./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_product31.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 a8dba55a6053d72f9111ac5cd147f9f45da0f79494b1facfa57c6480910007fb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 04:31:20,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 04:31:20,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 04:31:20,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 04:31:20,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 04:31:20,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 04:31:20,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 04:31:20,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 04:31:20,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 04:31:20,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 04:31:20,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 04:31:20,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 04:31:20,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 04:31:20,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 04:31:20,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 04:31:20,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 04:31:20,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 04:31:20,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 04:31:20,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 04:31:20,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 04:31:20,885 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 04:31:20,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 04:31:20,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 04:31:20,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 04:31:20,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 04:31:20,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 04:31:20,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 04:31:20,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 04:31:20,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 04:31:20,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 04:31:20,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 04:31:20,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 04:31:20,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 04:31:20,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 04:31:20,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 04:31:20,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 04:31:20,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 04:31:20,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 04:31:20,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 04:31:20,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 04:31:20,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 04:31:20,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 04:31:20,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 04:31:20,915 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 04:31:20,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 04:31:20,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 04:31:20,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 04:31:20,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 04:31:20,916 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 04:31:20,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 04:31:20,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 04:31:20,917 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 04:31:20,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 04:31:20,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 04:31:20,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 04:31:20,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 04:31:20,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 04:31:20,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 04:31:20,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 04:31:20,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 04:31:20,925 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 04:31:20,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 04:31:20,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 04:31:20,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 04:31:20,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 04:31:20,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 04:31:20,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 04:31:20,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:31:20,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 04:31:20,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 04:31:20,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 04:31:20,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 04:31:20,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 04:31:20,928 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 04:31:20,928 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 04:31:20,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 04:31:20,928 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8dba55a6053d72f9111ac5cd147f9f45da0f79494b1facfa57c6480910007fb [2022-07-21 04:31:21,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 04:31:21,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 04:31:21,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 04:31:21,238 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 04:31:21,239 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 04:31:21,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c [2022-07-21 04:31:21,317 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2856be7cc/7a689209140d4c6d947659980f8c9934/FLAG732597351 [2022-07-21 04:31:21,909 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 04:31:21,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c [2022-07-21 04:31:21,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2856be7cc/7a689209140d4c6d947659980f8c9934/FLAG732597351 [2022-07-21 04:31:22,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2856be7cc/7a689209140d4c6d947659980f8c9934 [2022-07-21 04:31:22,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 04:31:22,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 04:31:22,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 04:31:22,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 04:31:22,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 04:31:22,278 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd310bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22, skipping insertion in model container [2022-07-21 04:31:22,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,290 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 04:31:22,334 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 04:31:22,650 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_product31.cil.c[64450,64463] [2022-07-21 04:31:22,685 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:31:22,692 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 04:31:22,805 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_product31.cil.c[64450,64463] [2022-07-21 04:31:22,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 04:31:22,855 INFO L208 MainTranslator]: Completed translation [2022-07-21 04:31:22,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22 WrapperNode [2022-07-21 04:31:22,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 04:31:22,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 04:31:22,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 04:31:22,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 04:31:22,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,952 INFO L137 Inliner]: procedures = 97, calls = 349, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 966 [2022-07-21 04:31:22,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 04:31:22,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 04:31:22,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 04:31:22,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 04:31:22,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:22,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:23,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:23,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:23,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 04:31:23,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 04:31:23,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 04:31:23,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 04:31:23,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (1/1) ... [2022-07-21 04:31:23,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 04:31:23,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:31:23,049 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) [2022-07-21 04:31:23,078 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 [2022-07-21 04:31:23,113 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2022-07-21 04:31:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2022-07-21 04:31:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-21 04:31:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-21 04:31:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-21 04:31:23,114 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-21 04:31:23,114 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2022-07-21 04:31:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2022-07-21 04:31:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 04:31:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 04:31:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-21 04:31:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-21 04:31:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-21 04:31:23,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-21 04:31:23,116 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-21 04:31:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-21 04:31:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-21 04:31:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-21 04:31:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-21 04:31:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-21 04:31:23,117 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-21 04:31:23,117 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-21 04:31:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 04:31:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-21 04:31:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2022-07-21 04:31:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2022-07-21 04:31:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2022-07-21 04:31:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-21 04:31:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-21 04:31:23,118 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-21 04:31:23,118 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-21 04:31:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 04:31:23,119 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 04:31:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2022-07-21 04:31:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2022-07-21 04:31:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-21 04:31:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-21 04:31:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-21 04:31:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-21 04:31:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-21 04:31:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-21 04:31:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-21 04:31:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-21 04:31:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-21 04:31:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-21 04:31:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-21 04:31:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-21 04:31:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-21 04:31:23,121 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-21 04:31:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 04:31:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-21 04:31:23,122 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-21 04:31:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 04:31:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 04:31:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-21 04:31:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-21 04:31:23,231 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 04:31:23,232 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 04:31:24,173 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 04:31:24,187 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 04:31:24,187 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 04:31:24,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:24 BoogieIcfgContainer [2022-07-21 04:31:24,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 04:31:24,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 04:31:24,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 04:31:24,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 04:31:24,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:31:22" (1/3) ... [2022-07-21 04:31:24,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4f0e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:31:24, skipping insertion in model container [2022-07-21 04:31:24,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:31:22" (2/3) ... [2022-07-21 04:31:24,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e4f0e9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:31:24, skipping insertion in model container [2022-07-21 04:31:24,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:31:24" (3/3) ... [2022-07-21 04:31:24,197 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product31.cil.c [2022-07-21 04:31:24,206 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 04:31:24,206 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 04:31:24,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 04:31:24,280 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@226e247e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2fc4c27a [2022-07-21 04:31:24,280 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 04:31:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 596 states, 466 states have (on average 1.6802575107296138) internal successors, (783), 487 states have internal predecessors, (783), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2022-07-21 04:31:24,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-21 04:31:24,305 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:24,306 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] [2022-07-21 04:31:24,306 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:24,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:24,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1539098875, now seen corresponding path program 1 times [2022-07-21 04:31:24,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:24,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471130108] [2022-07-21 04:31:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:24,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:24,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:31:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-21 04:31:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:24,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:24,989 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:24,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:24,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471130108] [2022-07-21 04:31:24,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471130108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:24,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:24,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:24,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37185312] [2022-07-21 04:31:24,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:24,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:24,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:25,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:25,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:25,018 INFO L87 Difference]: Start difference. First operand has 596 states, 466 states have (on average 1.6802575107296138) internal successors, (783), 487 states have internal predecessors, (783), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:28,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:28,653 INFO L93 Difference]: Finished difference Result 1433 states and 2411 transitions. [2022-07-21 04:31:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:31:28,655 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2022-07-21 04:31:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:28,669 INFO L225 Difference]: With dead ends: 1433 [2022-07-21 04:31:28,670 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:28,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:31:28,680 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 1952 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 2459 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2039 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 2459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:28,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2039 Valid, 2316 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 2459 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 04:31:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:28,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:28,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6760869565217391) internal successors, (771), 479 states have internal predecessors, (771), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 970 transitions. [2022-07-21 04:31:28,769 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 970 transitions. Word has length 104 [2022-07-21 04:31:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:28,770 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 970 transitions. [2022-07-21 04:31:28,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:28,770 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 970 transitions. [2022-07-21 04:31:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 04:31:28,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:28,775 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] [2022-07-21 04:31:28,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 04:31:28,776 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:28,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:28,776 INFO L85 PathProgramCache]: Analyzing trace with hash 351124629, now seen corresponding path program 1 times [2022-07-21 04:31:28,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:28,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998235700] [2022-07-21 04:31:28,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:28,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:28,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 04:31:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:29,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:29,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:29,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:29,060 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:29,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:29,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998235700] [2022-07-21 04:31:29,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998235700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:29,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:29,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:29,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530055899] [2022-07-21 04:31:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:29,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:29,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:29,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:29,064 INFO L87 Difference]: Start difference. First operand 588 states and 970 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:32,598 INFO L93 Difference]: Finished difference Result 1419 states and 2373 transitions. [2022-07-21 04:31:32,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:31:32,599 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2022-07-21 04:31:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:32,607 INFO L225 Difference]: With dead ends: 1419 [2022-07-21 04:31:32,607 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:32,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:31:32,614 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 1941 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 2457 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 3065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:32,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 2297 Invalid, 3065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2457 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 04:31:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.673913043478261) internal successors, (770), 479 states have internal predecessors, (770), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 969 transitions. [2022-07-21 04:31:32,701 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 969 transitions. Word has length 107 [2022-07-21 04:31:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:32,702 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 969 transitions. [2022-07-21 04:31:32,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:32,703 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 969 transitions. [2022-07-21 04:31:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 04:31:32,708 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:32,708 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] [2022-07-21 04:31:32,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 04:31:32,709 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:32,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:32,709 INFO L85 PathProgramCache]: Analyzing trace with hash 401682534, now seen corresponding path program 1 times [2022-07-21 04:31:32,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:32,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071321984] [2022-07-21 04:31:32,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:32,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:32,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:32,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:32,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 04:31:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:32,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 04:31:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:32,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:32,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:33,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:33,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:33,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:33,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:33,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071321984] [2022-07-21 04:31:33,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071321984] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:33,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:33,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:33,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577965572] [2022-07-21 04:31:33,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:33,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:33,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:33,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:33,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:33,030 INFO L87 Difference]: Start difference. First operand 588 states and 969 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:36,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:36,942 INFO L93 Difference]: Finished difference Result 1419 states and 2372 transitions. [2022-07-21 04:31:36,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:31:36,943 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2022-07-21 04:31:36,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:36,949 INFO L225 Difference]: With dead ends: 1419 [2022-07-21 04:31:36,949 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:36,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:31:36,957 INFO L413 NwaCegarLoop]: 1005 mSDtfsCounter, 1011 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1098 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 3000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:36,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1098 Valid, 2422 Invalid, 3000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2721 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-21 04:31:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6717391304347826) internal successors, (769), 479 states have internal predecessors, (769), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:37,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 968 transitions. [2022-07-21 04:31:37,010 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 968 transitions. Word has length 108 [2022-07-21 04:31:37,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:37,011 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 968 transitions. [2022-07-21 04:31:37,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:37,011 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 968 transitions. [2022-07-21 04:31:37,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-07-21 04:31:37,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:37,017 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] [2022-07-21 04:31:37,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 04:31:37,017 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:37,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:37,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1268972239, now seen corresponding path program 1 times [2022-07-21 04:31:37,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:37,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507114946] [2022-07-21 04:31:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:37,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:37,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-21 04:31:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-07-21 04:31:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:37,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:37,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:37,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:37,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:37,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:37,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507114946] [2022-07-21 04:31:37,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507114946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:37,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:37,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:37,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837862364] [2022-07-21 04:31:37,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:37,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:37,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:37,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:37,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:37,346 INFO L87 Difference]: Start difference. First operand 588 states and 968 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:40,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:40,616 INFO L93 Difference]: Finished difference Result 1419 states and 2371 transitions. [2022-07-21 04:31:40,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:31:40,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2022-07-21 04:31:40,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:40,620 INFO L225 Difference]: With dead ends: 1419 [2022-07-21 04:31:40,620 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:40,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:31:40,623 INFO L413 NwaCegarLoop]: 1001 mSDtfsCounter, 1935 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 2453 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2022 SdHoareTripleChecker+Valid, 2283 SdHoareTripleChecker+Invalid, 3068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 2453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:40,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2022 Valid, 2283 Invalid, 3068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 2453 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-21 04:31:40,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:40,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:40,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6695652173913043) internal successors, (768), 479 states have internal predecessors, (768), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:40,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 967 transitions. [2022-07-21 04:31:40,663 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 967 transitions. Word has length 109 [2022-07-21 04:31:40,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:40,663 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 967 transitions. [2022-07-21 04:31:40,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:40,664 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 967 transitions. [2022-07-21 04:31:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-07-21 04:31:40,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:40,666 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] [2022-07-21 04:31:40,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 04:31:40,666 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:40,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:40,667 INFO L85 PathProgramCache]: Analyzing trace with hash -462645182, now seen corresponding path program 1 times [2022-07-21 04:31:40,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:40,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875866980] [2022-07-21 04:31:40,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:40,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 04:31:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-21 04:31:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:40,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:40,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:40,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875866980] [2022-07-21 04:31:40,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875866980] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:40,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:40,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:40,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136739037] [2022-07-21 04:31:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:40,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:40,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:40,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:40,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:40,948 INFO L87 Difference]: Start difference. First operand 588 states and 967 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:44,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:44,749 INFO L93 Difference]: Finished difference Result 1419 states and 2370 transitions. [2022-07-21 04:31:44,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:31:44,750 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2022-07-21 04:31:44,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:44,754 INFO L225 Difference]: With dead ends: 1419 [2022-07-21 04:31:44,754 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:44,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:31:44,757 INFO L413 NwaCegarLoop]: 1008 mSDtfsCounter, 1005 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 2717 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 2995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 2717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:44,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 2431 Invalid, 2995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 2717 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 04:31:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:44,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6673913043478261) internal successors, (767), 479 states have internal predecessors, (767), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:44,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 966 transitions. [2022-07-21 04:31:44,800 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 966 transitions. Word has length 110 [2022-07-21 04:31:44,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:44,800 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 966 transitions. [2022-07-21 04:31:44,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:44,801 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 966 transitions. [2022-07-21 04:31:44,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-21 04:31:44,803 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:44,803 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] [2022-07-21 04:31:44,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 04:31:44,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:44,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:44,804 INFO L85 PathProgramCache]: Analyzing trace with hash -179292723, now seen corresponding path program 1 times [2022-07-21 04:31:44,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:44,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103646457] [2022-07-21 04:31:44,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:44,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:44,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:44,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:44,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:31:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-21 04:31:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:45,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:45,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:45,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:45,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103646457] [2022-07-21 04:31:45,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103646457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:45,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:45,119 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:45,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14043395] [2022-07-21 04:31:45,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:45,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:45,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:45,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:45,120 INFO L87 Difference]: Start difference. First operand 588 states and 966 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:48,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:48,555 INFO L93 Difference]: Finished difference Result 1379 states and 2294 transitions. [2022-07-21 04:31:48,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:31:48,555 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2022-07-21 04:31:48,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:48,574 INFO L225 Difference]: With dead ends: 1379 [2022-07-21 04:31:48,584 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:48,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:31:48,588 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 1054 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:48,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2379 Invalid, 3014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [343 Valid, 2671 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 04:31:48,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:48,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:48,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6565217391304348) internal successors, (762), 479 states have internal predecessors, (762), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:48,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 961 transitions. [2022-07-21 04:31:48,647 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 961 transitions. Word has length 111 [2022-07-21 04:31:48,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:48,647 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 961 transitions. [2022-07-21 04:31:48,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 961 transitions. [2022-07-21 04:31:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-07-21 04:31:48,650 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:48,650 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] [2022-07-21 04:31:48,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 04:31:48,650 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1651817026, now seen corresponding path program 1 times [2022-07-21 04:31:48,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:48,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457692554] [2022-07-21 04:31:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:48,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:48,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:48,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:31:48,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-21 04:31:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:48,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:48,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:48,926 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:48,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:48,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457692554] [2022-07-21 04:31:48,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457692554] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:48,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:48,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:48,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871080182] [2022-07-21 04:31:48,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:48,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:48,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:48,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:48,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:48,929 INFO L87 Difference]: Start difference. First operand 588 states and 961 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:51,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:51,961 INFO L93 Difference]: Finished difference Result 1379 states and 2289 transitions. [2022-07-21 04:31:51,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:31:51,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2022-07-21 04:31:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:51,979 INFO L225 Difference]: With dead ends: 1379 [2022-07-21 04:31:51,979 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:51,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:31:51,983 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 1966 mSDsluCounter, 1297 mSDsCounter, 0 mSdLazyCounter, 2395 mSolverCounterSat, 660 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 3055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 660 IncrementalHoareTripleChecker+Valid, 2395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:51,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 2252 Invalid, 3055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [660 Valid, 2395 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 04:31:51,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:52,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:52,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6456521739130434) internal successors, (757), 479 states have internal predecessors, (757), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:52,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 956 transitions. [2022-07-21 04:31:52,030 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 956 transitions. Word has length 112 [2022-07-21 04:31:52,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:52,031 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 956 transitions. [2022-07-21 04:31:52,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:52,032 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 956 transitions. [2022-07-21 04:31:52,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 04:31:52,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:52,035 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] [2022-07-21 04:31:52,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 04:31:52,035 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:52,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1031529806, now seen corresponding path program 1 times [2022-07-21 04:31:52,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:52,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971421895] [2022-07-21 04:31:52,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:52,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:52,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:31:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:31:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:52,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:52,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:52,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:52,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971421895] [2022-07-21 04:31:52,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971421895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:52,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:52,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:52,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985612314] [2022-07-21 04:31:52,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:52,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:52,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:52,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:52,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:52,371 INFO L87 Difference]: Start difference. First operand 588 states and 956 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:55,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:55,443 INFO L93 Difference]: Finished difference Result 1379 states and 2284 transitions. [2022-07-21 04:31:55,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:31:55,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2022-07-21 04:31:55,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:55,448 INFO L225 Difference]: With dead ends: 1379 [2022-07-21 04:31:55,448 INFO L226 Difference]: Without dead ends: 849 [2022-07-21 04:31:55,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:31:55,450 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 2001 mSDsluCounter, 1275 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:55,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 2219 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 04:31:55,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2022-07-21 04:31:55,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 588. [2022-07-21 04:31:55,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 460 states have (on average 1.6347826086956523) internal successors, (752), 479 states have internal predecessors, (752), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:55,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 951 transitions. [2022-07-21 04:31:55,504 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 951 transitions. Word has length 113 [2022-07-21 04:31:55,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:55,505 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 951 transitions. [2022-07-21 04:31:55,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:55,505 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 951 transitions. [2022-07-21 04:31:55,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 04:31:55,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:55,508 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] [2022-07-21 04:31:55,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 04:31:55,508 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:55,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1655596120, now seen corresponding path program 1 times [2022-07-21 04:31:55,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:55,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726333141] [2022-07-21 04:31:55,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:55,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:55,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:31:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:31:55,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:55,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:55,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:55,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:55,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726333141] [2022-07-21 04:31:55,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726333141] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:55,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:55,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:55,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850719738] [2022-07-21 04:31:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:55,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:55,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:55,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:55,796 INFO L87 Difference]: Start difference. First operand 588 states and 951 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:59,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:31:59,050 INFO L93 Difference]: Finished difference Result 1394 states and 2299 transitions. [2022-07-21 04:31:59,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 04:31:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2022-07-21 04:31:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:31:59,083 INFO L225 Difference]: With dead ends: 1394 [2022-07-21 04:31:59,083 INFO L226 Difference]: Without dead ends: 870 [2022-07-21 04:31:59,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:31:59,090 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 2000 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 628 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 2999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 628 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-21 04:31:59,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2087 Valid, 2254 Invalid, 2999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [628 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-21 04:31:59,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-07-21 04:31:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 590. [2022-07-21 04:31:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 462 states have (on average 1.632034632034632) internal successors, (754), 481 states have internal predecessors, (754), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:31:59,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 953 transitions. [2022-07-21 04:31:59,223 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 953 transitions. Word has length 114 [2022-07-21 04:31:59,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:31:59,225 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 953 transitions. [2022-07-21 04:31:59,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:31:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 953 transitions. [2022-07-21 04:31:59,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 04:31:59,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:31:59,228 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] [2022-07-21 04:31:59,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 04:31:59,228 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:31:59,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:31:59,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1929109881, now seen corresponding path program 1 times [2022-07-21 04:31:59,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:31:59,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900369560] [2022-07-21 04:31:59,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:31:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:31:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:31:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:31:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-21 04:31:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:59,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:31:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:31:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:31:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:31:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:31:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:31:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:31:59,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:31:59,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900369560] [2022-07-21 04:31:59,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900369560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:31:59,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:31:59,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:31:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264562213] [2022-07-21 04:31:59,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:31:59,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:31:59,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:31:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:31:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:31:59,542 INFO L87 Difference]: Start difference. First operand 590 states and 953 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:02,511 INFO L93 Difference]: Finished difference Result 1385 states and 2285 transitions. [2022-07-21 04:32:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:32:02,512 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2022-07-21 04:32:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:02,517 INFO L225 Difference]: With dead ends: 1385 [2022-07-21 04:32:02,517 INFO L226 Difference]: Without dead ends: 853 [2022-07-21 04:32:02,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:32:02,519 INFO L413 NwaCegarLoop]: 958 mSDtfsCounter, 1982 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 2351 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 2988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 2351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:02,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 2259 Invalid, 2988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 2351 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 04:32:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2022-07-21 04:32:02,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 590. [2022-07-21 04:32:02,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 462 states have (on average 1.621212121212121) internal successors, (749), 481 states have internal predecessors, (749), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:02,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 948 transitions. [2022-07-21 04:32:02,601 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 948 transitions. Word has length 114 [2022-07-21 04:32:02,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:02,602 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 948 transitions. [2022-07-21 04:32:02,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:02,602 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 948 transitions. [2022-07-21 04:32:02,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 04:32:02,604 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:02,604 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] [2022-07-21 04:32:02,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 04:32:02,605 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:02,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:02,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1108944620, now seen corresponding path program 1 times [2022-07-21 04:32:02,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:02,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037494677] [2022-07-21 04:32:02,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:02,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:32:02,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:02,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:02,921 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:02,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:02,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037494677] [2022-07-21 04:32:02,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037494677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:02,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:02,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:02,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925802649] [2022-07-21 04:32:02,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:02,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:02,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:02,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:02,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:02,923 INFO L87 Difference]: Start difference. First operand 590 states and 948 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:06,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:06,796 INFO L93 Difference]: Finished difference Result 1398 states and 2296 transitions. [2022-07-21 04:32:06,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 04:32:06,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-21 04:32:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:06,809 INFO L225 Difference]: With dead ends: 1398 [2022-07-21 04:32:06,809 INFO L226 Difference]: Without dead ends: 874 [2022-07-21 04:32:06,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:32:06,814 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 1545 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 2867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:06,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2298 Invalid, 2867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 04:32:06,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 874 states. [2022-07-21 04:32:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 874 to 593. [2022-07-21 04:32:06,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 465 states have (on average 1.6172043010752688) internal successors, (752), 484 states have internal predecessors, (752), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:06,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 951 transitions. [2022-07-21 04:32:06,954 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 951 transitions. Word has length 115 [2022-07-21 04:32:06,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:06,954 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 951 transitions. [2022-07-21 04:32:06,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:06,955 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 951 transitions. [2022-07-21 04:32:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 04:32:06,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:06,957 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] [2022-07-21 04:32:06,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 04:32:06,957 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:06,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:06,957 INFO L85 PathProgramCache]: Analyzing trace with hash 992471959, now seen corresponding path program 1 times [2022-07-21 04:32:06,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:06,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317171086] [2022-07-21 04:32:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:06,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:07,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-21 04:32:07,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:07,351 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:07,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:07,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317171086] [2022-07-21 04:32:07,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317171086] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:07,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:07,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:07,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073876236] [2022-07-21 04:32:07,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:07,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:07,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:07,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:07,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:07,353 INFO L87 Difference]: Start difference. First operand 593 states and 951 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:11,039 INFO L93 Difference]: Finished difference Result 1394 states and 2289 transitions. [2022-07-21 04:32:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:32:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2022-07-21 04:32:11,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:11,043 INFO L225 Difference]: With dead ends: 1394 [2022-07-21 04:32:11,043 INFO L226 Difference]: Without dead ends: 859 [2022-07-21 04:32:11,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:32:11,045 INFO L413 NwaCegarLoop]: 956 mSDtfsCounter, 1983 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 630 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2070 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 630 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:11,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2070 Valid, 2255 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [630 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-21 04:32:11,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2022-07-21 04:32:11,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 593. [2022-07-21 04:32:11,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 465 states have (on average 1.6064516129032258) internal successors, (747), 484 states have internal predecessors, (747), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 946 transitions. [2022-07-21 04:32:11,103 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 946 transitions. Word has length 115 [2022-07-21 04:32:11,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:11,103 INFO L495 AbstractCegarLoop]: Abstraction has 593 states and 946 transitions. [2022-07-21 04:32:11,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:11,104 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 946 transitions. [2022-07-21 04:32:11,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:32:11,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:11,106 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] [2022-07-21 04:32:11,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 04:32:11,106 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:11,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:11,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1201106093, now seen corresponding path program 1 times [2022-07-21 04:32:11,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:11,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962659175] [2022-07-21 04:32:11,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:11,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:11,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:32:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:11,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:11,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:11,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:11,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962659175] [2022-07-21 04:32:11,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962659175] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:11,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:11,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:11,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110957331] [2022-07-21 04:32:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:11,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:11,367 INFO L87 Difference]: Start difference. First operand 593 states and 946 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:15,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:15,128 INFO L93 Difference]: Finished difference Result 1404 states and 2295 transitions. [2022-07-21 04:32:15,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 04:32:15,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2022-07-21 04:32:15,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:15,132 INFO L225 Difference]: With dead ends: 1404 [2022-07-21 04:32:15,132 INFO L226 Difference]: Without dead ends: 880 [2022-07-21 04:32:15,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:32:15,134 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 1056 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 2569 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1143 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 2864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 2569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:15,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1143 Valid, 2375 Invalid, 2864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 2569 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-21 04:32:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2022-07-21 04:32:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 597. [2022-07-21 04:32:15,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 469 states have (on average 1.6012793176972282) internal successors, (751), 488 states have internal predecessors, (751), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:15,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 950 transitions. [2022-07-21 04:32:15,195 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 950 transitions. Word has length 116 [2022-07-21 04:32:15,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:15,197 INFO L495 AbstractCegarLoop]: Abstraction has 597 states and 950 transitions. [2022-07-21 04:32:15,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:15,197 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 950 transitions. [2022-07-21 04:32:15,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:32:15,199 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:15,199 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] [2022-07-21 04:32:15,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 04:32:15,199 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:15,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:15,200 INFO L85 PathProgramCache]: Analyzing trace with hash 2048988876, now seen corresponding path program 1 times [2022-07-21 04:32:15,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:15,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789235731] [2022-07-21 04:32:15,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:15,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:15,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:32:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:15,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:15,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:15,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:15,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789235731] [2022-07-21 04:32:15,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789235731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:15,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:15,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 04:32:15,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103775676] [2022-07-21 04:32:15,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:15,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 04:32:15,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:15,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 04:32:15,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:32:15,505 INFO L87 Difference]: Start difference. First operand 597 states and 950 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 04:32:20,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:20,101 INFO L93 Difference]: Finished difference Result 1410 states and 2303 transitions. [2022-07-21 04:32:20,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 04:32:20,101 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2022-07-21 04:32:20,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:20,106 INFO L225 Difference]: With dead ends: 1410 [2022-07-21 04:32:20,106 INFO L226 Difference]: Without dead ends: 889 [2022-07-21 04:32:20,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-21 04:32:20,108 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 2003 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 627 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 5491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 627 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:20,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 3687 Invalid, 5491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [627 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-21 04:32:20,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2022-07-21 04:32:20,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 608. [2022-07-21 04:32:20,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 477 states have (on average 1.5953878406708595) internal successors, (761), 498 states have internal predecessors, (761), 103 states have call successors, (103), 26 states have call predecessors, (103), 27 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2022-07-21 04:32:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 964 transitions. [2022-07-21 04:32:20,177 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 964 transitions. Word has length 116 [2022-07-21 04:32:20,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:20,177 INFO L495 AbstractCegarLoop]: Abstraction has 608 states and 964 transitions. [2022-07-21 04:32:20,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 04:32:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 964 transitions. [2022-07-21 04:32:20,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 04:32:20,180 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:20,180 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] [2022-07-21 04:32:20,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 04:32:20,180 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:20,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:20,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1730457971, now seen corresponding path program 1 times [2022-07-21 04:32:20,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:20,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773297247] [2022-07-21 04:32:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:20,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:32:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:20,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:20,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:20,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:20,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:20,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773297247] [2022-07-21 04:32:20,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773297247] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:20,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:20,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:20,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409699948] [2022-07-21 04:32:20,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:20,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:20,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:20,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:20,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:20,458 INFO L87 Difference]: Start difference. First operand 608 states and 964 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:23,464 INFO L93 Difference]: Finished difference Result 1467 states and 2371 transitions. [2022-07-21 04:32:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 04:32:23,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2022-07-21 04:32:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:23,469 INFO L225 Difference]: With dead ends: 1467 [2022-07-21 04:32:23,469 INFO L226 Difference]: Without dead ends: 857 [2022-07-21 04:32:23,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-21 04:32:23,471 INFO L413 NwaCegarLoop]: 969 mSDtfsCounter, 1905 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 615 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1992 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 2969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 615 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:23,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1992 Valid, 2254 Invalid, 2969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [615 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-21 04:32:23,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2022-07-21 04:32:23,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 589. [2022-07-21 04:32:23,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 461 states have (on average 1.6030368763557483) internal successors, (739), 480 states have internal predecessors, (739), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 938 transitions. [2022-07-21 04:32:23,546 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 938 transitions. Word has length 116 [2022-07-21 04:32:23,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:23,546 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 938 transitions. [2022-07-21 04:32:23,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 938 transitions. [2022-07-21 04:32:23,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 04:32:23,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:23,548 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] [2022-07-21 04:32:23,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 04:32:23,549 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:23,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:23,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1953009735, now seen corresponding path program 1 times [2022-07-21 04:32:23,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:23,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983656910] [2022-07-21 04:32:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-21 04:32:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:23,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:23,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:23,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:23,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983656910] [2022-07-21 04:32:23,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983656910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:23,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:23,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647551628] [2022-07-21 04:32:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:23,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:23,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:23,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:23,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:23,841 INFO L87 Difference]: Start difference. First operand 589 states and 938 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:26,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:26,971 INFO L93 Difference]: Finished difference Result 1402 states and 2286 transitions. [2022-07-21 04:32:26,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 04:32:26,972 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2022-07-21 04:32:26,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:26,979 INFO L225 Difference]: With dead ends: 1402 [2022-07-21 04:32:26,980 INFO L226 Difference]: Without dead ends: 878 [2022-07-21 04:32:26,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-07-21 04:32:26,982 INFO L413 NwaCegarLoop]: 954 mSDtfsCounter, 1948 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 2318 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 2943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 2318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:26,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 2241 Invalid, 2943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 2318 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 04:32:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2022-07-21 04:32:27,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 594. [2022-07-21 04:32:27,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 466 states have (on average 1.5965665236051503) internal successors, (744), 485 states have internal predecessors, (744), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:27,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 943 transitions. [2022-07-21 04:32:27,054 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 943 transitions. Word has length 117 [2022-07-21 04:32:27,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:27,054 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 943 transitions. [2022-07-21 04:32:27,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:27,055 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 943 transitions. [2022-07-21 04:32:27,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 04:32:27,056 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:27,056 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] [2022-07-21 04:32:27,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 04:32:27,057 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:27,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:27,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2048301696, now seen corresponding path program 1 times [2022-07-21 04:32:27,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:27,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520151872] [2022-07-21 04:32:27,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:27,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:27,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:27,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:27,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:27,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:27,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:27,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520151872] [2022-07-21 04:32:27,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520151872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:27,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:27,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:27,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608542466] [2022-07-21 04:32:27,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:27,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:27,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:27,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:27,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:27,367 INFO L87 Difference]: Start difference. First operand 594 states and 943 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:30,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:30,428 INFO L93 Difference]: Finished difference Result 1400 states and 2281 transitions. [2022-07-21 04:32:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:32:30,429 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2022-07-21 04:32:30,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:30,437 INFO L225 Difference]: With dead ends: 1400 [2022-07-21 04:32:30,438 INFO L226 Difference]: Without dead ends: 855 [2022-07-21 04:32:30,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:32:30,440 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 1926 mSDsluCounter, 1287 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2013 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:30,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2013 Valid, 2235 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-21 04:32:30,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-07-21 04:32:30,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 594. [2022-07-21 04:32:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 466 states have (on average 1.5879828326180256) internal successors, (740), 485 states have internal predecessors, (740), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2022-07-21 04:32:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 939 transitions. [2022-07-21 04:32:30,509 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 939 transitions. Word has length 118 [2022-07-21 04:32:30,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:30,510 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 939 transitions. [2022-07-21 04:32:30,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-07-21 04:32:30,510 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 939 transitions. [2022-07-21 04:32:30,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 04:32:30,512 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:30,512 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] [2022-07-21 04:32:30,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 04:32:30,512 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:30,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:30,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1053607998, now seen corresponding path program 1 times [2022-07-21 04:32:30,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:30,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101820302] [2022-07-21 04:32:30,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:30,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:30,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:30,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:30,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:30,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:30,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:30,827 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-21 04:32:30,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:30,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101820302] [2022-07-21 04:32:30,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101820302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:30,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:30,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 04:32:30,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920317225] [2022-07-21 04:32:30,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:30,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 04:32:30,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:30,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 04:32:30,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-21 04:32:30,829 INFO L87 Difference]: Start difference. First operand 594 states and 939 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 04:32:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:36,587 INFO L93 Difference]: Finished difference Result 2062 states and 3448 transitions. [2022-07-21 04:32:36,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 04:32:36,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 118 [2022-07-21 04:32:36,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:36,596 INFO L225 Difference]: With dead ends: 2062 [2022-07-21 04:32:36,596 INFO L226 Difference]: Without dead ends: 1546 [2022-07-21 04:32:36,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:32:36,598 INFO L413 NwaCegarLoop]: 1614 mSDtfsCounter, 2803 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 1371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2816 SdHoareTripleChecker+Valid, 2648 SdHoareTripleChecker+Invalid, 4012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1371 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:36,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2816 Valid, 2648 Invalid, 4012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1371 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-21 04:32:36,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1546 states. [2022-07-21 04:32:36,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1546 to 1147. [2022-07-21 04:32:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 896 states have (on average 1.6272321428571428) internal successors, (1458), 928 states have internal predecessors, (1458), 202 states have call successors, (202), 46 states have call predecessors, (202), 48 states have return successors, (206), 196 states have call predecessors, (206), 197 states have call successors, (206) [2022-07-21 04:32:36,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1866 transitions. [2022-07-21 04:32:36,765 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1866 transitions. Word has length 118 [2022-07-21 04:32:36,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:36,765 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1866 transitions. [2022-07-21 04:32:36,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 3 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-07-21 04:32:36,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1866 transitions. [2022-07-21 04:32:36,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 04:32:36,767 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:36,767 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] [2022-07-21 04:32:36,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 04:32:36,768 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:36,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash 869620036, now seen corresponding path program 1 times [2022-07-21 04:32:36,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:36,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972866212] [2022-07-21 04:32:36,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:36,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:36,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:36,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:36,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:36,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:36,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:36,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:37,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:32:37,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-21 04:32:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-21 04:32:37,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:37,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 04:32:37,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:37,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972866212] [2022-07-21 04:32:37,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972866212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:37,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:37,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:32:37,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680566406] [2022-07-21 04:32:37,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:37,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:32:37,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:37,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:32:37,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:32:37,122 INFO L87 Difference]: Start difference. First operand 1147 states and 1866 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:40,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:40,951 INFO L93 Difference]: Finished difference Result 2597 states and 4413 transitions. [2022-07-21 04:32:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:32:40,952 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2022-07-21 04:32:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:40,959 INFO L225 Difference]: With dead ends: 2597 [2022-07-21 04:32:40,959 INFO L226 Difference]: Without dead ends: 1528 [2022-07-21 04:32:40,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:32:40,965 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 2303 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 3360 mSolverCounterSat, 853 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 2605 SdHoareTripleChecker+Invalid, 4213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 853 IncrementalHoareTripleChecker+Valid, 3360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:40,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 2605 Invalid, 4213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [853 Valid, 3360 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 04:32:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1528 states. [2022-07-21 04:32:41,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1528 to 1155. [2022-07-21 04:32:41,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 902 states have (on average 1.623059866962306) internal successors, (1464), 934 states have internal predecessors, (1464), 202 states have call successors, (202), 48 states have call predecessors, (202), 50 states have return successors, (208), 196 states have call predecessors, (208), 197 states have call successors, (208) [2022-07-21 04:32:41,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1874 transitions. [2022-07-21 04:32:41,136 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1874 transitions. Word has length 118 [2022-07-21 04:32:41,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:41,136 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1874 transitions. [2022-07-21 04:32:41,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 6 states have internal predecessors, (84), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:41,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1874 transitions. [2022-07-21 04:32:41,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 04:32:41,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:41,138 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] [2022-07-21 04:32:41,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 04:32:41,139 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:41,139 INFO L85 PathProgramCache]: Analyzing trace with hash -2004879898, now seen corresponding path program 1 times [2022-07-21 04:32:41,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:41,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579408966] [2022-07-21 04:32:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:41,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:41,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 04:32:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-21 04:32:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 04:32:41,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-21 04:32:41,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-21 04:32:41,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 04:32:41,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:41,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579408966] [2022-07-21 04:32:41,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579408966] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:41,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:41,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:32:41,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539320743] [2022-07-21 04:32:41,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:41,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:32:41,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:41,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:32:41,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:32:41,556 INFO L87 Difference]: Start difference. First operand 1155 states and 1874 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:45,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:45,863 INFO L93 Difference]: Finished difference Result 2615 states and 4423 transitions. [2022-07-21 04:32:45,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:32:45,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-07-21 04:32:45,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:45,869 INFO L225 Difference]: With dead ends: 2615 [2022-07-21 04:32:45,869 INFO L226 Difference]: Without dead ends: 1538 [2022-07-21 04:32:45,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:32:45,873 INFO L413 NwaCegarLoop]: 952 mSDtfsCounter, 1845 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 3542 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1855 SdHoareTripleChecker+Valid, 2687 SdHoareTripleChecker+Invalid, 4218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 3542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:45,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1855 Valid, 2687 Invalid, 4218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 3542 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-21 04:32:45,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1538 states. [2022-07-21 04:32:46,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1538 to 1165. [2022-07-21 04:32:46,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 910 states have (on average 1.6175824175824176) internal successors, (1472), 942 states have internal predecessors, (1472), 202 states have call successors, (202), 50 states have call predecessors, (202), 52 states have return successors, (210), 196 states have call predecessors, (210), 197 states have call successors, (210) [2022-07-21 04:32:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1884 transitions. [2022-07-21 04:32:46,047 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1884 transitions. Word has length 120 [2022-07-21 04:32:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:46,048 INFO L495 AbstractCegarLoop]: Abstraction has 1165 states and 1884 transitions. [2022-07-21 04:32:46,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 6 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1884 transitions. [2022-07-21 04:32:46,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 04:32:46,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:46,050 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] [2022-07-21 04:32:46,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 04:32:46,050 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:46,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:46,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1716398020, now seen corresponding path program 1 times [2022-07-21 04:32:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:46,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883874677] [2022-07-21 04:32:46,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:46,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:46,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 04:32:46,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 04:32:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 04:32:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 04:32:46,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-21 04:32:46,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:46,352 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 04:32:46,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:46,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883874677] [2022-07-21 04:32:46,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883874677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:46,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:46,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:32:46,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796823592] [2022-07-21 04:32:46,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:46,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:32:46,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:46,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:32:46,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:32:46,354 INFO L87 Difference]: Start difference. First operand 1165 states and 1884 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:50,336 INFO L93 Difference]: Finished difference Result 2637 states and 4437 transitions. [2022-07-21 04:32:50,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:32:50,336 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-21 04:32:50,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:50,343 INFO L225 Difference]: With dead ends: 2637 [2022-07-21 04:32:50,343 INFO L226 Difference]: Without dead ends: 1550 [2022-07-21 04:32:50,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:32:50,348 INFO L413 NwaCegarLoop]: 948 mSDtfsCounter, 2746 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 3312 mSolverCounterSat, 1004 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 4316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1004 IncrementalHoareTripleChecker+Valid, 3312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:50,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 2548 Invalid, 4316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1004 Valid, 3312 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-21 04:32:50,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1550 states. [2022-07-21 04:32:50,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1550 to 1177. [2022-07-21 04:32:50,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1177 states, 920 states have (on average 1.6108695652173912) internal successors, (1482), 952 states have internal predecessors, (1482), 202 states have call successors, (202), 52 states have call predecessors, (202), 54 states have return successors, (212), 196 states have call predecessors, (212), 197 states have call successors, (212) [2022-07-21 04:32:50,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1177 states to 1177 states and 1896 transitions. [2022-07-21 04:32:50,528 INFO L78 Accepts]: Start accepts. Automaton has 1177 states and 1896 transitions. Word has length 122 [2022-07-21 04:32:50,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:50,528 INFO L495 AbstractCegarLoop]: Abstraction has 1177 states and 1896 transitions. [2022-07-21 04:32:50,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 6 states have internal predecessors, (88), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:50,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1177 states and 1896 transitions. [2022-07-21 04:32:50,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-21 04:32:50,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:50,531 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] [2022-07-21 04:32:50,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 04:32:50,531 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:50,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:50,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1726082210, now seen corresponding path program 1 times [2022-07-21 04:32:50,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:50,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490254397] [2022-07-21 04:32:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:50,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 04:32:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 04:32:50,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:50,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 04:32:50,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-21 04:32:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-21 04:32:50,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-21 04:32:50,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:50,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490254397] [2022-07-21 04:32:50,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490254397] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:50,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:50,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 04:32:50,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727204713] [2022-07-21 04:32:50,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:50,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 04:32:50,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:50,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 04:32:50,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 04:32:50,888 INFO L87 Difference]: Start difference. First operand 1177 states and 1896 transitions. Second operand has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:54,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:54,557 INFO L93 Difference]: Finished difference Result 2663 states and 4455 transitions. [2022-07-21 04:32:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 04:32:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 124 [2022-07-21 04:32:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:54,566 INFO L225 Difference]: With dead ends: 2663 [2022-07-21 04:32:54,567 INFO L226 Difference]: Without dead ends: 1564 [2022-07-21 04:32:54,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-07-21 04:32:54,572 INFO L413 NwaCegarLoop]: 944 mSDtfsCounter, 2303 mSDsluCounter, 1644 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2313 SdHoareTripleChecker+Valid, 2588 SdHoareTripleChecker+Invalid, 4207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:54,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2313 Valid, 2588 Invalid, 4207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-21 04:32:54,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1564 states. [2022-07-21 04:32:54,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1564 to 1191. [2022-07-21 04:32:54,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1191 states, 932 states have (on average 1.6030042918454936) internal successors, (1494), 964 states have internal predecessors, (1494), 202 states have call successors, (202), 54 states have call predecessors, (202), 56 states have return successors, (214), 196 states have call predecessors, (214), 197 states have call successors, (214) [2022-07-21 04:32:54,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1191 states to 1191 states and 1910 transitions. [2022-07-21 04:32:54,782 INFO L78 Accepts]: Start accepts. Automaton has 1191 states and 1910 transitions. Word has length 124 [2022-07-21 04:32:54,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:54,782 INFO L495 AbstractCegarLoop]: Abstraction has 1191 states and 1910 transitions. [2022-07-21 04:32:54,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.0) internal successors, (90), 6 states have internal predecessors, (90), 4 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:32:54,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1191 states and 1910 transitions. [2022-07-21 04:32:54,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-07-21 04:32:54,784 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:54,785 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] [2022-07-21 04:32:54,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 04:32:54,785 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:54,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:54,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1177199684, now seen corresponding path program 1 times [2022-07-21 04:32:54,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:54,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309953178] [2022-07-21 04:32:54,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:54,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:54,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:54,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:32:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:32:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:55,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:55,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:32:55,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:32:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,125 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-21 04:32:55,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:55,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309953178] [2022-07-21 04:32:55,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309953178] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:32:55,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173199677] [2022-07-21 04:32:55,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:55,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:32:55,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:32:55,154 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) [2022-07-21 04:32:55,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 04:32:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:55,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 1448 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:32:55,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:32:55,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:32:55,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:32:55,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173199677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:55,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:32:55,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [14] total 17 [2022-07-21 04:32:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544372051] [2022-07-21 04:32:55,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:55,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:32:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:32:55,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:32:55,556 INFO L87 Difference]: Start difference. First operand 1191 states and 1910 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 04:32:55,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:32:55,989 INFO L93 Difference]: Finished difference Result 1272 states and 2038 transitions. [2022-07-21 04:32:55,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 04:32:55,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 126 [2022-07-21 04:32:55,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:32:56,003 INFO L225 Difference]: With dead ends: 1272 [2022-07-21 04:32:56,003 INFO L226 Difference]: Without dead ends: 1257 [2022-07-21 04:32:56,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-07-21 04:32:56,004 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 899 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 1646 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:32:56,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 1646 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 04:32:56,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-07-21 04:32:56,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1197. [2022-07-21 04:32:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 938 states have (on average 1.5991471215351811) internal successors, (1500), 970 states have internal predecessors, (1500), 202 states have call successors, (202), 54 states have call predecessors, (202), 56 states have return successors, (214), 196 states have call predecessors, (214), 197 states have call successors, (214) [2022-07-21 04:32:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1916 transitions. [2022-07-21 04:32:56,225 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1916 transitions. Word has length 126 [2022-07-21 04:32:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:32:56,225 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1916 transitions. [2022-07-21 04:32:56,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 04:32:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1916 transitions. [2022-07-21 04:32:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-07-21 04:32:56,228 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:32:56,228 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] [2022-07-21 04:32:56,247 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-21 04:32:56,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-21 04:32:56,444 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:32:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:32:56,444 INFO L85 PathProgramCache]: Analyzing trace with hash -153685569, now seen corresponding path program 1 times [2022-07-21 04:32:56,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:32:56,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36653975] [2022-07-21 04:32:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:32:56,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:32:56,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:32:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:32:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:32:56,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:32:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:32:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:32:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:32:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:32:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:32:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:32:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:32:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-21 04:32:56,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:32:56,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36653975] [2022-07-21 04:32:56,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36653975] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:32:56,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:32:56,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 04:32:56,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776192222] [2022-07-21 04:32:56,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:32:56,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 04:32:56,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:32:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 04:32:56,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-07-21 04:32:56,766 INFO L87 Difference]: Start difference. First operand 1197 states and 1916 transitions. Second operand has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:33:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:06,283 INFO L93 Difference]: Finished difference Result 3382 states and 5660 transitions. [2022-07-21 04:33:06,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-07-21 04:33:06,283 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) Word has length 132 [2022-07-21 04:33:06,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:06,327 INFO L225 Difference]: With dead ends: 3382 [2022-07-21 04:33:06,328 INFO L226 Difference]: Without dead ends: 3367 [2022-07-21 04:33:06,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 609 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=455, Invalid=1707, Unknown=0, NotChecked=0, Total=2162 [2022-07-21 04:33:06,330 INFO L413 NwaCegarLoop]: 967 mSDtfsCounter, 5369 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 5829 mSolverCounterSat, 2187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5408 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 8016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2187 IncrementalHoareTripleChecker+Valid, 5829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:33:06,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5408 Valid, 3228 Invalid, 8016 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2187 Valid, 5829 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-21 04:33:06,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-07-21 04:33:06,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 1197. [2022-07-21 04:33:06,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1197 states, 938 states have (on average 1.5970149253731343) internal successors, (1498), 970 states have internal predecessors, (1498), 202 states have call successors, (202), 54 states have call predecessors, (202), 56 states have return successors, (214), 196 states have call predecessors, (214), 197 states have call successors, (214) [2022-07-21 04:33:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1914 transitions. [2022-07-21 04:33:06,640 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1914 transitions. Word has length 132 [2022-07-21 04:33:06,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:06,640 INFO L495 AbstractCegarLoop]: Abstraction has 1197 states and 1914 transitions. [2022-07-21 04:33:06,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.909090909090909) internal successors, (87), 7 states have internal predecessors, (87), 4 states have call successors, (15), 5 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-21 04:33:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1914 transitions. [2022-07-21 04:33:06,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-21 04:33:06,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:06,643 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] [2022-07-21 04:33:06,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 04:33:06,643 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:06,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:06,643 INFO L85 PathProgramCache]: Analyzing trace with hash 865372949, now seen corresponding path program 1 times [2022-07-21 04:33:06,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:06,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211412989] [2022-07-21 04:33:06,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:06,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:06,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:06,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:33:06,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:06,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:33:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:33:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-21 04:33:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-21 04:33:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:06,937 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-21 04:33:06,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:06,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211412989] [2022-07-21 04:33:06,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211412989] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:06,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133846383] [2022-07-21 04:33:06,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:06,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:06,939 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) [2022-07-21 04:33:06,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 04:33:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:07,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-21 04:33:07,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-21 04:33:07,394 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:33:07,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2133846383] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:33:07,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:33:07,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 20 [2022-07-21 04:33:07,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720608263] [2022-07-21 04:33:07,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:33:07,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:33:07,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:07,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:33:07,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=328, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:33:07,395 INFO L87 Difference]: Start difference. First operand 1197 states and 1914 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-21 04:33:09,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:09,246 INFO L93 Difference]: Finished difference Result 2452 states and 3971 transitions. [2022-07-21 04:33:09,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 04:33:09,247 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 143 [2022-07-21 04:33:09,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:09,252 INFO L225 Difference]: With dead ends: 2452 [2022-07-21 04:33:09,252 INFO L226 Difference]: Without dead ends: 1333 [2022-07-21 04:33:09,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2022-07-21 04:33:09,255 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 3368 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 3814 mSolverCounterSat, 856 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3472 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 3814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 04:33:09,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3472 Valid, 2849 Invalid, 4670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 3814 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 04:33:09,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-07-21 04:33:09,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1221. [2022-07-21 04:33:09,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1221 states, 954 states have (on average 1.5880503144654088) internal successors, (1515), 990 states have internal predecessors, (1515), 206 states have call successors, (206), 56 states have call predecessors, (206), 60 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2022-07-21 04:33:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1221 states to 1221 states and 1944 transitions. [2022-07-21 04:33:09,556 INFO L78 Accepts]: Start accepts. Automaton has 1221 states and 1944 transitions. Word has length 143 [2022-07-21 04:33:09,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:09,557 INFO L495 AbstractCegarLoop]: Abstraction has 1221 states and 1944 transitions. [2022-07-21 04:33:09,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2022-07-21 04:33:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 1221 states and 1944 transitions. [2022-07-21 04:33:09,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-07-21 04:33:09,559 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:09,559 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] [2022-07-21 04:33:09,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 04:33:09,778 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 [2022-07-21 04:33:09,779 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:09,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash 914578033, now seen corresponding path program 1 times [2022-07-21 04:33:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:09,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393573907] [2022-07-21 04:33:09,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:09,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:09,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:09,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:09,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:09,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:10,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:33:10,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:10,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:10,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:33:10,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:33:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:33:10,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:33:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-21 04:33:10,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:10,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393573907] [2022-07-21 04:33:10,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393573907] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:10,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679857796] [2022-07-21 04:33:10,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:10,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:10,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:10,288 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) [2022-07-21 04:33:10,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 04:33:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:10,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 1521 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-21 04:33:10,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-21 04:33:10,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:33:10,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679857796] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:33:10,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:33:10,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 25 [2022-07-21 04:33:10,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866856811] [2022-07-21 04:33:10,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:33:10,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 04:33:10,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:10,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 04:33:10,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2022-07-21 04:33:10,576 INFO L87 Difference]: Start difference. First operand 1221 states and 1944 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 04:33:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:10,863 INFO L93 Difference]: Finished difference Result 1320 states and 2089 transitions. [2022-07-21 04:33:10,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 04:33:10,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 148 [2022-07-21 04:33:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:10,869 INFO L225 Difference]: With dead ends: 1320 [2022-07-21 04:33:10,869 INFO L226 Difference]: Without dead ends: 1305 [2022-07-21 04:33:10,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 174 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-07-21 04:33:10,871 INFO L413 NwaCegarLoop]: 968 mSDtfsCounter, 67 mSDsluCounter, 2836 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 3804 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 [2022-07-21 04:33:10,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 3804 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:33:10,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2022-07-21 04:33:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1227. [2022-07-21 04:33:11,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1227 states, 960 states have (on average 1.584375) internal successors, (1521), 996 states have internal predecessors, (1521), 206 states have call successors, (206), 56 states have call predecessors, (206), 60 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2022-07-21 04:33:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1950 transitions. [2022-07-21 04:33:11,133 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1950 transitions. Word has length 148 [2022-07-21 04:33:11,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:11,134 INFO L495 AbstractCegarLoop]: Abstraction has 1227 states and 1950 transitions. [2022-07-21 04:33:11,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 5 states have internal predecessors, (97), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2022-07-21 04:33:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1950 transitions. [2022-07-21 04:33:11,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-21 04:33:11,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:11,137 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 04:33:11,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 04:33:11,356 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 [2022-07-21 04:33:11,356 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:11,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:11,356 INFO L85 PathProgramCache]: Analyzing trace with hash 872049192, now seen corresponding path program 1 times [2022-07-21 04:33:11,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:11,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710030030] [2022-07-21 04:33:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:11,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:33:11,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:33:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:11,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:33:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:33:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:33:11,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:33:11,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:11,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:33:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:11,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:33:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:33:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-21 04:33:11,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:11,828 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-21 04:33:11,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:11,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710030030] [2022-07-21 04:33:11,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710030030] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:11,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053867485] [2022-07-21 04:33:11,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:11,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:11,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:11,844 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) [2022-07-21 04:33:11,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 04:33:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:12,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 2007 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 04:33:12,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2022-07-21 04:33:12,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:33:12,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053867485] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:33:12,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:33:12,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [19] total 20 [2022-07-21 04:33:12,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536758029] [2022-07-21 04:33:12,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:33:12,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 04:33:12,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:12,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 04:33:12,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:33:12,160 INFO L87 Difference]: Start difference. First operand 1227 states and 1950 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-21 04:33:12,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:12,648 INFO L93 Difference]: Finished difference Result 3500 states and 5665 transitions. [2022-07-21 04:33:12,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 04:33:12,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 243 [2022-07-21 04:33:12,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:12,656 INFO L225 Difference]: With dead ends: 3500 [2022-07-21 04:33:12,656 INFO L226 Difference]: Without dead ends: 2351 [2022-07-21 04:33:12,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380 [2022-07-21 04:33:12,659 INFO L413 NwaCegarLoop]: 1109 mSDtfsCounter, 905 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:33:12,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1951 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:33:12,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-07-21 04:33:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 2349. [2022-07-21 04:33:13,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2349 states, 1833 states have (on average 1.6012002182214948) internal successors, (2935), 1901 states have internal predecessors, (2935), 398 states have call successors, (398), 107 states have call predecessors, (398), 117 states have return successors, (457), 392 states have call predecessors, (457), 393 states have call successors, (457) [2022-07-21 04:33:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2349 states to 2349 states and 3790 transitions. [2022-07-21 04:33:13,131 INFO L78 Accepts]: Start accepts. Automaton has 2349 states and 3790 transitions. Word has length 243 [2022-07-21 04:33:13,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:13,132 INFO L495 AbstractCegarLoop]: Abstraction has 2349 states and 3790 transitions. [2022-07-21 04:33:13,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-07-21 04:33:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 2349 states and 3790 transitions. [2022-07-21 04:33:13,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-07-21 04:33:13,137 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:13,138 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 04:33:13,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 04:33:13,351 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 [2022-07-21 04:33:13,352 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:13,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:13,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1534669380, now seen corresponding path program 1 times [2022-07-21 04:33:13,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:13,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110052618] [2022-07-21 04:33:13,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:13,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:13,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:33:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:33:13,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:33:13,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:33:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:33:13,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:33:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:13,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 04:33:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-21 04:33:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-21 04:33:13,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:13,814 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-07-21 04:33:13,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:13,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110052618] [2022-07-21 04:33:13,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110052618] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:13,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904573177] [2022-07-21 04:33:13,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:13,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:13,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:13,830 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) [2022-07-21 04:33:13,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 04:33:14,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:14,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 1994 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 04:33:14,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 33 proven. 88 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 04:33:14,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:33:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2022-07-21 04:33:14,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904573177] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:33:14,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:33:14,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 5, 5] total 23 [2022-07-21 04:33:14,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987834001] [2022-07-21 04:33:14,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:33:14,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 04:33:14,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:14,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 04:33:14,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-07-21 04:33:14,615 INFO L87 Difference]: Start difference. First operand 2349 states and 3790 transitions. Second operand has 23 states, 23 states have (on average 10.521739130434783) internal successors, (242), 17 states have internal predecessors, (242), 9 states have call successors, (52), 8 states have call predecessors, (52), 10 states have return successors, (52), 13 states have call predecessors, (52), 9 states have call successors, (52) [2022-07-21 04:33:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:44,922 INFO L93 Difference]: Finished difference Result 18090 states and 32224 transitions. [2022-07-21 04:33:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-07-21 04:33:44,923 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.521739130434783) internal successors, (242), 17 states have internal predecessors, (242), 9 states have call successors, (52), 8 states have call predecessors, (52), 10 states have return successors, (52), 13 states have call predecessors, (52), 9 states have call successors, (52) Word has length 241 [2022-07-21 04:33:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:45,015 INFO L225 Difference]: With dead ends: 18090 [2022-07-21 04:33:45,015 INFO L226 Difference]: Without dead ends: 15819 [2022-07-21 04:33:45,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 553 SyntacticMatches, 2 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4925 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=1864, Invalid=12416, Unknown=0, NotChecked=0, Total=14280 [2022-07-21 04:33:45,052 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 13098 mSDsluCounter, 19800 mSDsCounter, 0 mSdLazyCounter, 38442 mSolverCounterSat, 7192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13104 SdHoareTripleChecker+Valid, 22492 SdHoareTripleChecker+Invalid, 45634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 7192 IncrementalHoareTripleChecker+Valid, 38442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:33:45,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13104 Valid, 22492 Invalid, 45634 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [7192 Valid, 38442 Invalid, 0 Unknown, 0 Unchecked, 18.1s Time] [2022-07-21 04:33:45,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15819 states. [2022-07-21 04:33:47,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15819 to 8767. [2022-07-21 04:33:47,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8767 states, 6739 states have (on average 1.5638818815848048) internal successors, (10539), 6955 states have internal predecessors, (10539), 1562 states have call successors, (1562), 350 states have call predecessors, (1562), 465 states have return successors, (2116), 1577 states have call predecessors, (2116), 1557 states have call successors, (2116) [2022-07-21 04:33:47,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8767 states to 8767 states and 14217 transitions. [2022-07-21 04:33:47,880 INFO L78 Accepts]: Start accepts. Automaton has 8767 states and 14217 transitions. Word has length 241 [2022-07-21 04:33:47,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:47,881 INFO L495 AbstractCegarLoop]: Abstraction has 8767 states and 14217 transitions. [2022-07-21 04:33:47,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.521739130434783) internal successors, (242), 17 states have internal predecessors, (242), 9 states have call successors, (52), 8 states have call predecessors, (52), 10 states have return successors, (52), 13 states have call predecessors, (52), 9 states have call successors, (52) [2022-07-21 04:33:47,882 INFO L276 IsEmpty]: Start isEmpty. Operand 8767 states and 14217 transitions. [2022-07-21 04:33:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-07-21 04:33:47,903 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:47,903 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 04:33:47,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 04:33:48,119 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 [2022-07-21 04:33:48,119 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:48,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:48,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1918361902, now seen corresponding path program 1 times [2022-07-21 04:33:48,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:48,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324413897] [2022-07-21 04:33:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:48,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-21 04:33:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-07-21 04:33:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:48,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-21 04:33:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:33:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-21 04:33:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:33:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:33:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:33:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:33:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:33:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,573 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 59 proven. 13 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-07-21 04:33:48,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:48,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324413897] [2022-07-21 04:33:48,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324413897] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:48,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92803008] [2022-07-21 04:33:48,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:48,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:48,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:48,581 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) [2022-07-21 04:33:48,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 04:33:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:48,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 1993 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-21 04:33:48,860 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:48,965 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2022-07-21 04:33:48,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 04:33:48,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92803008] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:33:48,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 04:33:48,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2022-07-21 04:33:48,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307558799] [2022-07-21 04:33:48,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:33:48,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 04:33:48,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:48,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 04:33:48,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-07-21 04:33:48,967 INFO L87 Difference]: Start difference. First operand 8767 states and 14217 transitions. Second operand has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 04:33:50,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:33:50,143 INFO L93 Difference]: Finished difference Result 12766 states and 20649 transitions. [2022-07-21 04:33:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 04:33:50,144 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 244 [2022-07-21 04:33:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:33:50,157 INFO L225 Difference]: With dead ends: 12766 [2022-07-21 04:33:50,158 INFO L226 Difference]: Without dead ends: 4057 [2022-07-21 04:33:50,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 302 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2022-07-21 04:33:50,176 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 60 mSDsluCounter, 5333 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 6231 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 04:33:50,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 6231 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 04:33:50,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2022-07-21 04:33:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4057. [2022-07-21 04:33:51,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4057 states, 3157 states have (on average 1.5701615457713018) internal successors, (4957), 3255 states have internal predecessors, (4957), 680 states have call successors, (680), 177 states have call predecessors, (680), 219 states have return successors, (858), 672 states have call predecessors, (858), 675 states have call successors, (858) [2022-07-21 04:33:51,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4057 states to 4057 states and 6495 transitions. [2022-07-21 04:33:51,226 INFO L78 Accepts]: Start accepts. Automaton has 4057 states and 6495 transitions. Word has length 244 [2022-07-21 04:33:51,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:33:51,227 INFO L495 AbstractCegarLoop]: Abstraction has 4057 states and 6495 transitions. [2022-07-21 04:33:51,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-21 04:33:51,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4057 states and 6495 transitions. [2022-07-21 04:33:51,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-07-21 04:33:51,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:33:51,232 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 04:33:51,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 04:33:51,450 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 [2022-07-21 04:33:51,451 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:33:51,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:33:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash -314920638, now seen corresponding path program 1 times [2022-07-21 04:33:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:33:51,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070817271] [2022-07-21 04:33:51,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:51,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:33:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:33:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:33:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:33:51,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:33:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:33:51,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:51,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:33:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:51,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:33:51,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-21 04:33:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 04:33:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-21 04:33:51,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:33:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:33:51,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:33:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:33:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-21 04:33:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:33:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-21 04:33:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-07-21 04:33:51,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:33:51,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070817271] [2022-07-21 04:33:51,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070817271] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 04:33:51,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009872648] [2022-07-21 04:33:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:33:51,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 04:33:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 04:33:51,876 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) [2022-07-21 04:33:51,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 04:33:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:33:52,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 2034 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-21 04:33:52,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 04:33:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 14 proven. 34 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-07-21 04:33:52,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 04:33:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 17 proven. 36 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-07-21 04:33:53,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009872648] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 04:33:53,261 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 04:33:53,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13, 14] total 35 [2022-07-21 04:33:53,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441060087] [2022-07-21 04:33:53,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 04:33:53,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-21 04:33:53,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:33:53,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-21 04:33:53,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 04:33:53,263 INFO L87 Difference]: Start difference. First operand 4057 states and 6495 transitions. Second operand has 35 states, 33 states have (on average 8.909090909090908) internal successors, (294), 27 states have internal predecessors, (294), 14 states have call successors, (60), 9 states have call predecessors, (60), 17 states have return successors, (64), 20 states have call predecessors, (64), 14 states have call successors, (64) [2022-07-21 04:34:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:34:34,317 INFO L93 Difference]: Finished difference Result 25328 states and 44014 transitions. [2022-07-21 04:34:34,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-07-21 04:34:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 8.909090909090908) internal successors, (294), 27 states have internal predecessors, (294), 14 states have call successors, (60), 9 states have call predecessors, (60), 17 states have return successors, (64), 20 states have call predecessors, (64), 14 states have call successors, (64) Word has length 255 [2022-07-21 04:34:34,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:34:34,444 INFO L225 Difference]: With dead ends: 25328 [2022-07-21 04:34:34,444 INFO L226 Difference]: Without dead ends: 19471 [2022-07-21 04:34:34,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 619 SyntacticMatches, 2 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9627 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=3858, Invalid=23864, Unknown=0, NotChecked=0, Total=27722 [2022-07-21 04:34:34,514 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 22107 mSDsluCounter, 11838 mSDsCounter, 0 mSdLazyCounter, 35092 mSolverCounterSat, 11189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22107 SdHoareTripleChecker+Valid, 13333 SdHoareTripleChecker+Invalid, 46281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 11189 IncrementalHoareTripleChecker+Valid, 35092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-07-21 04:34:34,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22107 Valid, 13333 Invalid, 46281 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [11189 Valid, 35092 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2022-07-21 04:34:34,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19471 states. [2022-07-21 04:34:39,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19471 to 16098. [2022-07-21 04:34:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16098 states, 12357 states have (on average 1.5116128510156186) internal successors, (18679), 12770 states have internal predecessors, (18679), 2735 states have call successors, (2735), 835 states have call predecessors, (2735), 1005 states have return successors, (4184), 2684 states have call predecessors, (4184), 2730 states have call successors, (4184) [2022-07-21 04:34:39,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16098 states to 16098 states and 25598 transitions. [2022-07-21 04:34:39,490 INFO L78 Accepts]: Start accepts. Automaton has 16098 states and 25598 transitions. Word has length 255 [2022-07-21 04:34:39,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:34:39,490 INFO L495 AbstractCegarLoop]: Abstraction has 16098 states and 25598 transitions. [2022-07-21 04:34:39,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 8.909090909090908) internal successors, (294), 27 states have internal predecessors, (294), 14 states have call successors, (60), 9 states have call predecessors, (60), 17 states have return successors, (64), 20 states have call predecessors, (64), 14 states have call successors, (64) [2022-07-21 04:34:39,491 INFO L276 IsEmpty]: Start isEmpty. Operand 16098 states and 25598 transitions. [2022-07-21 04:34:39,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-07-21 04:34:39,499 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:34:39,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:34:39,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-21 04:34:39,718 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 [2022-07-21 04:34:39,718 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:34:39,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:34:39,719 INFO L85 PathProgramCache]: Analyzing trace with hash -950382441, now seen corresponding path program 1 times [2022-07-21 04:34:39,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:34:39,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757512246] [2022-07-21 04:34:39,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:34:39,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:34:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:34:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:39,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:34:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:34:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:40,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:34:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:34:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:34:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:34:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:40,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:34:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 04:34:40,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-21 04:34:40,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:34:40,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-21 04:34:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 04:34:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 04:34:40,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-21 04:34:40,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-07-21 04:34:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-07-21 04:34:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 04:34:40,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:34:40,130 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-07-21 04:34:40,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:34:40,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757512246] [2022-07-21 04:34:40,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757512246] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:34:40,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:34:40,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:34:40,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619704366] [2022-07-21 04:34:40,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:34:40,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:34:40,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:34:40,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:34:40,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:34:40,132 INFO L87 Difference]: Start difference. First operand 16098 states and 25598 transitions. Second operand has 12 states, 12 states have (on average 10.75) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 04:35:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 04:35:04,461 INFO L93 Difference]: Finished difference Result 57174 states and 101018 transitions. [2022-07-21 04:35:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-21 04:35:04,461 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) Word has length 209 [2022-07-21 04:35:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 04:35:04,684 INFO L225 Difference]: With dead ends: 57174 [2022-07-21 04:35:04,684 INFO L226 Difference]: Without dead ends: 41156 [2022-07-21 04:35:04,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=236, Invalid=954, Unknown=0, NotChecked=0, Total=1190 [2022-07-21 04:35:04,769 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 2626 mSDsluCounter, 4673 mSDsCounter, 0 mSdLazyCounter, 8470 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 5773 SdHoareTripleChecker+Invalid, 9440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 8470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-21 04:35:04,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 5773 Invalid, 9440 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [970 Valid, 8470 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-07-21 04:35:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41156 states. [2022-07-21 04:35:14,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41156 to 33175. [2022-07-21 04:35:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33175 states, 25409 states have (on average 1.5033649494273682) internal successors, (38199), 26216 states have internal predecessors, (38199), 5604 states have call successors, (5604), 1599 states have call predecessors, (5604), 2161 states have return successors, (11588), 5743 states have call predecessors, (11588), 5599 states have call successors, (11588) [2022-07-21 04:35:15,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33175 states to 33175 states and 55391 transitions. [2022-07-21 04:35:15,166 INFO L78 Accepts]: Start accepts. Automaton has 33175 states and 55391 transitions. Word has length 209 [2022-07-21 04:35:15,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 04:35:15,167 INFO L495 AbstractCegarLoop]: Abstraction has 33175 states and 55391 transitions. [2022-07-21 04:35:15,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.75) internal successors, (129), 7 states have internal predecessors, (129), 3 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22) [2022-07-21 04:35:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 33175 states and 55391 transitions. [2022-07-21 04:35:15,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-07-21 04:35:15,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 04:35:15,173 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 04:35:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-21 04:35:15,173 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 04:35:15,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 04:35:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1440791909, now seen corresponding path program 1 times [2022-07-21 04:35:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 04:35:15,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319342450] [2022-07-21 04:35:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 04:35:15,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 04:35:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-21 04:35:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 04:35:15,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-21 04:35:15,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-21 04:35:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:35:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 04:35:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-21 04:35:15,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 04:35:15,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 04:35:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-21 04:35:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 04:35:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-21 04:35:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 04:35:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 04:35:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 04:35:15,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-21 04:35:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 04:35:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 04:35:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 04:35:15,520 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2022-07-21 04:35:15,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 04:35:15,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319342450] [2022-07-21 04:35:15,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319342450] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 04:35:15,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 04:35:15,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 04:35:15,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524258010] [2022-07-21 04:35:15,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 04:35:15,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 04:35:15,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 04:35:15,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 04:35:15,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-07-21 04:35:15,522 INFO L87 Difference]: Start difference. First operand 33175 states and 55391 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 7 states have internal predecessors, (131), 3 states have call successors, (23), 5 states have call predecessors, (23), 4 states have return successors, (22), 5 states have call predecessors, (22), 3 states have call successors, (22)