO L225 Difference]: With dead ends: 1321 [2022-07-12 05:44:40,821 INFO L226 Difference]: Without dead ends: 751 [2022-07-12 05:44:40,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:44:40,824 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 1171 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:40,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1262 Valid, 1725 Invalid, 2546 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [313 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:44:40,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-07-12 05:44:40,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 588. [2022-07-12 05:44:40,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.668859649122807) internal successors, (761), 477 states have internal predecessors, (761), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:44:40,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 966 transitions. [2022-07-12 05:44:40,863 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 966 transitions. Word has length 63 [2022-07-12 05:44:40,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:40,864 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 966 transitions. [2022-07-12 05:44:40,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 966 transitions. [2022-07-12 05:44:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-07-12 05:44:40,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:40,865 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:40,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:44:40,866 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:40,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:40,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1831827845, now seen corresponding path program 1 times [2022-07-12 05:44:40,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:40,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465667744] [2022-07-12 05:44:40,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:40,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:40,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:40,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:40,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:40,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 05:44:41,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:41,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:41,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:41,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465667744] [2022-07-12 05:44:41,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465667744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:41,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:41,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106483337] [2022-07-12 05:44:41,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:41,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:41,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:41,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:41,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:41,113 INFO L87 Difference]: Start difference. First operand 588 states and 966 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:45,037 INFO L93 Difference]: Finished difference Result 1321 states and 2202 transitions. [2022-07-12 05:44:45,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:44:45,038 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2022-07-12 05:44:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:45,042 INFO L225 Difference]: With dead ends: 1321 [2022-07-12 05:44:45,042 INFO L226 Difference]: Without dead ends: 751 [2022-07-12 05:44:45,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:44:45,045 INFO L413 NwaCegarLoop]: 879 mSDtfsCounter, 698 mSDsluCounter, 840 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:45,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1719 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:44:45,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-07-12 05:44:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 588. [2022-07-12 05:44:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.6666666666666667) internal successors, (760), 477 states have internal predecessors, (760), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:44:45,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 965 transitions. [2022-07-12 05:44:45,096 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 965 transitions. Word has length 64 [2022-07-12 05:44:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:45,096 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 965 transitions. [2022-07-12 05:44:45,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:45,096 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 965 transitions. [2022-07-12 05:44:45,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-07-12 05:44:45,100 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:45,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:45,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:44:45,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:45,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1497307746, now seen corresponding path program 1 times [2022-07-12 05:44:45,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:45,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744073369] [2022-07-12 05:44:45,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:45,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-12 05:44:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-12 05:44:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:45,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:45,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:45,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:45,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744073369] [2022-07-12 05:44:45,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744073369] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:45,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:45,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:45,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120970792] [2022-07-12 05:44:45,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:45,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:45,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:45,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:45,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:45,452 INFO L87 Difference]: Start difference. First operand 588 states and 965 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:48,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:48,979 INFO L93 Difference]: Finished difference Result 1321 states and 2201 transitions. [2022-07-12 05:44:48,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:44:48,979 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 65 [2022-07-12 05:44:48,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:48,983 INFO L225 Difference]: With dead ends: 1321 [2022-07-12 05:44:48,983 INFO L226 Difference]: Without dead ends: 751 [2022-07-12 05:44:48,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:44:48,986 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 695 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:48,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1733 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:44:48,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-07-12 05:44:49,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 588. [2022-07-12 05:44:49,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.6644736842105263) internal successors, (759), 477 states have internal predecessors, (759), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:44:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 964 transitions. [2022-07-12 05:44:49,020 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 964 transitions. Word has length 65 [2022-07-12 05:44:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:49,020 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 964 transitions. [2022-07-12 05:44:49,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:49,021 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 964 transitions. [2022-07-12 05:44:49,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-12 05:44:49,023 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:49,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:49,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:44:49,024 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:49,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:49,024 INFO L85 PathProgramCache]: Analyzing trace with hash 659135447, now seen corresponding path program 1 times [2022-07-12 05:44:49,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:49,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980741462] [2022-07-12 05:44:49,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:49,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-12 05:44:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-12 05:44:49,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:49,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:49,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:49,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:49,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:49,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980741462] [2022-07-12 05:44:49,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980741462] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:49,340 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:49,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:49,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491407015] [2022-07-12 05:44:49,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:49,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:49,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:49,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:49,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:49,343 INFO L87 Difference]: Start difference. First operand 588 states and 964 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:52,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:52,937 INFO L93 Difference]: Finished difference Result 1321 states and 2200 transitions. [2022-07-12 05:44:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:44:52,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-07-12 05:44:52,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:52,942 INFO L225 Difference]: With dead ends: 1321 [2022-07-12 05:44:52,942 INFO L226 Difference]: Without dead ends: 751 [2022-07-12 05:44:52,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:44:52,944 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 1164 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 2230 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 2230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:52,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 1702 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 2230 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 05:44:52,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2022-07-12 05:44:52,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 588. [2022-07-12 05:44:52,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 456 states have (on average 1.662280701754386) internal successors, (758), 477 states have internal predecessors, (758), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:44:52,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 963 transitions. [2022-07-12 05:44:52,979 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 963 transitions. Word has length 66 [2022-07-12 05:44:52,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:52,979 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 963 transitions. [2022-07-12 05:44:52,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:44:52,980 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 963 transitions. [2022-07-12 05:44:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 05:44:52,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:52,987 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:52,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:44:52,988 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:52,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:52,988 INFO L85 PathProgramCache]: Analyzing trace with hash -516562562, now seen corresponding path program 1 times [2022-07-12 05:44:52,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:52,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129383905] [2022-07-12 05:44:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:52,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:44:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:53,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:53,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:53,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129383905] [2022-07-12 05:44:53,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129383905] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:53,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:53,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:44:53,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374797700] [2022-07-12 05:44:53,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:53,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:44:53,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:53,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:44:53,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:44:53,368 INFO L87 Difference]: Start difference. First operand 588 states and 963 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:44:57,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:44:57,631 INFO L93 Difference]: Finished difference Result 1298 states and 2150 transitions. [2022-07-12 05:44:57,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:44:57,633 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 67 [2022-07-12 05:44:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:44:57,654 INFO L225 Difference]: With dead ends: 1298 [2022-07-12 05:44:57,654 INFO L226 Difference]: Without dead ends: 777 [2022-07-12 05:44:57,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:44:57,673 INFO L413 NwaCegarLoop]: 891 mSDtfsCounter, 803 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 4827 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 4980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 4827 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:44:57,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 2695 Invalid, 4980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [153 Valid, 4827 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-12 05:44:57,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2022-07-12 05:44:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 601. [2022-07-12 05:44:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.6587982832618027) internal successors, (773), 489 states have internal predecessors, (773), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:44:57,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 982 transitions. [2022-07-12 05:44:57,725 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 982 transitions. Word has length 67 [2022-07-12 05:44:57,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:44:57,725 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 982 transitions. [2022-07-12 05:44:57,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:44:57,725 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 982 transitions. [2022-07-12 05:44:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-07-12 05:44:57,727 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:44:57,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:44:57,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:44:57,728 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:44:57,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:44:57,728 INFO L85 PathProgramCache]: Analyzing trace with hash -757102691, now seen corresponding path program 1 times [2022-07-12 05:44:57,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:44:57,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346618772] [2022-07-12 05:44:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:44:57,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:44:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:44:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:44:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:44:57,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:44:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:44:57,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:44:57,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:44:57,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:44:57,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346618772] [2022-07-12 05:44:57,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346618772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:44:57,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:44:57,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:44:57,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050844104] [2022-07-12 05:44:57,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:44:57,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:44:57,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:44:57,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:44:57,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:44:57,979 INFO L87 Difference]: Start difference. First operand 601 states and 982 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:01,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:01,690 INFO L93 Difference]: Finished difference Result 1312 states and 2173 transitions. [2022-07-12 05:45:01,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:45:01,692 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-07-12 05:45:01,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:01,714 INFO L225 Difference]: With dead ends: 1312 [2022-07-12 05:45:01,715 INFO L226 Difference]: Without dead ends: 773 [2022-07-12 05:45:01,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:01,720 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 758 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 2382 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 849 SdHoareTripleChecker+Valid, 1651 SdHoareTripleChecker+Invalid, 2568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:01,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [849 Valid, 1651 Invalid, 2568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2382 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 05:45:01,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-12 05:45:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 601. [2022-07-12 05:45:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.648068669527897) internal successors, (768), 489 states have internal predecessors, (768), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:01,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 977 transitions. [2022-07-12 05:45:01,798 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 977 transitions. Word has length 67 [2022-07-12 05:45:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:01,799 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 977 transitions. [2022-07-12 05:45:01,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:01,799 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 977 transitions. [2022-07-12 05:45:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-07-12 05:45:01,818 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:01,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:01,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:45:01,818 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:01,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1269161536, now seen corresponding path program 1 times [2022-07-12 05:45:01,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:01,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016424301] [2022-07-12 05:45:01,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:01,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:01,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:01,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:01,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:01,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:02,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-12 05:45:02,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:02,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:02,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:02,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:02,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:02,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016424301] [2022-07-12 05:45:02,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016424301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:02,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:02,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:02,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435589461] [2022-07-12 05:45:02,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:02,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:02,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:02,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:02,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:02,274 INFO L87 Difference]: Start difference. First operand 601 states and 977 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:05,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:05,666 INFO L93 Difference]: Finished difference Result 1312 states and 2168 transitions. [2022-07-12 05:45:05,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:45:05,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-07-12 05:45:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:05,673 INFO L225 Difference]: With dead ends: 1312 [2022-07-12 05:45:05,673 INFO L226 Difference]: Without dead ends: 773 [2022-07-12 05:45:05,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:05,688 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 757 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 2362 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 2541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 2362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:05,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1666 Invalid, 2541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 2362 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:45:05,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-12 05:45:05,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 601. [2022-07-12 05:45:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.6373390557939915) internal successors, (763), 489 states have internal predecessors, (763), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:05,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 972 transitions. [2022-07-12 05:45:05,724 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 972 transitions. Word has length 68 [2022-07-12 05:45:05,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:05,724 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 972 transitions. [2022-07-12 05:45:05,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:05,724 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 972 transitions. [2022-07-12 05:45:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-12 05:45:05,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:05,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:05,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:45:05,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:05,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:05,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1710327234, now seen corresponding path program 1 times [2022-07-12 05:45:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:05,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699371772] [2022-07-12 05:45:05,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:05,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:45:05,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:05,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:06,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:06,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:06,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:06,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:06,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699371772] [2022-07-12 05:45:06,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699371772] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:06,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:06,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:06,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128531023] [2022-07-12 05:45:06,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:06,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:06,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:06,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:06,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:06,006 INFO L87 Difference]: Start difference. First operand 601 states and 972 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:08,918 INFO L93 Difference]: Finished difference Result 1312 states and 2163 transitions. [2022-07-12 05:45:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:45:08,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-07-12 05:45:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:08,921 INFO L225 Difference]: With dead ends: 1312 [2022-07-12 05:45:08,922 INFO L226 Difference]: Without dead ends: 773 [2022-07-12 05:45:08,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:08,925 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 767 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 2342 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 2517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 2342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:08,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 1646 Invalid, 2517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 2342 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 05:45:08,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-12 05:45:08,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 601. [2022-07-12 05:45:08,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.6266094420600858) internal successors, (758), 489 states have internal predecessors, (758), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:08,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 967 transitions. [2022-07-12 05:45:08,962 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 967 transitions. Word has length 69 [2022-07-12 05:45:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:08,963 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 967 transitions. [2022-07-12 05:45:08,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 967 transitions. [2022-07-12 05:45:08,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 05:45:08,965 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:08,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:08,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:45:08,965 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:08,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:08,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1166970523, now seen corresponding path program 1 times [2022-07-12 05:45:08,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:08,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290933877] [2022-07-12 05:45:08,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:08,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:45:09,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:09,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:09,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:09,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290933877] [2022-07-12 05:45:09,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290933877] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:09,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:09,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:09,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74381679] [2022-07-12 05:45:09,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:09,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:09,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:09,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:09,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:09,190 INFO L87 Difference]: Start difference. First operand 601 states and 967 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:13,836 INFO L93 Difference]: Finished difference Result 1304 states and 2140 transitions. [2022-07-12 05:45:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:45:13,837 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 70 [2022-07-12 05:45:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:13,840 INFO L225 Difference]: With dead ends: 1304 [2022-07-12 05:45:13,840 INFO L226 Difference]: Without dead ends: 780 [2022-07-12 05:45:13,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:45:13,849 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 1252 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 4560 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1344 SdHoareTripleChecker+Valid, 2550 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 4560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:13,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1344 Valid, 2550 Invalid, 4900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 4560 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-12 05:45:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-07-12 05:45:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 601. [2022-07-12 05:45:13,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.6244635193133048) internal successors, (757), 489 states have internal predecessors, (757), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:13,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 966 transitions. [2022-07-12 05:45:13,942 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 966 transitions. Word has length 70 [2022-07-12 05:45:13,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:13,942 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 966 transitions. [2022-07-12 05:45:13,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:13,942 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 966 transitions. [2022-07-12 05:45:13,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-12 05:45:13,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:13,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:13,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:45:13,999 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:14,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:14,000 INFO L85 PathProgramCache]: Analyzing trace with hash 258078789, now seen corresponding path program 1 times [2022-07-12 05:45:14,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:14,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636735234] [2022-07-12 05:45:14,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:14,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:14,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:14,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-12 05:45:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:14,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:14,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:14,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636735234] [2022-07-12 05:45:14,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636735234] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:14,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:14,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:14,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851056942] [2022-07-12 05:45:14,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:14,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:14,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:14,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:14,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:14,311 INFO L87 Difference]: Start difference. First operand 601 states and 966 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:17,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:17,729 INFO L93 Difference]: Finished difference Result 1312 states and 2155 transitions. [2022-07-12 05:45:17,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:45:17,730 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-07-12 05:45:17,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:17,734 INFO L225 Difference]: With dead ends: 1312 [2022-07-12 05:45:17,734 INFO L226 Difference]: Without dead ends: 773 [2022-07-12 05:45:17,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:17,736 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 765 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2322 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 856 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 2322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:17,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [856 Valid, 1626 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 2322 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 05:45:17,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-07-12 05:45:17,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 601. [2022-07-12 05:45:17,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 466 states have (on average 1.613733905579399) internal successors, (752), 489 states have internal predecessors, (752), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 961 transitions. [2022-07-12 05:45:17,775 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 961 transitions. Word has length 70 [2022-07-12 05:45:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:17,776 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 961 transitions. [2022-07-12 05:45:17,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 961 transitions. [2022-07-12 05:45:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 05:45:17,777 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:17,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:17,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:45:17,777 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:17,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:17,777 INFO L85 PathProgramCache]: Analyzing trace with hash -683133371, now seen corresponding path program 1 times [2022-07-12 05:45:17,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:17,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063932328] [2022-07-12 05:45:17,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:17,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:17,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:17,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:17,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:17,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:18,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:18,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:18,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:18,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:18,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:18,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:18,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063932328] [2022-07-12 05:45:18,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063932328] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:18,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:18,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:18,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631044460] [2022-07-12 05:45:18,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:18,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:18,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:18,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:18,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:18,061 INFO L87 Difference]: Start difference. First operand 601 states and 961 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:22,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:22,067 INFO L93 Difference]: Finished difference Result 1325 states and 2165 transitions. [2022-07-12 05:45:22,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:45:22,068 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 71 [2022-07-12 05:45:22,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:22,097 INFO L225 Difference]: With dead ends: 1325 [2022-07-12 05:45:22,097 INFO L226 Difference]: Without dead ends: 798 [2022-07-12 05:45:22,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:45:22,100 INFO L413 NwaCegarLoop]: 844 mSDtfsCounter, 1246 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 4537 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 4873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 4537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:22,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 2579 Invalid, 4873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 4537 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-12 05:45:22,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2022-07-12 05:45:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 604. [2022-07-12 05:45:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 469 states have (on average 1.607675906183369) internal successors, (754), 492 states have internal predecessors, (754), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:22,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 963 transitions. [2022-07-12 05:45:22,185 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 963 transitions. Word has length 71 [2022-07-12 05:45:22,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:22,185 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 963 transitions. [2022-07-12 05:45:22,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:22,186 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 963 transitions. [2022-07-12 05:45:22,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-12 05:45:22,187 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:22,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:22,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 05:45:22,187 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:22,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:22,187 INFO L85 PathProgramCache]: Analyzing trace with hash 239534055, now seen corresponding path program 1 times [2022-07-12 05:45:22,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:22,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215374296] [2022-07-12 05:45:22,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:22,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:22,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-12 05:45:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:22,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:22,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:22,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:22,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215374296] [2022-07-12 05:45:22,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215374296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:22,509 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:22,509 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:22,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305897757] [2022-07-12 05:45:22,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:22,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:22,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:22,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:22,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:22,510 INFO L87 Difference]: Start difference. First operand 604 states and 963 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:25,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:25,815 INFO L93 Difference]: Finished difference Result 1321 states and 2156 transitions. [2022-07-12 05:45:25,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:45:25,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 71 [2022-07-12 05:45:25,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:25,818 INFO L225 Difference]: With dead ends: 1321 [2022-07-12 05:45:25,819 INFO L226 Difference]: Without dead ends: 779 [2022-07-12 05:45:25,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:25,823 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 764 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:25,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1635 Invalid, 2469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 05:45:25,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2022-07-12 05:45:25,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 604. [2022-07-12 05:45:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 469 states have (on average 1.5970149253731343) internal successors, (749), 492 states have internal predecessors, (749), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 958 transitions. [2022-07-12 05:45:25,904 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 958 transitions. Word has length 71 [2022-07-12 05:45:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:25,905 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 958 transitions. [2022-07-12 05:45:25,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 958 transitions. [2022-07-12 05:45:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 05:45:25,906 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:25,906 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:25,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 05:45:25,907 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:25,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 342549610, now seen corresponding path program 1 times [2022-07-12 05:45:25,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:25,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121192522] [2022-07-12 05:45:25,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:25,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:25,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:25,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:45:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:26,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:26,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:26,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121192522] [2022-07-12 05:45:26,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121192522] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:26,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:26,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:26,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069613959] [2022-07-12 05:45:26,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:26,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:26,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:26,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:26,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:26,194 INFO L87 Difference]: Start difference. First operand 604 states and 958 transitions. Second operand has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:30,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:30,460 INFO L93 Difference]: Finished difference Result 1331 states and 2162 transitions. [2022-07-12 05:45:30,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:45:30,461 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 72 [2022-07-12 05:45:30,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:30,464 INFO L225 Difference]: With dead ends: 1331 [2022-07-12 05:45:30,464 INFO L226 Difference]: Without dead ends: 804 [2022-07-12 05:45:30,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:45:30,466 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 1240 mSDsluCounter, 1726 mSDsCounter, 0 mSdLazyCounter, 4499 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 2563 SdHoareTripleChecker+Invalid, 4838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 4499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:30,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 2563 Invalid, 4838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 4499 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 05:45:30,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-07-12 05:45:30,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 608. [2022-07-12 05:45:30,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 473 states have (on average 1.5898520084566596) internal successors, (752), 496 states have internal predecessors, (752), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2022-07-12 05:45:30,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 961 transitions. [2022-07-12 05:45:30,574 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 961 transitions. Word has length 72 [2022-07-12 05:45:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:30,574 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 961 transitions. [2022-07-12 05:45:30,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 961 transitions. [2022-07-12 05:45:30,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-12 05:45:30,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:30,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:30,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:45:30,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:30,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:30,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1716131402, now seen corresponding path program 1 times [2022-07-12 05:45:30,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:30,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115613503] [2022-07-12 05:45:30,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:30,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:45:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:31,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:31,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:31,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115613503] [2022-07-12 05:45:31,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115613503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:31,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:31,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:31,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004363156] [2022-07-12 05:45:31,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:31,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:31,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:31,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:31,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:31,004 INFO L87 Difference]: Start difference. First operand 608 states and 961 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:33,982 INFO L93 Difference]: Finished difference Result 1369 states and 2201 transitions. [2022-07-12 05:45:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:45:33,983 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2022-07-12 05:45:33,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:33,997 INFO L225 Difference]: With dead ends: 1369 [2022-07-12 05:45:33,997 INFO L226 Difference]: Without dead ends: 759 [2022-07-12 05:45:34,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 05:45:34,001 INFO L413 NwaCegarLoop]: 841 mSDtfsCounter, 1158 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:34,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 1645 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 05:45:34,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2022-07-12 05:45:34,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 589. [2022-07-12 05:45:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 457 states have (on average 1.5973741794310723) internal successors, (730), 478 states have internal predecessors, (730), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:45:34,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 935 transitions. [2022-07-12 05:45:34,071 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 935 transitions. Word has length 72 [2022-07-12 05:45:34,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:34,071 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 935 transitions. [2022-07-12 05:45:34,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:34,072 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 935 transitions. [2022-07-12 05:45:34,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-12 05:45:34,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:34,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:34,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-12 05:45:34,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:34,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:34,073 INFO L85 PathProgramCache]: Analyzing trace with hash 985584106, now seen corresponding path program 1 times [2022-07-12 05:45:34,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:34,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428419037] [2022-07-12 05:45:34,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:34,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:34,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:45:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:34,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:34,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:34,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428419037] [2022-07-12 05:45:34,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428419037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:34,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:34,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:34,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132321667] [2022-07-12 05:45:34,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:34,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:34,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:34,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:34,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:34,412 INFO L87 Difference]: Start difference. First operand 589 states and 935 transitions. Second operand has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:38,492 INFO L93 Difference]: Finished difference Result 1304 states and 2116 transitions. [2022-07-12 05:45:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:45:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2022-07-12 05:45:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:38,507 INFO L225 Difference]: With dead ends: 1304 [2022-07-12 05:45:38,507 INFO L226 Difference]: Without dead ends: 780 [2022-07-12 05:45:38,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:45:38,509 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 1203 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 4432 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1294 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 4761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 4432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:38,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1294 Valid, 2553 Invalid, 4761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 4432 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 05:45:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2022-07-12 05:45:38,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 594. [2022-07-12 05:45:38,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 462 states have (on average 1.5909090909090908) internal successors, (735), 483 states have internal predecessors, (735), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:45:38,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 940 transitions. [2022-07-12 05:45:38,580 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 940 transitions. Word has length 73 [2022-07-12 05:45:38,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:38,581 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 940 transitions. [2022-07-12 05:45:38,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.25) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-12 05:45:38,581 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 940 transitions. [2022-07-12 05:45:38,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 05:45:38,581 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:38,582 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:38,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-12 05:45:38,582 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:38,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:38,582 INFO L85 PathProgramCache]: Analyzing trace with hash 638082109, now seen corresponding path program 1 times [2022-07-12 05:45:38,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:38,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892544199] [2022-07-12 05:45:38,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:38,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:38,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:38,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:38,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:38,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:38,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:38,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:38,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892544199] [2022-07-12 05:45:38,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892544199] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:38,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:38,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 05:45:38,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162534366] [2022-07-12 05:45:38,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:38,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:45:38,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:38,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:45:38,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 05:45:38,845 INFO L87 Difference]: Start difference. First operand 594 states and 940 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:41,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:41,929 INFO L93 Difference]: Finished difference Result 1302 states and 2111 transitions. [2022-07-12 05:45:41,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:45:41,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74 [2022-07-12 05:45:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:41,933 INFO L225 Difference]: With dead ends: 1302 [2022-07-12 05:45:41,933 INFO L226 Difference]: Without dead ends: 757 [2022-07-12 05:45:41,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:41,935 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 1191 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:41,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1633 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 05:45:41,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2022-07-12 05:45:41,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 594. [2022-07-12 05:45:41,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 462 states have (on average 1.5822510822510822) internal successors, (731), 483 states have internal predecessors, (731), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2022-07-12 05:45:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 936 transitions. [2022-07-12 05:45:41,978 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 936 transitions. Word has length 74 [2022-07-12 05:45:41,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:41,978 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 936 transitions. [2022-07-12 05:45:41,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-12 05:45:41,979 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 936 transitions. [2022-07-12 05:45:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-12 05:45:41,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:41,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:45:41,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-12 05:45:41,980 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:41,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:41,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1607497345, now seen corresponding path program 1 times [2022-07-12 05:45:41,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:41,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942527373] [2022-07-12 05:45:41,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:41,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:41,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-12 05:45:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:42,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 05:45:42,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:42,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942527373] [2022-07-12 05:45:42,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942527373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:42,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:42,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:45:42,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983207310] [2022-07-12 05:45:42,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:42,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:45:42,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:42,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:45:42,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:45:42,343 INFO L87 Difference]: Start difference. First operand 594 states and 936 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-07-12 05:45:49,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:45:49,622 INFO L93 Difference]: Finished difference Result 2132 states and 3551 transitions. [2022-07-12 05:45:49,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-12 05:45:49,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 74 [2022-07-12 05:45:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:45:49,659 INFO L225 Difference]: With dead ends: 2132 [2022-07-12 05:45:49,659 INFO L226 Difference]: Without dead ends: 1616 [2022-07-12 05:45:49,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:45:49,662 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 3679 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 4483 mSolverCounterSat, 1147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 5630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1147 IncrementalHoareTripleChecker+Valid, 4483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:45:49,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3776 Valid, 2272 Invalid, 5630 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1147 Valid, 4483 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-12 05:45:49,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2022-07-12 05:45:49,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1136. [2022-07-12 05:45:49,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 883 states have (on average 1.6194790486976218) internal successors, (1430), 913 states have internal predecessors, (1430), 204 states have call successors, (204), 47 states have call predecessors, (204), 48 states have return successors, (206), 188 states have call predecessors, (206), 199 states have call successors, (206) [2022-07-12 05:45:49,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1840 transitions. [2022-07-12 05:45:49,803 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1840 transitions. Word has length 74 [2022-07-12 05:45:49,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:45:49,803 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1840 transitions. [2022-07-12 05:45:49,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 7 states have internal predecessors, (59), 5 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-07-12 05:45:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1840 transitions. [2022-07-12 05:45:49,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-07-12 05:45:49,825 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:45:49,825 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:45:49,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 05:45:49,825 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:45:49,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:45:49,826 INFO L85 PathProgramCache]: Analyzing trace with hash -857434917, now seen corresponding path program 1 times [2022-07-12 05:45:49,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:45:49,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996966707] [2022-07-12 05:45:49,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:45:49,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:45:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:49,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:45:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:49,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:49,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:45:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:45:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:45:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:45:50,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:45:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:45:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:45:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:45:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-12 05:45:50,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:45:50,842 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 05:45:50,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:45:50,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996966707] [2022-07-12 05:45:50,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996966707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:45:50,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:45:50,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 05:45:50,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033100299] [2022-07-12 05:45:50,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:45:50,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 05:45:50,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:45:50,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 05:45:50,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:45:50,844 INFO L87 Difference]: Start difference. First operand 1136 states and 1840 transitions. Second operand has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:10,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:10,199 INFO L93 Difference]: Finished difference Result 6056 states and 10172 transitions. [2022-07-12 05:46:10,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-07-12 05:46:10,199 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) Word has length 128 [2022-07-12 05:46:10,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:10,219 INFO L225 Difference]: With dead ends: 6056 [2022-07-12 05:46:10,219 INFO L226 Difference]: Without dead ends: 4999 [2022-07-12 05:46:10,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1052 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=760, Invalid=2546, Unknown=0, NotChecked=0, Total=3306 [2022-07-12 05:46:10,226 INFO L413 NwaCegarLoop]: 1989 mSDtfsCounter, 4135 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 12846 mSolverCounterSat, 2502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4147 SdHoareTripleChecker+Valid, 5770 SdHoareTripleChecker+Invalid, 15348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2502 IncrementalHoareTripleChecker+Valid, 12846 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:10,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4147 Valid, 5770 Invalid, 15348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2502 Valid, 12846 Invalid, 0 Unknown, 0 Unchecked, 14.1s Time] [2022-07-12 05:46:10,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4999 states. [2022-07-12 05:46:10,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4999 to 2763. [2022-07-12 05:46:10,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2128 states have (on average 1.605263157894737) internal successors, (3416), 2179 states have internal predecessors, (3416), 498 states have call successors, (498), 127 states have call predecessors, (498), 136 states have return successors, (566), 478 states have call predecessors, (566), 493 states have call successors, (566) [2022-07-12 05:46:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4480 transitions. [2022-07-12 05:46:10,527 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4480 transitions. Word has length 128 [2022-07-12 05:46:10,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:10,527 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 4480 transitions. [2022-07-12 05:46:10,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.7272727272727275) internal successors, (85), 7 states have internal predecessors, (85), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:10,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4480 transitions. [2022-07-12 05:46:10,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-07-12 05:46:10,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:10,531 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:10,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 05:46:10,531 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:10,532 INFO L85 PathProgramCache]: Analyzing trace with hash -947376971, now seen corresponding path program 1 times [2022-07-12 05:46:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:10,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931680316] [2022-07-12 05:46:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:10,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:11,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:46:11,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-12 05:46:11,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:46:11,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:46:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:46:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,090 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:46:11,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:11,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931680316] [2022-07-12 05:46:11,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931680316] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:46:11,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108960599] [2022-07-12 05:46:11,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:11,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:11,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:46:11,103 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) [2022-07-12 05:46:11,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 05:46:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:11,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 1696 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:46:11,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:46:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:46:11,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:46:11,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108960599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:11,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:46:11,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 16 [2022-07-12 05:46:11,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405186106] [2022-07-12 05:46:11,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:11,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:46:11,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:11,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:46:11,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:46:11,527 INFO L87 Difference]: Start difference. First operand 2763 states and 4480 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:46:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:12,137 INFO L93 Difference]: Finished difference Result 5512 states and 9162 transitions. [2022-07-12 05:46:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:46:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 129 [2022-07-12 05:46:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:12,149 INFO L225 Difference]: With dead ends: 5512 [2022-07-12 05:46:12,150 INFO L226 Difference]: Without dead ends: 2827 [2022-07-12 05:46:12,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 156 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2022-07-12 05:46:12,162 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 863 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:12,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 2301 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:46:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2022-07-12 05:46:12,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2827. [2022-07-12 05:46:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2827 states, 2184 states have (on average 1.6080586080586081) internal successors, (3512), 2235 states have internal predecessors, (3512), 498 states have call successors, (498), 135 states have call predecessors, (498), 144 states have return successors, (574), 478 states have call predecessors, (574), 493 states have call successors, (574) [2022-07-12 05:46:12,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 4584 transitions. [2022-07-12 05:46:12,485 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 4584 transitions. Word has length 129 [2022-07-12 05:46:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:12,487 INFO L495 AbstractCegarLoop]: Abstraction has 2827 states and 4584 transitions. [2022-07-12 05:46:12,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:46:12,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 4584 transitions. [2022-07-12 05:46:12,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-07-12 05:46:12,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:12,491 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:12,514 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-12 05:46:12,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:12,713 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:12,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash -584278497, now seen corresponding path program 1 times [2022-07-12 05:46:12,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:12,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560170679] [2022-07-12 05:46:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:12,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:12,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:12,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:12,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:12,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:12,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:13,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:46:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 05:46:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 05:46:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:46:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:46:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:46:13,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:13,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560170679] [2022-07-12 05:46:13,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560170679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:13,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:13,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:46:13,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765992271] [2022-07-12 05:46:13,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:13,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:46:13,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:13,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:46:13,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:46:13,220 INFO L87 Difference]: Start difference. First operand 2827 states and 4584 transitions. Second operand has 10 states, 10 states have (on average 9.3) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:18,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:18,906 INFO L93 Difference]: Finished difference Result 6481 states and 11008 transitions. [2022-07-12 05:46:18,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 05:46:18,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-07-12 05:46:18,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:18,923 INFO L225 Difference]: With dead ends: 6481 [2022-07-12 05:46:18,923 INFO L226 Difference]: Without dead ends: 3716 [2022-07-12 05:46:18,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:46:18,935 INFO L413 NwaCegarLoop]: 928 mSDtfsCounter, 2282 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 3681 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2293 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 4554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 3681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:18,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2293 Valid, 2628 Invalid, 4554 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [873 Valid, 3681 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-07-12 05:46:18,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2022-07-12 05:46:19,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 2867. [2022-07-12 05:46:19,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2867 states, 2216 states have (on average 1.595667870036101) internal successors, (3536), 2267 states have internal predecessors, (3536), 498 states have call successors, (498), 143 states have call predecessors, (498), 152 states have return successors, (582), 478 states have call predecessors, (582), 493 states have call successors, (582) [2022-07-12 05:46:19,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2867 states to 2867 states and 4616 transitions. [2022-07-12 05:46:19,252 INFO L78 Accepts]: Start accepts. Automaton has 2867 states and 4616 transitions. Word has length 131 [2022-07-12 05:46:19,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:19,252 INFO L495 AbstractCegarLoop]: Abstraction has 2867 states and 4616 transitions. [2022-07-12 05:46:19,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.3) internal successors, (93), 6 states have internal predecessors, (93), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:19,253 INFO L276 IsEmpty]: Start isEmpty. Operand 2867 states and 4616 transitions. [2022-07-12 05:46:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-07-12 05:46:19,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:19,255 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:19,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 05:46:19,256 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:19,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:19,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1477178101, now seen corresponding path program 1 times [2022-07-12 05:46:19,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:19,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404215705] [2022-07-12 05:46:19,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:19,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:19,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:46:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 05:46:19,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:46:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:46:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:46:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:19,691 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:46:19,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:19,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404215705] [2022-07-12 05:46:19,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404215705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:19,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:19,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:46:19,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933248454] [2022-07-12 05:46:19,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:19,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:46:19,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:19,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:46:19,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:46:19,693 INFO L87 Difference]: Start difference. First operand 2867 states and 4616 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:25,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:25,889 INFO L93 Difference]: Finished difference Result 6569 states and 11060 transitions. [2022-07-12 05:46:25,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 05:46:25,892 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2022-07-12 05:46:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:26,006 INFO L225 Difference]: With dead ends: 6569 [2022-07-12 05:46:26,007 INFO L226 Difference]: Without dead ends: 3764 [2022-07-12 05:46:26,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:46:26,059 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 1821 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 3911 mSolverCounterSat, 721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 2653 SdHoareTripleChecker+Invalid, 4632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 721 IncrementalHoareTripleChecker+Valid, 3911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:26,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 2653 Invalid, 4632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [721 Valid, 3911 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-07-12 05:46:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3764 states. [2022-07-12 05:46:26,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3764 to 2915. [2022-07-12 05:46:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2915 states, 2256 states have (on average 1.5815602836879432) internal successors, (3568), 2307 states have internal predecessors, (3568), 498 states have call successors, (498), 151 states have call predecessors, (498), 160 states have return successors, (590), 478 states have call predecessors, (590), 493 states have call successors, (590) [2022-07-12 05:46:26,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2915 states to 2915 states and 4656 transitions. [2022-07-12 05:46:26,502 INFO L78 Accepts]: Start accepts. Automaton has 2915 states and 4656 transitions. Word has length 133 [2022-07-12 05:46:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:26,503 INFO L495 AbstractCegarLoop]: Abstraction has 2915 states and 4656 transitions. [2022-07-12 05:46:26,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 6 states have internal predecessors, (95), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:26,504 INFO L276 IsEmpty]: Start isEmpty. Operand 2915 states and 4656 transitions. [2022-07-12 05:46:26,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-07-12 05:46:26,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:26,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:26,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-12 05:46:26,528 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:26,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:26,529 INFO L85 PathProgramCache]: Analyzing trace with hash -506061123, now seen corresponding path program 1 times [2022-07-12 05:46:26,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:26,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268988275] [2022-07-12 05:46:26,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:26,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:26,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:26,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:26,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:26,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:26,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:27,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:46:27,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:46:27,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 05:46:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:46:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:46:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:46:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:27,248 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 05:46:27,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:27,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268988275] [2022-07-12 05:46:27,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268988275] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:27,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:27,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-12 05:46:27,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281021002] [2022-07-12 05:46:27,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:27,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-12 05:46:27,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:27,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-12 05:46:27,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:46:27,251 INFO L87 Difference]: Start difference. First operand 2915 states and 4656 transitions. Second operand has 12 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:40,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:40,115 INFO L93 Difference]: Finished difference Result 10068 states and 16592 transitions. [2022-07-12 05:46:40,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-12 05:46:40,115 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 134 [2022-07-12 05:46:40,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:40,145 INFO L225 Difference]: With dead ends: 10068 [2022-07-12 05:46:40,145 INFO L226 Difference]: Without dead ends: 7231 [2022-07-12 05:46:40,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 447 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=392, Invalid=1330, Unknown=0, NotChecked=0, Total=1722 [2022-07-12 05:46:40,163 INFO L413 NwaCegarLoop]: 1640 mSDtfsCounter, 2712 mSDsluCounter, 3462 mSDsCounter, 0 mSdLazyCounter, 9330 mSolverCounterSat, 1317 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 10647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1317 IncrementalHoareTripleChecker+Valid, 9330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:40,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 5102 Invalid, 10647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1317 Valid, 9330 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2022-07-12 05:46:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7231 states. [2022-07-12 05:46:41,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7231 to 5847. [2022-07-12 05:46:41,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5847 states, 4448 states have (on average 1.5755395683453237) internal successors, (7008), 4559 states have internal predecessors, (7008), 1084 states have call successors, (1084), 279 states have call predecessors, (1084), 314 states have return successors, (1270), 1052 states have call predecessors, (1270), 1079 states have call successors, (1270) [2022-07-12 05:46:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 9362 transitions. [2022-07-12 05:46:41,108 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 9362 transitions. Word has length 134 [2022-07-12 05:46:41,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:41,109 INFO L495 AbstractCegarLoop]: Abstraction has 5847 states and 9362 transitions. [2022-07-12 05:46:41,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 8.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-12 05:46:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 9362 transitions. [2022-07-12 05:46:41,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 05:46:41,114 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:41,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-12 05:46:41,114 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash 921881431, now seen corresponding path program 1 times [2022-07-12 05:46:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:41,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772207990] [2022-07-12 05:46:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:41,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:41,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:41,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:46:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 05:46:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 05:46:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-12 05:46:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 05:46:41,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:41,630 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:46:41,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:41,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772207990] [2022-07-12 05:46:41,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772207990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:41,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:46:41,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:46:41,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346640515] [2022-07-12 05:46:41,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:41,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:46:41,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:46:41,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:46:41,631 INFO L87 Difference]: Start difference. First operand 5847 states and 9362 transitions. Second operand has 10 states, 10 states have (on average 9.7) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:47,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:47,331 INFO L93 Difference]: Finished difference Result 13041 states and 21714 transitions. [2022-07-12 05:46:47,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 05:46:47,332 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 135 [2022-07-12 05:46:47,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:47,413 INFO L225 Difference]: With dead ends: 13041 [2022-07-12 05:46:47,413 INFO L226 Difference]: Without dead ends: 7240 [2022-07-12 05:46:47,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:46:47,464 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 2296 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 3776 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 4661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 3776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:47,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 2631 Invalid, 4661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 3776 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 05:46:47,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7240 states. [2022-07-12 05:46:48,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7240 to 5959. [2022-07-12 05:46:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 4544 states have (on average 1.5598591549295775) internal successors, (7088), 4655 states have internal predecessors, (7088), 1084 states have call successors, (1084), 295 states have call predecessors, (1084), 330 states have return successors, (1286), 1052 states have call predecessors, (1286), 1079 states have call successors, (1286) [2022-07-12 05:46:48,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 9458 transitions. [2022-07-12 05:46:48,393 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 9458 transitions. Word has length 135 [2022-07-12 05:46:48,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:48,407 INFO L495 AbstractCegarLoop]: Abstraction has 5959 states and 9458 transitions. [2022-07-12 05:46:48,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.7) internal successors, (97), 6 states have internal predecessors, (97), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-12 05:46:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 9458 transitions. [2022-07-12 05:46:48,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-12 05:46:48,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:48,411 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:48,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-12 05:46:48,412 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:48,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:48,412 INFO L85 PathProgramCache]: Analyzing trace with hash 650210261, now seen corresponding path program 1 times [2022-07-12 05:46:48,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:48,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928445584] [2022-07-12 05:46:48,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:48,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:48,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:48,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:46:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:46:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:46:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:48,933 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-12 05:46:48,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928445584] [2022-07-12 05:46:48,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928445584] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:46:48,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393677313] [2022-07-12 05:46:48,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:48,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:46:48,935 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) [2022-07-12 05:46:48,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 05:46:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:49,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 1702 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:46:49,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:46:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 05:46:49,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:46:49,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393677313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:49,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:46:49,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2022-07-12 05:46:49,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672272637] [2022-07-12 05:46:49,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:49,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:46:49,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:49,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:46:49,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:46:49,389 INFO L87 Difference]: Start difference. First operand 5959 states and 9458 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 05:46:50,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:50,355 INFO L93 Difference]: Finished difference Result 6174 states and 9823 transitions. [2022-07-12 05:46:50,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:46:50,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) Word has length 137 [2022-07-12 05:46:50,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:50,413 INFO L225 Difference]: With dead ends: 6174 [2022-07-12 05:46:50,414 INFO L226 Difference]: Without dead ends: 6159 [2022-07-12 05:46:50,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:46:50,417 INFO L413 NwaCegarLoop]: 921 mSDtfsCounter, 928 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:50,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 1634 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 05:46:50,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6159 states. [2022-07-12 05:46:51,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6159 to 5977. [2022-07-12 05:46:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5977 states, 4562 states have (on average 1.557650153441473) internal successors, (7106), 4673 states have internal predecessors, (7106), 1084 states have call successors, (1084), 295 states have call predecessors, (1084), 330 states have return successors, (1286), 1052 states have call predecessors, (1286), 1079 states have call successors, (1286) [2022-07-12 05:46:51,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5977 states to 5977 states and 9476 transitions. [2022-07-12 05:46:51,253 INFO L78 Accepts]: Start accepts. Automaton has 5977 states and 9476 transitions. Word has length 137 [2022-07-12 05:46:51,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:51,253 INFO L495 AbstractCegarLoop]: Abstraction has 5977 states and 9476 transitions. [2022-07-12 05:46:51,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 1 states have call successors, (15) [2022-07-12 05:46:51,254 INFO L276 IsEmpty]: Start isEmpty. Operand 5977 states and 9476 transitions. [2022-07-12 05:46:51,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-12 05:46:51,257 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:51,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-07-12 05:46:51,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 05:46:51,531 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,SelfDestructingSolverStorable24 [2022-07-12 05:46:51,532 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:51,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:51,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1741325680, now seen corresponding path program 1 times [2022-07-12 05:46:51,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:51,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495984709] [2022-07-12 05:46:51,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:51,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:51,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:51,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:52,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:46:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:46:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:46:52,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:46:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,101 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-12 05:46:52,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:52,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495984709] [2022-07-12 05:46:52,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495984709] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:46:52,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [951257815] [2022-07-12 05:46:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:52,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:52,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:46:52,103 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) [2022-07-12 05:46:52,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 05:46:52,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:52,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-12 05:46:52,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:46:52,552 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 05:46:52,553 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:46:52,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [951257815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:52,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:46:52,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-12 05:46:52,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694646786] [2022-07-12 05:46:52,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:52,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:46:52,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:52,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:46:52,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:46:52,555 INFO L87 Difference]: Start difference. First operand 5977 states and 9476 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:46:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:53,603 INFO L93 Difference]: Finished difference Result 6555 states and 10255 transitions. [2022-07-12 05:46:53,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:46:53,604 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2022-07-12 05:46:53,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:53,671 INFO L225 Difference]: With dead ends: 6555 [2022-07-12 05:46:53,674 INFO L226 Difference]: Without dead ends: 6540 [2022-07-12 05:46:53,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:46:53,696 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 892 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 894 SdHoareTripleChecker+Valid, 3672 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:53,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [894 Valid, 3672 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-12 05:46:53,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6540 states. [2022-07-12 05:46:54,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6540 to 6421. [2022-07-12 05:46:54,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6421 states, 4916 states have (on average 1.5394629780309195) internal successors, (7568), 5027 states have internal predecessors, (7568), 1132 states have call successors, (1132), 343 states have call predecessors, (1132), 372 states have return successors, (1366), 1094 states have call predecessors, (1366), 1127 states have call successors, (1366) [2022-07-12 05:46:54,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6421 states to 6421 states and 10066 transitions. [2022-07-12 05:46:54,564 INFO L78 Accepts]: Start accepts. Automaton has 6421 states and 10066 transitions. Word has length 143 [2022-07-12 05:46:54,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:54,580 INFO L495 AbstractCegarLoop]: Abstraction has 6421 states and 10066 transitions. [2022-07-12 05:46:54,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 4 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:46:54,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6421 states and 10066 transitions. [2022-07-12 05:46:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-12 05:46:54,584 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:54,584 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 05:46:54,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 05:46:54,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:54,804 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:54,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:54,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1862067337, now seen corresponding path program 1 times [2022-07-12 05:46:54,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:54,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675374968] [2022-07-12 05:46:54,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:54,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:54,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:54,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:54,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:54,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:54,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:46:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:55,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:46:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:46:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:46:55,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:46:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,279 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 05:46:55,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:55,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675374968] [2022-07-12 05:46:55,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675374968] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:46:55,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53680074] [2022-07-12 05:46:55,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:55,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:55,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:46:55,304 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) [2022-07-12 05:46:55,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 05:46:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:55,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 1755 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 05:46:55,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:46:55,665 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:46:55,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:46:55,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53680074] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:55,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:46:55,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 14 [2022-07-12 05:46:55,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831654456] [2022-07-12 05:46:55,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:55,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:46:55,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:55,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:46:55,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-07-12 05:46:55,666 INFO L87 Difference]: Start difference. First operand 6421 states and 10066 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 05:46:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:46:56,842 INFO L93 Difference]: Finished difference Result 12808 states and 20448 transitions. [2022-07-12 05:46:56,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 05:46:56,855 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2022-07-12 05:46:56,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:46:56,919 INFO L225 Difference]: With dead ends: 12808 [2022-07-12 05:46:56,919 INFO L226 Difference]: Without dead ends: 6453 [2022-07-12 05:46:56,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:46:56,939 INFO L413 NwaCegarLoop]: 894 mSDtfsCounter, 846 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 2301 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:46:56,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 2301 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-12 05:46:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6453 states. [2022-07-12 05:46:57,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6453 to 6453. [2022-07-12 05:46:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6453 states, 4932 states have (on average 1.532035685320357) internal successors, (7556), 5059 states have internal predecessors, (7556), 1132 states have call successors, (1132), 343 states have call predecessors, (1132), 388 states have return successors, (1382), 1094 states have call predecessors, (1382), 1127 states have call successors, (1382) [2022-07-12 05:46:57,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6453 states to 6453 states and 10070 transitions. [2022-07-12 05:46:57,830 INFO L78 Accepts]: Start accepts. Automaton has 6453 states and 10070 transitions. Word has length 154 [2022-07-12 05:46:57,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:46:57,830 INFO L495 AbstractCegarLoop]: Abstraction has 6453 states and 10070 transitions. [2022-07-12 05:46:57,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-12 05:46:57,831 INFO L276 IsEmpty]: Start isEmpty. Operand 6453 states and 10070 transitions. [2022-07-12 05:46:57,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-12 05:46:57,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:46:57,834 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 05:46:57,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-07-12 05:46:58,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-07-12 05:46:58,048 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:46:58,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:46:58,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1015335639, now seen corresponding path program 1 times [2022-07-12 05:46:58,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:46:58,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648878293] [2022-07-12 05:46:58,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:58,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:46:58,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:46:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:46:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:46:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:46:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:46:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:46:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:46:58,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:46:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-07-12 05:46:58,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:46:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,494 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 05:46:58,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:46:58,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648878293] [2022-07-12 05:46:58,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648878293] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:46:58,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583172718] [2022-07-12 05:46:58,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:46:58,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:46:58,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:46:58,496 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) [2022-07-12 05:46:58,497 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 05:46:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:46:58,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 1757 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-12 05:46:58,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:46:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-12 05:46:58,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:46:58,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583172718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:46:58,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:46:58,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2022-07-12 05:46:58,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461944133] [2022-07-12 05:46:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:46:58,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:46:58,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:46:58,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:46:58,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:46:58,954 INFO L87 Difference]: Start difference. First operand 6453 states and 10070 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-12 05:47:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:01,364 INFO L93 Difference]: Finished difference Result 13791 states and 21853 transitions. [2022-07-12 05:47:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-12 05:47:01,364 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 154 [2022-07-12 05:47:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:01,392 INFO L225 Difference]: With dead ends: 13791 [2022-07-12 05:47:01,392 INFO L226 Difference]: Without dead ends: 7424 [2022-07-12 05:47:01,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:47:01,425 INFO L413 NwaCegarLoop]: 1624 mSDtfsCounter, 2760 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 3843 mSolverCounterSat, 716 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 4559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 3843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:01,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2865 Valid, 2847 Invalid, 4559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [716 Valid, 3843 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 05:47:01,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2022-07-12 05:47:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 7113. [2022-07-12 05:47:02,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7113 states, 5414 states have (on average 1.5293683043960102) internal successors, (8280), 5569 states have internal predecessors, (8280), 1258 states have call successors, (1258), 355 states have call predecessors, (1258), 440 states have return successors, (1586), 1232 states have call predecessors, (1586), 1253 states have call successors, (1586) [2022-07-12 05:47:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7113 states to 7113 states and 11124 transitions. [2022-07-12 05:47:02,328 INFO L78 Accepts]: Start accepts. Automaton has 7113 states and 11124 transitions. Word has length 154 [2022-07-12 05:47:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:02,328 INFO L495 AbstractCegarLoop]: Abstraction has 7113 states and 11124 transitions. [2022-07-12 05:47:02,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-12 05:47:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 7113 states and 11124 transitions. [2022-07-12 05:47:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-07-12 05:47:02,332 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:02,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2022-07-12 05:47:02,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 05:47:02,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-07-12 05:47:02,538 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:02,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1945659165, now seen corresponding path program 1 times [2022-07-12 05:47:02,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:02,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005756612] [2022-07-12 05:47:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:02,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:47:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:47:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:02,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:47:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:47:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:47:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:47:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:47:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:47:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,264 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:47:03,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:03,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005756612] [2022-07-12 05:47:03,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005756612] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:47:03,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843751323] [2022-07-12 05:47:03,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:03,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:47:03,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:47:03,276 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) [2022-07-12 05:47:03,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-12 05:47:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:03,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-12 05:47:03,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:47:03,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:47:03,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:47:03,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843751323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:03,591 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:47:03,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [23] total 26 [2022-07-12 05:47:03,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363394015] [2022-07-12 05:47:03,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:03,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 05:47:03,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:03,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 05:47:03,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=578, Unknown=0, NotChecked=0, Total=650 [2022-07-12 05:47:03,593 INFO L87 Difference]: Start difference. First operand 7113 states and 11124 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 05:47:04,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:04,793 INFO L93 Difference]: Finished difference Result 7516 states and 11806 transitions. [2022-07-12 05:47:04,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:47:04,823 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 159 [2022-07-12 05:47:04,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:04,891 INFO L225 Difference]: With dead ends: 7516 [2022-07-12 05:47:04,891 INFO L226 Difference]: Without dead ends: 7501 [2022-07-12 05:47:04,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2022-07-12 05:47:04,899 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 71 mSDsluCounter, 2832 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3800 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:04,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3800 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:47:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7501 states. [2022-07-12 05:47:05,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7501 to 7167. [2022-07-12 05:47:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7167 states, 5468 states have (on average 1.524140453547915) internal successors, (8334), 5623 states have internal predecessors, (8334), 1258 states have call successors, (1258), 355 states have call predecessors, (1258), 440 states have return successors, (1586), 1232 states have call predecessors, (1586), 1253 states have call successors, (1586) [2022-07-12 05:47:05,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7167 states to 7167 states and 11178 transitions. [2022-07-12 05:47:05,866 INFO L78 Accepts]: Start accepts. Automaton has 7167 states and 11178 transitions. Word has length 159 [2022-07-12 05:47:05,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:05,867 INFO L495 AbstractCegarLoop]: Abstraction has 7167 states and 11178 transitions. [2022-07-12 05:47:05,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-12 05:47:05,867 INFO L276 IsEmpty]: Start isEmpty. Operand 7167 states and 11178 transitions. [2022-07-12 05:47:05,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2022-07-12 05:47:05,873 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:05,873 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 3, 3, 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] [2022-07-12 05:47:05,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-12 05:47:06,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-07-12 05:47:06,090 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:06,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:06,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1079383695, now seen corresponding path program 1 times [2022-07-12 05:47:06,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:06,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274664044] [2022-07-12 05:47:06,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:06,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:06,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:47:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:47:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:47:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:47:06,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:47:06,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:47:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:47:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:47:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:47:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:47:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-12 05:47:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 05:47:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-07-12 05:47:06,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:06,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274664044] [2022-07-12 05:47:06,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274664044] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:47:06,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431525903] [2022-07-12 05:47:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:06,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:47:06,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:47:06,834 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) [2022-07-12 05:47:06,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-12 05:47:07,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:07,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 1882 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-12 05:47:07,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:47:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 69 proven. 6 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-07-12 05:47:07,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-12 05:47:07,889 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2022-07-12 05:47:07,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431525903] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-12 05:47:07,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-12 05:47:07,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 8] total 29 [2022-07-12 05:47:07,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084851484] [2022-07-12 05:47:07,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-12 05:47:07,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-07-12 05:47:07,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:07,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-07-12 05:47:07,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=718, Unknown=0, NotChecked=0, Total=812 [2022-07-12 05:47:07,891 INFO L87 Difference]: Start difference. First operand 7167 states and 11178 transitions. Second operand has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 20 states have internal predecessors, (265), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) [2022-07-12 05:47:46,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:46,098 INFO L93 Difference]: Finished difference Result 38693 states and 67565 transitions. [2022-07-12 05:47:46,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-07-12 05:47:46,099 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 20 states have internal predecessors, (265), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) Word has length 202 [2022-07-12 05:47:46,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:46,283 INFO L225 Difference]: With dead ends: 38693 [2022-07-12 05:47:46,283 INFO L226 Difference]: Without dead ends: 31604 [2022-07-12 05:47:46,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 447 SyntacticMatches, 4 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6159 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=2308, Invalid=16598, Unknown=0, NotChecked=0, Total=18906 [2022-07-12 05:47:46,356 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 19293 mSDsluCounter, 15453 mSDsCounter, 0 mSdLazyCounter, 42643 mSolverCounterSat, 10023 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19293 SdHoareTripleChecker+Valid, 18213 SdHoareTripleChecker+Invalid, 52666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 10023 IncrementalHoareTripleChecker+Valid, 42643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:46,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19293 Valid, 18213 Invalid, 52666 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [10023 Valid, 42643 Invalid, 0 Unknown, 0 Unchecked, 24.0s Time] [2022-07-12 05:47:46,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31604 states. [2022-07-12 05:47:50,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31604 to 23377. [2022-07-12 05:47:50,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23377 states, 17672 states have (on average 1.5216161158895427) internal successors, (26890), 18223 states have internal predecessors, (26890), 4300 states have call successors, (4300), 1031 states have call predecessors, (4300), 1404 states have return successors, (5918), 4294 states have call predecessors, (5918), 4295 states have call successors, (5918) [2022-07-12 05:47:50,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23377 states to 23377 states and 37108 transitions. [2022-07-12 05:47:50,629 INFO L78 Accepts]: Start accepts. Automaton has 23377 states and 37108 transitions. Word has length 202 [2022-07-12 05:47:50,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:47:50,630 INFO L495 AbstractCegarLoop]: Abstraction has 23377 states and 37108 transitions. [2022-07-12 05:47:50,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.137931034482758) internal successors, (265), 20 states have internal predecessors, (265), 10 states have call successors, (56), 9 states have call predecessors, (56), 15 states have return successors, (56), 16 states have call predecessors, (56), 9 states have call successors, (56) [2022-07-12 05:47:50,630 INFO L276 IsEmpty]: Start isEmpty. Operand 23377 states and 37108 transitions. [2022-07-12 05:47:50,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-12 05:47:50,651 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:50,651 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 4, 4, 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, 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] [2022-07-12 05:47:50,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-12 05:47:50,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:47:50,860 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:50,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:50,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1784463043, now seen corresponding path program 1 times [2022-07-12 05:47:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:50,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521042450] [2022-07-12 05:47:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:47:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:47:51,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:47:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:47:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:47:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:47:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:47:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:47:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:47:51,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:47:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:47:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 05:47:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 05:47:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:47:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 05:47:51,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:47:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-12 05:47:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:47:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:47:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:47:51,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,493 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2022-07-12 05:47:51,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:51,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521042450] [2022-07-12 05:47:51,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521042450] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:47:51,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632443666] [2022-07-12 05:47:51,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:51,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:47:51,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:47:51,495 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) [2022-07-12 05:47:51,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-12 05:47:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:51,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:47:51,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:47:51,871 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2022-07-12 05:47:51,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:47:51,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632443666] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:51,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:47:51,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2022-07-12 05:47:51,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124845179] [2022-07-12 05:47:51,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:51,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:47:51,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:51,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:47:51,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:47:51,874 INFO L87 Difference]: Start difference. First operand 23377 states and 37108 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-12 05:47:57,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:47:57,288 INFO L93 Difference]: Finished difference Result 59950 states and 96703 transitions. [2022-07-12 05:47:57,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:47:57,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) Word has length 280 [2022-07-12 05:47:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:47:57,709 INFO L225 Difference]: With dead ends: 59950 [2022-07-12 05:47:57,709 INFO L226 Difference]: Without dead ends: 36667 [2022-07-12 05:47:57,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:47:57,802 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 903 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:47:57,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 1954 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:47:57,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36667 states. [2022-07-12 05:48:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36667 to 36665. [2022-07-12 05:48:03,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36665 states, 27681 states have (on average 1.5133123803330804) internal successors, (41890), 28576 states have internal predecessors, (41890), 6766 states have call successors, (6766), 1636 states have call predecessors, (6766), 2217 states have return successors, (10169), 6796 states have call predecessors, (10169), 6761 states have call successors, (10169) [2022-07-12 05:48:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36665 states to 36665 states and 58825 transitions. [2022-07-12 05:48:03,470 INFO L78 Accepts]: Start accepts. Automaton has 36665 states and 58825 transitions. Word has length 280 [2022-07-12 05:48:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:03,472 INFO L495 AbstractCegarLoop]: Abstraction has 36665 states and 58825 transitions. [2022-07-12 05:48:03,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 1 states have call successors, (27) [2022-07-12 05:48:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 36665 states and 58825 transitions. [2022-07-12 05:48:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-07-12 05:48:03,496 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:03,496 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 4, 4, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 05:48:03,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-12 05:48:03,711 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,SelfDestructingSolverStorable30 [2022-07-12 05:48:03,711 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:03,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:03,712 INFO L85 PathProgramCache]: Analyzing trace with hash -13522551, now seen corresponding path program 1 times [2022-07-12 05:48:03,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:03,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186782822] [2022-07-12 05:48:03,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:03,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:03,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:03,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:03,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:03,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:03,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:48:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:48:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:04,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:48:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:48:04,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:48:04,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:48:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-12 05:48:04,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 05:48:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-12 05:48:04,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:04,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:04,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:48:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 05:48:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:48:04,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 05:48:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:48:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:48:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:48:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-12 05:48:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,312 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2022-07-12 05:48:04,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186782822] [2022-07-12 05:48:04,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186782822] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:04,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091662718] [2022-07-12 05:48:04,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:04,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:04,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:04,314 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) [2022-07-12 05:48:04,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-12 05:48:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:04,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 2978 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 05:48:04,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:04,794 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2022-07-12 05:48:04,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:04,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091662718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:04,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:04,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2022-07-12 05:48:04,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330217699] [2022-07-12 05:48:04,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:04,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-12 05:48:04,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:04,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-12 05:48:04,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:48:04,797 INFO L87 Difference]: Start difference. First operand 36665 states and 58825 transitions. Second operand has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 05:48:09,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:09,163 INFO L93 Difference]: Finished difference Result 47676 states and 76071 transitions. [2022-07-12 05:48:09,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:48:09,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) Word has length 340 [2022-07-12 05:48:09,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:09,254 INFO L225 Difference]: With dead ends: 47676 [2022-07-12 05:48:09,255 INFO L226 Difference]: Without dead ends: 23483 [2022-07-12 05:48:09,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2022-07-12 05:48:09,320 INFO L413 NwaCegarLoop]: 896 mSDtfsCounter, 60 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:09,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 6217 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:48:09,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23483 states. [2022-07-12 05:48:12,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23483 to 23483. [2022-07-12 05:48:12,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23483 states, 17761 states have (on average 1.5151736951748211) internal successors, (26911), 18344 states have internal predecessors, (26911), 4276 states have call successors, (4276), 1076 states have call predecessors, (4276), 1445 states have return successors, (6330), 4278 states have call predecessors, (6330), 4271 states have call successors, (6330) [2022-07-12 05:48:12,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23483 states to 23483 states and 37517 transitions. [2022-07-12 05:48:12,821 INFO L78 Accepts]: Start accepts. Automaton has 23483 states and 37517 transitions. Word has length 340 [2022-07-12 05:48:12,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:12,822 INFO L495 AbstractCegarLoop]: Abstraction has 23483 states and 37517 transitions. [2022-07-12 05:48:12,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (28), 2 states have call predecessors, (28), 3 states have return successors, (27), 2 states have call predecessors, (27), 3 states have call successors, (27) [2022-07-12 05:48:12,822 INFO L276 IsEmpty]: Start isEmpty. Operand 23483 states and 37517 transitions. [2022-07-12 05:48:12,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-12 05:48:12,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:12,841 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 6, 5, 4, 3, 3, 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] [2022-07-12 05:48:12,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-07-12 05:48:13,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:13,056 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:13,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:13,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2068106103, now seen corresponding path program 1 times [2022-07-12 05:48:13,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:13,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429207455] [2022-07-12 05:48:13,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:13,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-12 05:48:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:48:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:48:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:48:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:48:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:48:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:48:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 05:48:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 05:48:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-12 05:48:13,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:13,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429207455] [2022-07-12 05:48:13,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429207455] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:13,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:13,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-07-12 05:48:13,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50974088] [2022-07-12 05:48:13,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:13,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-12 05:48:13,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:13,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-12 05:48:13,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:48:13,806 INFO L87 Difference]: Start difference. First operand 23483 states and 37517 transitions. Second operand has 16 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 3 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 05:48:27,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:27,518 INFO L93 Difference]: Finished difference Result 56509 states and 95292 transitions. [2022-07-12 05:48:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-12 05:48:27,518 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 3 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 211 [2022-07-12 05:48:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:27,763 INFO L225 Difference]: With dead ends: 56509 [2022-07-12 05:48:27,764 INFO L226 Difference]: Without dead ends: 33087 [2022-07-12 05:48:27,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=175, Invalid=947, Unknown=0, NotChecked=0, Total=1122 [2022-07-12 05:48:27,838 INFO L413 NwaCegarLoop]: 1073 mSDtfsCounter, 2046 mSDsluCounter, 6336 mSDsCounter, 0 mSdLazyCounter, 10310 mSolverCounterSat, 957 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2109 SdHoareTripleChecker+Valid, 7409 SdHoareTripleChecker+Invalid, 11267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 957 IncrementalHoareTripleChecker+Valid, 10310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:27,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2109 Valid, 7409 Invalid, 11267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [957 Valid, 10310 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2022-07-12 05:48:27,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33087 states. [2022-07-12 05:48:31,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33087 to 23704. [2022-07-12 05:48:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23704 states, 17930 states have (on average 1.511154489682097) internal successors, (27095), 18541 states have internal predecessors, (27095), 4276 states have call successors, (4276), 1076 states have call predecessors, (4276), 1497 states have return successors, (6450), 4302 states have call predecessors, (6450), 4271 states have call successors, (6450) [2022-07-12 05:48:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23704 states to 23704 states and 37821 transitions. [2022-07-12 05:48:31,612 INFO L78 Accepts]: Start accepts. Automaton has 23704 states and 37821 transitions. Word has length 211 [2022-07-12 05:48:31,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:31,612 INFO L495 AbstractCegarLoop]: Abstraction has 23704 states and 37821 transitions. [2022-07-12 05:48:31,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.4) internal successors, (126), 10 states have internal predecessors, (126), 3 states have call successors, (24), 6 states have call predecessors, (24), 5 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2022-07-12 05:48:31,612 INFO L276 IsEmpty]: Start isEmpty. Operand 23704 states and 37821 transitions. [2022-07-12 05:48:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2022-07-12 05:48:31,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:31,638 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 5, 5, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 05:48:31,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-12 05:48:31,639 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:31,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash 2080298768, now seen corresponding path program 1 times [2022-07-12 05:48:31,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:31,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182657530] [2022-07-12 05:48:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:31,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:31,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:32,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:48:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:48:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:48:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:48:32,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:48:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 05:48:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 05:48:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-12 05:48:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:32,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:32,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:48:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:48:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:48:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:48:32,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:48:32,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:48:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:48:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:48:32,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-12 05:48:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-12 05:48:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 28 proven. 52 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-07-12 05:48:32,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:32,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182657530] [2022-07-12 05:48:32,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182657530] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:32,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753883182] [2022-07-12 05:48:32,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:32,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:32,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:32,324 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) [2022-07-12 05:48:32,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-12 05:48:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:32,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 3037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:48:32,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-07-12 05:48:32,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:32,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753883182] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:32,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:32,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [18] total 20 [2022-07-12 05:48:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411344529] [2022-07-12 05:48:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:32,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:48:32,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:32,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:48:32,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:48:32,774 INFO L87 Difference]: Start difference. First operand 23704 states and 37821 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 05:48:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:36,586 INFO L93 Difference]: Finished difference Result 47791 states and 77400 transitions. [2022-07-12 05:48:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:48:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 353 [2022-07-12 05:48:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:36,676 INFO L225 Difference]: With dead ends: 47791 [2022-07-12 05:48:36,676 INFO L226 Difference]: Without dead ends: 24172 [2022-07-12 05:48:36,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:48:36,749 INFO L413 NwaCegarLoop]: 820 mSDtfsCounter, 213 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 2436 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 [2022-07-12 05:48:36,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 2436 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:48:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24172 states. [2022-07-12 05:48:40,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24172 to 24172. [2022-07-12 05:48:40,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24172 states, 18386 states have (on average 1.5213205699989123) internal successors, (27971), 18997 states have internal predecessors, (27971), 4276 states have call successors, (4276), 1088 states have call predecessors, (4276), 1509 states have return successors, (6450), 4302 states have call predecessors, (6450), 4271 states have call successors, (6450) [2022-07-12 05:48:40,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24172 states to 24172 states and 38697 transitions. [2022-07-12 05:48:40,286 INFO L78 Accepts]: Start accepts. Automaton has 24172 states and 38697 transitions. Word has length 353 [2022-07-12 05:48:40,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:40,286 INFO L495 AbstractCegarLoop]: Abstraction has 24172 states and 38697 transitions. [2022-07-12 05:48:40,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (37), 2 states have call predecessors, (37), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-07-12 05:48:40,287 INFO L276 IsEmpty]: Start isEmpty. Operand 24172 states and 38697 transitions. [2022-07-12 05:48:40,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-07-12 05:48:40,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:40,305 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 3, 3, 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, 1] [2022-07-12 05:48:40,335 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-12 05:48:40,522 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,SelfDestructingSolverStorable33 [2022-07-12 05:48:40,522 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:40,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:40,523 INFO L85 PathProgramCache]: Analyzing trace with hash -235685513, now seen corresponding path program 1 times [2022-07-12 05:48:40,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:40,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360010426] [2022-07-12 05:48:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:40,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:48:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:48:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-12 05:48:41,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:41,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-12 05:48:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:48:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:48:41,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-12 05:48:41,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-12 05:48:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 05:48:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-07-12 05:48:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-12 05:48:41,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:41,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360010426] [2022-07-12 05:48:41,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360010426] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:41,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136889363] [2022-07-12 05:48:41,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:41,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:41,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:41,085 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) [2022-07-12 05:48:41,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-12 05:48:41,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 1920 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-12 05:48:41,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-07-12 05:48:41,477 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:41,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136889363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:41,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:41,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [20] total 20 [2022-07-12 05:48:41,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267407591] [2022-07-12 05:48:41,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:41,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:48:41,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:41,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:48:41,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380 [2022-07-12 05:48:41,479 INFO L87 Difference]: Start difference. First operand 24172 states and 38697 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 05:48:44,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:44,674 INFO L93 Difference]: Finished difference Result 34445 states and 54551 transitions. [2022-07-12 05:48:44,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 05:48:44,675 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 217 [2022-07-12 05:48:44,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:44,741 INFO L225 Difference]: With dead ends: 34445 [2022-07-12 05:48:44,741 INFO L226 Difference]: Without dead ends: 23079 [2022-07-12 05:48:44,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-12 05:48:44,769 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 8 mSDsluCounter, 1747 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:44,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2627 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:48:44,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23079 states. [2022-07-12 05:48:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23079 to 23079. [2022-07-12 05:48:48,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23079 states, 17509 states have (on average 1.5261294191558628) internal successors, (26721), 18124 states have internal predecessors, (26721), 4064 states have call successors, (4064), 1087 states have call predecessors, (4064), 1505 states have return successors, (5929), 4083 states have call predecessors, (5929), 4059 states have call successors, (5929) [2022-07-12 05:48:48,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23079 states to 23079 states and 36714 transitions. [2022-07-12 05:48:48,130 INFO L78 Accepts]: Start accepts. Automaton has 23079 states and 36714 transitions. Word has length 217 [2022-07-12 05:48:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:48,130 INFO L495 AbstractCegarLoop]: Abstraction has 23079 states and 36714 transitions. [2022-07-12 05:48:48,130 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, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-12 05:48:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 23079 states and 36714 transitions. [2022-07-12 05:48:48,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-07-12 05:48:48,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:48,138 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 10, 5, 5, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 05:48:48,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-12 05:48:48,347 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,SelfDestructingSolverStorable34 [2022-07-12 05:48:48,348 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:48,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:48,349 INFO L85 PathProgramCache]: Analyzing trace with hash -442749337, now seen corresponding path program 1 times [2022-07-12 05:48:48,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:48,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2400759] [2022-07-12 05:48:48,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:48,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:48,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:48,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:48,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:48:48,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:48:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:48:48,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-12 05:48:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:48:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-12 05:48:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-12 05:48:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 05:48:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:48:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:48:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:48:48,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-12 05:48:48,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:48:48,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:48:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-12 05:48:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 05:48:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-12 05:48:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 42 proven. 54 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2022-07-12 05:48:48,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:48,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2400759] [2022-07-12 05:48:48,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2400759] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:48,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38351503] [2022-07-12 05:48:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:48,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:48,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:48,972 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) [2022-07-12 05:48:48,973 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-12 05:48:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:48:49,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 509 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-12 05:48:49,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:49,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38351503] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:49,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:49,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-07-12 05:48:49,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673304032] [2022-07-12 05:48:49,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:49,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:48:49,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:48:49,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:48:49,398 INFO L87 Difference]: Start difference. First operand 23079 states and 36714 transitions. Second operand has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-12 05:48:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:52,848 INFO L93 Difference]: Finished difference Result 46568 states and 75034 transitions. [2022-07-12 05:48:52,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:48:52,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 362 [2022-07-12 05:48:52,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:52,948 INFO L225 Difference]: With dead ends: 46568 [2022-07-12 05:48:52,949 INFO L226 Difference]: Without dead ends: 23547 [2022-07-12 05:48:53,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:48:53,024 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 211 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 2424 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 [2022-07-12 05:48:53,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 2424 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:48:53,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23547 states. [2022-07-12 05:48:56,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23547 to 23547. [2022-07-12 05:48:56,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23547 states, 17965 states have (on average 1.5361536320623435) internal successors, (27597), 18580 states have internal predecessors, (27597), 4064 states have call successors, (4064), 1099 states have call predecessors, (4064), 1517 states have return successors, (5929), 4083 states have call predecessors, (5929), 4059 states have call successors, (5929) [2022-07-12 05:48:56,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23547 states to 23547 states and 37590 transitions. [2022-07-12 05:48:56,557 INFO L78 Accepts]: Start accepts. Automaton has 23547 states and 37590 transitions. Word has length 362 [2022-07-12 05:48:56,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:56,558 INFO L495 AbstractCegarLoop]: Abstraction has 23547 states and 37590 transitions. [2022-07-12 05:48:56,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.75) internal successors, (199), 4 states have internal predecessors, (199), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-07-12 05:48:56,559 INFO L276 IsEmpty]: Start isEmpty. Operand 23547 states and 37590 transitions. [2022-07-12 05:48:56,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-07-12 05:48:56,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:56,568 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 8, 8, 5, 5, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-12 05:48:56,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-12 05:48:56,788 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,SelfDestructingSolverStorable35 [2022-07-12 05:48:56,789 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:56,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:56,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1919239658, now seen corresponding path program 1 times [2022-07-12 05:48:56,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:56,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603908835] [2022-07-12 05:48:56,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:56,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-12 05:48:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:57,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:57,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:48:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:48:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:48:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:48:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:48:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-12 05:48:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-12 05:48:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-12 05:48:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 05:48:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-12 05:48:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:57,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:48:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:48:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:57,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-07-12 05:48:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:48:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:48:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 05:48:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:48:57,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-12 05:48:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-12 05:48:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-07-12 05:48:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 57 proven. 51 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-07-12 05:48:57,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:57,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603908835] [2022-07-12 05:48:57,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603908835] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:57,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468121846] [2022-07-12 05:48:57,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:57,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:57,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:57,412 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) [2022-07-12 05:48:57,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-12 05:48:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:48:57,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:57,858 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 283 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-07-12 05:48:57,858 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:57,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468121846] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:57,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:57,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [13] total 15 [2022-07-12 05:48:57,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268198411] [2022-07-12 05:48:57,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:57,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 05:48:57,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:57,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 05:48:57,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-07-12 05:48:57,860 INFO L87 Difference]: Start difference. First operand 23547 states and 37590 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-07-12 05:49:01,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:01,360 INFO L93 Difference]: Finished difference Result 47504 states and 76738 transitions. [2022-07-12 05:49:01,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 05:49:01,361 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 371 [2022-07-12 05:49:01,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:01,441 INFO L225 Difference]: With dead ends: 47504 [2022-07-12 05:49:01,441 INFO L226 Difference]: Without dead ends: 24015 [2022-07-12 05:49:01,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:49:01,506 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 209 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 2424 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 [2022-07-12 05:49:01,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 2424 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:49:01,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24015 states.