./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec3_product03.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 ec740d4c0b0b941516a7691cfe22f258e1a0e4fdd205bb4a0c04151c297a8c86 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 05:47:52,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 05:47:52,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 05:47:52,517 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 05:47:52,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 05:47:52,519 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 05:47:52,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 05:47:52,522 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 05:47:52,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 05:47:52,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 05:47:52,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 05:47:52,528 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 05:47:52,528 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 05:47:52,532 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 05:47:52,533 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 05:47:52,535 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 05:47:52,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 05:47:52,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 05:47:52,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 05:47:52,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 05:47:52,545 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 05:47:52,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 05:47:52,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 05:47:52,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 05:47:52,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 05:47:52,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 05:47:52,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 05:47:52,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 05:47:52,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 05:47:52,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 05:47:52,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 05:47:52,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 05:47:52,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 05:47:52,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 05:47:52,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 05:47:52,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 05:47:52,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 05:47:52,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 05:47:52,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 05:47:52,566 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 05:47:52,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 05:47:52,568 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 05:47:52,569 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 05:47:52,603 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 05:47:52,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 05:47:52,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 05:47:52,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 05:47:52,605 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 05:47:52,605 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 05:47:52,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 05:47:52,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 05:47:52,606 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 05:47:52,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 05:47:52,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 05:47:52,607 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 05:47:52,607 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 05:47:52,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 05:47:52,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 05:47:52,608 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 05:47:52,608 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 05:47:52,608 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 05:47:52,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 05:47:52,609 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 05:47:52,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 05:47:52,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 05:47:52,609 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 05:47:52,609 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 05:47:52,609 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:47:52,610 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 05:47:52,610 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 05:47:52,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 05:47:52,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 05:47:52,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 05:47:52,611 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 05:47:52,611 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 05:47:52,611 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 05:47:52,612 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec740d4c0b0b941516a7691cfe22f258e1a0e4fdd205bb4a0c04151c297a8c86 [2022-07-12 05:47:52,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 05:47:52,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 05:47:52,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 05:47:52,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 05:47:52,905 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 05:47:52,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2022-07-12 05:47:52,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1090604b2/8d018e528d044fb3816befd93455fbe2/FLAGe8c99fb34 [2022-07-12 05:47:53,487 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 05:47:53,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2022-07-12 05:47:53,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1090604b2/8d018e528d044fb3816befd93455fbe2/FLAGe8c99fb34 [2022-07-12 05:47:53,988 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1090604b2/8d018e528d044fb3816befd93455fbe2 [2022-07-12 05:47:53,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 05:47:53,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 05:47:53,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 05:47:53,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 05:47:53,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 05:47:53,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:47:53" (1/1) ... [2022-07-12 05:47:53,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc179f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:53, skipping insertion in model container [2022-07-12 05:47:53,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 05:47:53" (1/1) ... [2022-07-12 05:47:54,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 05:47:54,072 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 05:47:54,388 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_spec3_product03.cil.c[33356,33369] [2022-07-12 05:47:54,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:47:54,582 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 05:47:54,632 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c[33356,33369] [2022-07-12 05:47:54,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 05:47:54,695 INFO L208 MainTranslator]: Completed translation [2022-07-12 05:47:54,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54 WrapperNode [2022-07-12 05:47:54,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 05:47:54,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 05:47:54,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 05:47:54,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 05:47:54,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,806 INFO L137 Inliner]: procedures = 90, calls = 342, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 1043 [2022-07-12 05:47:54,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 05:47:54,815 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 05:47:54,815 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 05:47:54,815 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 05:47:54,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,892 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 05:47:54,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 05:47:54,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 05:47:54,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 05:47:54,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (1/1) ... [2022-07-12 05:47:54,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 05:47:54,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:47:54,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 05:47:54,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 05:47:54,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 05:47:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2022-07-12 05:47:54,980 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2022-07-12 05:47:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2022-07-12 05:47:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2022-07-12 05:47:54,981 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2022-07-12 05:47:54,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2022-07-12 05:47:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2022-07-12 05:47:54,984 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2022-07-12 05:47:54,984 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2022-07-12 05:47:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2022-07-12 05:47:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2022-07-12 05:47:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2022-07-12 05:47:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 05:47:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 05:47:54,985 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 05:47:54,985 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 05:47:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2022-07-12 05:47:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2022-07-12 05:47:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2022-07-12 05:47:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2022-07-12 05:47:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2022-07-12 05:47:54,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2022-07-12 05:47:54,986 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2022-07-12 05:47:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2022-07-12 05:47:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2022-07-12 05:47:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2022-07-12 05:47:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2022-07-12 05:47:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2022-07-12 05:47:54,987 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2022-07-12 05:47:54,987 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2022-07-12 05:47:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2022-07-12 05:47:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2022-07-12 05:47:54,988 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2022-07-12 05:47:54,988 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2022-07-12 05:47:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2022-07-12 05:47:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2022-07-12 05:47:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2022-07-12 05:47:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2022-07-12 05:47:54,989 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2022-07-12 05:47:54,989 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2022-07-12 05:47:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-07-12 05:47:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2022-07-12 05:47:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 05:47:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2022-07-12 05:47:54,990 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2022-07-12 05:47:54,990 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2022-07-12 05:47:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2022-07-12 05:47:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2022-07-12 05:47:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2022-07-12 05:47:54,991 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2022-07-12 05:47:54,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2022-07-12 05:47:54,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 05:47:54,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 05:47:54,993 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2022-07-12 05:47:54,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2022-07-12 05:47:55,137 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 05:47:55,139 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 05:47:56,134 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 05:47:56,147 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 05:47:56,150 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-12 05:47:56,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:47:56 BoogieIcfgContainer [2022-07-12 05:47:56,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 05:47:56,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 05:47:56,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 05:47:56,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 05:47:56,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 05:47:53" (1/3) ... [2022-07-12 05:47:56,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51382aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:47:56, skipping insertion in model container [2022-07-12 05:47:56,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 05:47:54" (2/3) ... [2022-07-12 05:47:56,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51382aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 05:47:56, skipping insertion in model container [2022-07-12 05:47:56,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 05:47:56" (3/3) ... [2022-07-12 05:47:56,161 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.c [2022-07-12 05:47:56,171 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 05:47:56,171 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 05:47:56,239 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 05:47:56,244 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@3ff9917a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@46681a31 [2022-07-12 05:47:56,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 05:47:56,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 574 states, 440 states have (on average 1.6727272727272726) internal successors, (736), 458 states have internal predecessors, (736), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2022-07-12 05:47:56,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-12 05:47:56,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:47:56,284 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:47:56,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:47:56,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:47:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1064458506, now seen corresponding path program 1 times [2022-07-12 05:47:56,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:47:56,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875381191] [2022-07-12 05:47:56,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:47:56,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:47:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:47:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:47:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:56,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:47:57,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-07-12 05:47:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:47:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 05:47:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:47:57,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:47:57,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:47:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:47:57,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:47:57,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:47:57,082 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:47:57,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:47:57,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875381191] [2022-07-12 05:47:57,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875381191] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:47:57,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:47:57,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:47:57,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208600173] [2022-07-12 05:47:57,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:47:57,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:47:57,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:47:57,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:47:57,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:47:57,118 INFO L87 Difference]: Start difference. First operand has 574 states, 440 states have (on average 1.6727272727272726) internal successors, (736), 458 states have internal predecessors, (736), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:04,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:04,509 INFO L93 Difference]: Finished difference Result 1493 states and 2576 transitions. [2022-07-12 05:48:04,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:48:04,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2022-07-12 05:48:04,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:04,536 INFO L225 Difference]: With dead ends: 1493 [2022-07-12 05:48:04,536 INFO L226 Difference]: Without dead ends: 919 [2022-07-12 05:48:04,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:48:04,552 INFO L413 NwaCegarLoop]: 982 mSDtfsCounter, 1115 mSDsluCounter, 2964 mSDsCounter, 0 mSdLazyCounter, 5496 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1226 SdHoareTripleChecker+Valid, 3946 SdHoareTripleChecker+Invalid, 5831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 5496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:04,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1226 Valid, 3946 Invalid, 5831 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [335 Valid, 5496 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-07-12 05:48:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-12 05:48:04,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 577. [2022-07-12 05:48:04,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 443 states have (on average 1.6636568848758464) internal successors, (737), 461 states have internal predecessors, (737), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2022-07-12 05:48:04,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 950 transitions. [2022-07-12 05:48:04,760 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 950 transitions. Word has length 113 [2022-07-12 05:48:04,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:04,761 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 950 transitions. [2022-07-12 05:48:04,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:04,762 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 950 transitions. [2022-07-12 05:48:04,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 05:48:04,770 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:04,771 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:04,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 05:48:04,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:04,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:04,772 INFO L85 PathProgramCache]: Analyzing trace with hash -601072762, now seen corresponding path program 1 times [2022-07-12 05:48:04,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:04,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217311472] [2022-07-12 05:48:04,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:04,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-12 05:48:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:48:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:48:05,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:48:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:48:05,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:48:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:48:05,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:48:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:05,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:05,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217311472] [2022-07-12 05:48:05,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217311472] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:05,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:05,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:05,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444613306] [2022-07-12 05:48:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:05,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:05,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:05,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:05,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:05,188 INFO L87 Difference]: Start difference. First operand 577 states and 950 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, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:09,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:09,870 INFO L93 Difference]: Finished difference Result 1474 states and 2505 transitions. [2022-07-12 05:48:09,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 05:48:09,871 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, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-07-12 05:48:09,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:09,878 INFO L225 Difference]: With dead ends: 1474 [2022-07-12 05:48:09,879 INFO L226 Difference]: Without dead ends: 882 [2022-07-12 05:48:09,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:09,883 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 2079 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 752 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 3320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 752 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:09,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 2119 Invalid, 3320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [752 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-07-12 05:48:09,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-07-12 05:48:09,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 553. [2022-07-12 05:48:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 422 states have (on average 1.6540284360189574) internal successors, (698), 438 states have internal predecessors, (698), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:09,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 907 transitions. [2022-07-12 05:48:09,971 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 907 transitions. Word has length 114 [2022-07-12 05:48:09,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:09,973 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 907 transitions. [2022-07-12 05:48:09,973 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, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:09,973 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 907 transitions. [2022-07-12 05:48:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-12 05:48:09,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:09,982 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:09,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 05:48:09,982 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:09,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:09,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1244322680, now seen corresponding path program 1 times [2022-07-12 05:48:09,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:09,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139818245] [2022-07-12 05:48:09,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:09,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:10,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:10,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-12 05:48:10,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:48:10,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-12 05:48:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:10,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-12 05:48:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-12 05:48:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:48:10,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:48:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:10,316 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:10,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:10,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139818245] [2022-07-12 05:48:10,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139818245] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:10,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:10,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:10,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571608527] [2022-07-12 05:48:10,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:10,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:10,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:10,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:10,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:10,319 INFO L87 Difference]: Start difference. First operand 553 states and 907 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:14,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:14,901 INFO L93 Difference]: Finished difference Result 1419 states and 2411 transitions. [2022-07-12 05:48:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:48:14,902 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2022-07-12 05:48:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:14,907 INFO L225 Difference]: With dead ends: 1419 [2022-07-12 05:48:14,908 INFO L226 Difference]: Without dead ends: 882 [2022-07-12 05:48:14,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:48:14,918 INFO L413 NwaCegarLoop]: 888 mSDtfsCounter, 2065 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 751 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2175 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 3194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 751 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:14,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2175 Valid, 2075 Invalid, 3194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [751 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-07-12 05:48:14,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2022-07-12 05:48:14,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 553. [2022-07-12 05:48:14,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 422 states have (on average 1.6516587677725119) internal successors, (697), 438 states have internal predecessors, (697), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 906 transitions. [2022-07-12 05:48:14,997 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 906 transitions. Word has length 114 [2022-07-12 05:48:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:14,997 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 906 transitions. [2022-07-12 05:48:14,997 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 906 transitions. [2022-07-12 05:48:15,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-12 05:48:15,000 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:15,000 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:15,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 05:48:15,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:15,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:15,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1147547414, now seen corresponding path program 1 times [2022-07-12 05:48:15,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:15,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696982604] [2022-07-12 05:48:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:15,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:15,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-12 05:48:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:48:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-12 05:48:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-12 05:48:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:48:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-12 05:48:15,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:48:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:15,361 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:15,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:15,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696982604] [2022-07-12 05:48:15,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696982604] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:15,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:15,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:15,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479698119] [2022-07-12 05:48:15,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:15,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:15,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:15,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:15,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:15,364 INFO L87 Difference]: Start difference. First operand 553 states and 906 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:20,729 INFO L93 Difference]: Finished difference Result 1437 states and 2433 transitions. [2022-07-12 05:48:20,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:48:20,730 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2022-07-12 05:48:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:20,735 INFO L225 Difference]: With dead ends: 1437 [2022-07-12 05:48:20,735 INFO L226 Difference]: Without dead ends: 876 [2022-07-12 05:48:20,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:48:20,739 INFO L413 NwaCegarLoop]: 898 mSDtfsCounter, 2111 mSDsluCounter, 2540 mSDsCounter, 0 mSdLazyCounter, 5036 mSolverCounterSat, 755 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 3438 SdHoareTripleChecker+Invalid, 5791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 755 IncrementalHoareTripleChecker+Valid, 5036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:20,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 3438 Invalid, 5791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [755 Valid, 5036 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-07-12 05:48:20,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-07-12 05:48:20,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 547. [2022-07-12 05:48:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 416 states have (on average 1.6442307692307692) internal successors, (684), 432 states have internal predecessors, (684), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:20,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 893 transitions. [2022-07-12 05:48:20,821 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 893 transitions. Word has length 115 [2022-07-12 05:48:20,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:20,821 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 893 transitions. [2022-07-12 05:48:20,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:20,822 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 893 transitions. [2022-07-12 05:48:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-12 05:48:20,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:20,825 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:20,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 05:48:20,825 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:20,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:20,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1473709408, now seen corresponding path program 1 times [2022-07-12 05:48:20,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:20,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499917567] [2022-07-12 05:48:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-12 05:48:21,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:48:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:21,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-12 05:48:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:48:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-12 05:48:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-12 05:48:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:21,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:21,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499917567] [2022-07-12 05:48:21,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499917567] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:21,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:21,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:21,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677910743] [2022-07-12 05:48:21,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:21,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:21,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:21,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:21,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:21,187 INFO L87 Difference]: Start difference. First operand 547 states and 893 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:25,522 INFO L93 Difference]: Finished difference Result 1407 states and 2382 transitions. [2022-07-12 05:48:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:48:25,522 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2022-07-12 05:48:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:25,528 INFO L225 Difference]: With dead ends: 1407 [2022-07-12 05:48:25,528 INFO L226 Difference]: Without dead ends: 876 [2022-07-12 05:48:25,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:48:25,532 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 1013 mSDsluCounter, 1259 mSDsCounter, 0 mSdLazyCounter, 2650 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 2979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 2650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:25,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 2121 Invalid, 2979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 2650 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-12 05:48:25,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-07-12 05:48:25,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 547. [2022-07-12 05:48:25,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 416 states have (on average 1.6418269230769231) internal successors, (683), 432 states have internal predecessors, (683), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 892 transitions. [2022-07-12 05:48:25,609 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 892 transitions. Word has length 116 [2022-07-12 05:48:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:25,609 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 892 transitions. [2022-07-12 05:48:25,609 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:25,619 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 892 transitions. [2022-07-12 05:48:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-12 05:48:25,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:25,622 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:25,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 05:48:25,622 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:25,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:25,623 INFO L85 PathProgramCache]: Analyzing trace with hash -2082642509, now seen corresponding path program 1 times [2022-07-12 05:48:25,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:25,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613997642] [2022-07-12 05:48:25,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:25,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:25,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:25,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:25,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-12 05:48:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 05:48:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-12 05:48:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-07-12 05:48:25,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-12 05:48:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-12 05:48:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:48:25,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:25,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:25,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613997642] [2022-07-12 05:48:25,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613997642] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:25,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:25,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:25,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124326426] [2022-07-12 05:48:25,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:25,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:25,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:25,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:25,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:25,989 INFO L87 Difference]: Start difference. First operand 547 states and 892 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:31,001 INFO L93 Difference]: Finished difference Result 1425 states and 2402 transitions. [2022-07-12 05:48:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:48:31,002 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2022-07-12 05:48:31,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:31,007 INFO L225 Difference]: With dead ends: 1425 [2022-07-12 05:48:31,007 INFO L226 Difference]: Without dead ends: 870 [2022-07-12 05:48:31,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:48:31,011 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 1551 mSDsluCounter, 2706 mSDsCounter, 0 mSdLazyCounter, 5025 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 3615 SdHoareTripleChecker+Invalid, 5570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 5025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:31,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1661 Valid, 3615 Invalid, 5570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 5025 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 05:48:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-07-12 05:48:31,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 541. [2022-07-12 05:48:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6341463414634145) internal successors, (670), 426 states have internal predecessors, (670), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:31,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 879 transitions. [2022-07-12 05:48:31,090 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 879 transitions. Word has length 117 [2022-07-12 05:48:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:31,090 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 879 transitions. [2022-07-12 05:48:31,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 879 transitions. [2022-07-12 05:48:31,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-12 05:48:31,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:31,093 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:31,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 05:48:31,094 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:31,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:31,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1133086113, now seen corresponding path program 1 times [2022-07-12 05:48:31,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:31,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186872235] [2022-07-12 05:48:31,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:31,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-12 05:48:31,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-12 05:48:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-12 05:48:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-12 05:48:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-12 05:48:31,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-12 05:48:31,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:48:31,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:31,399 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:31,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:31,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186872235] [2022-07-12 05:48:31,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186872235] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:31,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:31,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:31,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709101904] [2022-07-12 05:48:31,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:31,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:31,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:31,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:31,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:31,401 INFO L87 Difference]: Start difference. First operand 541 states and 879 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:35,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:35,385 INFO L93 Difference]: Finished difference Result 1395 states and 2353 transitions. [2022-07-12 05:48:35,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:48:35,386 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2022-07-12 05:48:35,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:35,390 INFO L225 Difference]: With dead ends: 1395 [2022-07-12 05:48:35,391 INFO L226 Difference]: Without dead ends: 870 [2022-07-12 05:48:35,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:48:35,394 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 1497 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 2428 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1607 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 2973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:35,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1607 Valid, 2055 Invalid, 2973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 2428 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 05:48:35,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2022-07-12 05:48:35,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 541. [2022-07-12 05:48:35,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6317073170731706) internal successors, (669), 426 states have internal predecessors, (669), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 878 transitions. [2022-07-12 05:48:35,480 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 878 transitions. Word has length 118 [2022-07-12 05:48:35,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:35,480 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 878 transitions. [2022-07-12 05:48:35,480 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 878 transitions. [2022-07-12 05:48:35,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 05:48:35,483 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:35,483 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:35,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 05:48:35,483 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1508306665, now seen corresponding path program 1 times [2022-07-12 05:48:35,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:35,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019807499] [2022-07-12 05:48:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:35,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:35,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:48:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:48:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:48:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:48:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:48:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:48:35,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:35,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:35,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019807499] [2022-07-12 05:48:35,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019807499] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:35,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:35,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:35,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653423426] [2022-07-12 05:48:35,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:35,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:35,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:35,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:35,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:35,842 INFO L87 Difference]: Start difference. First operand 541 states and 878 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, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:40,878 INFO L93 Difference]: Finished difference Result 1413 states and 2371 transitions. [2022-07-12 05:48:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 05:48:40,879 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, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2022-07-12 05:48:40,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:40,883 INFO L225 Difference]: With dead ends: 1413 [2022-07-12 05:48:40,883 INFO L226 Difference]: Without dead ends: 864 [2022-07-12 05:48:40,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-07-12 05:48:40,886 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 2031 mSDsluCounter, 2613 mSDsCounter, 0 mSdLazyCounter, 4867 mSolverCounterSat, 760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2141 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 5627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 4867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:40,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2141 Valid, 3496 Invalid, 5627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 4867 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-07-12 05:48:40,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-07-12 05:48:40,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2022-07-12 05:48:40,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.6237623762376239) internal successors, (656), 420 states have internal predecessors, (656), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 865 transitions. [2022-07-12 05:48:40,976 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 865 transitions. Word has length 119 [2022-07-12 05:48:40,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:40,977 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 865 transitions. [2022-07-12 05:48:40,977 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, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:40,977 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 865 transitions. [2022-07-12 05:48:40,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-12 05:48:40,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:40,979 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:40,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 05:48:40,980 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:40,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:40,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1649594378, now seen corresponding path program 1 times [2022-07-12 05:48:40,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:40,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510889280] [2022-07-12 05:48:40,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:40,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-12 05:48:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-12 05:48:41,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-12 05:48:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-12 05:48:41,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-12 05:48:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-12 05:48:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-12 05:48:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:41,288 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:41,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:41,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510889280] [2022-07-12 05:48:41,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510889280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:41,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:41,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:41,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135121731] [2022-07-12 05:48:41,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:41,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:41,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:41,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:41,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:41,291 INFO L87 Difference]: Start difference. First operand 535 states and 865 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:45,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:45,127 INFO L93 Difference]: Finished difference Result 1383 states and 2324 transitions. [2022-07-12 05:48:45,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:48:45,128 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2022-07-12 05:48:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:45,132 INFO L225 Difference]: With dead ends: 1383 [2022-07-12 05:48:45,133 INFO L226 Difference]: Without dead ends: 864 [2022-07-12 05:48:45,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:48:45,136 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 1950 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 3111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 758 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:45,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 2036 Invalid, 3111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [758 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-12 05:48:45,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-07-12 05:48:45,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2022-07-12 05:48:45,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.6212871287128714) internal successors, (655), 420 states have internal predecessors, (655), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:45,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 864 transitions. [2022-07-12 05:48:45,229 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 864 transitions. Word has length 119 [2022-07-12 05:48:45,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:45,230 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 864 transitions. [2022-07-12 05:48:45,230 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:45,230 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 864 transitions. [2022-07-12 05:48:45,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 05:48:45,232 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:45,232 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:45,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 05:48:45,233 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:45,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:45,233 INFO L85 PathProgramCache]: Analyzing trace with hash 671667431, now seen corresponding path program 1 times [2022-07-12 05:48:45,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:45,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864934682] [2022-07-12 05:48:45,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:45,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:48:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:48:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:48:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:45,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:48:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:48:45,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:45,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:45,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:48:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:48:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:45,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:45,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864934682] [2022-07-12 05:48:45,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864934682] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:45,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:45,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:48:45,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035685550] [2022-07-12 05:48:45,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:45,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:48:45,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:45,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:48:45,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:48:45,550 INFO L87 Difference]: Start difference. First operand 535 states and 864 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:49,580 INFO L93 Difference]: Finished difference Result 1395 states and 2334 transitions. [2022-07-12 05:48:49,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 05:48:49,581 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2022-07-12 05:48:49,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:49,585 INFO L225 Difference]: With dead ends: 1395 [2022-07-12 05:48:49,585 INFO L226 Difference]: Without dead ends: 876 [2022-07-12 05:48:49,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:48:49,588 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 1450 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 2438 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 2987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 2438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:49,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 2106 Invalid, 2987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 2438 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-07-12 05:48:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2022-07-12 05:48:49,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 541. [2022-07-12 05:48:49,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6121951219512196) internal successors, (661), 426 states have internal predecessors, (661), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 870 transitions. [2022-07-12 05:48:49,674 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 870 transitions. Word has length 120 [2022-07-12 05:48:49,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:49,675 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 870 transitions. [2022-07-12 05:48:49,675 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, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2022-07-12 05:48:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 870 transitions. [2022-07-12 05:48:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-12 05:48:49,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:49,677 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:49,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 05:48:49,678 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:49,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1746817047, now seen corresponding path program 1 times [2022-07-12 05:48:49,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:49,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866458802] [2022-07-12 05:48:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:49,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-12 05:48:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-12 05:48:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-12 05:48:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-07-12 05:48:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-12 05:48:49,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-12 05:48:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:49,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-07-12 05:48:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:50,000 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:50,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:50,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866458802] [2022-07-12 05:48:50,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866458802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:50,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:50,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-12 05:48:50,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594875016] [2022-07-12 05:48:50,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:50,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-12 05:48:50,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:50,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-12 05:48:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-07-12 05:48:50,002 INFO L87 Difference]: Start difference. First operand 541 states and 870 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:55,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:55,524 INFO L93 Difference]: Finished difference Result 1398 states and 2335 transitions. [2022-07-12 05:48:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-12 05:48:55,524 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2022-07-12 05:48:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:55,528 INFO L225 Difference]: With dead ends: 1398 [2022-07-12 05:48:55,528 INFO L226 Difference]: Without dead ends: 864 [2022-07-12 05:48:55,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:48:55,531 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 951 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 334 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 5323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:55,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 3633 Invalid, 5323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-12 05:48:55,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2022-07-12 05:48:55,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2022-07-12 05:48:55,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.618811881188119) internal successors, (654), 420 states have internal predecessors, (654), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2022-07-12 05:48:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 863 transitions. [2022-07-12 05:48:55,634 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 863 transitions. Word has length 120 [2022-07-12 05:48:55,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:55,634 INFO L495 AbstractCegarLoop]: Abstraction has 535 states and 863 transitions. [2022-07-12 05:48:55,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:55,635 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 863 transitions. [2022-07-12 05:48:55,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-07-12 05:48:55,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:55,637 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:55,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 05:48:55,638 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:55,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:55,638 INFO L85 PathProgramCache]: Analyzing trace with hash 711722076, now seen corresponding path program 1 times [2022-07-12 05:48:55,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:55,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802756902] [2022-07-12 05:48:55,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:55,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:55,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:55,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:55,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:55,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:48:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:48:55,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:48:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:55,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:48:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:48:55,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:55,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:55,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:48:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-12 05:48:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:55,978 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:48:55,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802756902] [2022-07-12 05:48:55,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802756902] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:55,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521457863] [2022-07-12 05:48:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:55,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:55,984 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:48:55,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-12 05:48:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:56,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 05:48:56,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:56,375 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:48:56,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:56,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521457863] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:56,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:56,375 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-12 05:48:56,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252953199] [2022-07-12 05:48:56,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:56,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:48:56,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:56,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:48:56,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:48:56,377 INFO L87 Difference]: Start difference. First operand 535 states and 863 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:56,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:56,590 INFO L93 Difference]: Finished difference Result 1516 states and 2477 transitions. [2022-07-12 05:48:56,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:48:56,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2022-07-12 05:48:56,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:56,596 INFO L225 Difference]: With dead ends: 1516 [2022-07-12 05:48:56,596 INFO L226 Difference]: Without dead ends: 999 [2022-07-12 05:48:56,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:48:56,599 INFO L413 NwaCegarLoop]: 1481 mSDtfsCounter, 790 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:56,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2240 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:48:56,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2022-07-12 05:48:56,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 984. [2022-07-12 05:48:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 750 states have (on average 1.632) internal successors, (1224), 781 states have internal predecessors, (1224), 187 states have call successors, (187), 47 states have call predecessors, (187), 46 states have return successors, (189), 181 states have call predecessors, (189), 184 states have call successors, (189) [2022-07-12 05:48:56,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1600 transitions. [2022-07-12 05:48:56,778 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1600 transitions. Word has length 121 [2022-07-12 05:48:56,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:56,778 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1600 transitions. [2022-07-12 05:48:56,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1600 transitions. [2022-07-12 05:48:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-12 05:48:56,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:56,782 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:56,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-12 05:48:56,997 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,SelfDestructingSolverStorable11 [2022-07-12 05:48:56,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:56,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:56,998 INFO L85 PathProgramCache]: Analyzing trace with hash 2085059873, now seen corresponding path program 1 times [2022-07-12 05:48:56,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:56,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110721158] [2022-07-12 05:48:56,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:56,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:48:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:48:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-07-12 05:48:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:48:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-12 05:48:57,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-12 05:48:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-12 05:48:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:48:57,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:57,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110721158] [2022-07-12 05:48:57,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110721158] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:48:57,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077895860] [2022-07-12 05:48:57,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:57,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:48:57,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:48:57,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:48:57,353 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-12 05:48:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:57,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 1639 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-12 05:48:57,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:48:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:48:57,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:48:57,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077895860] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:57,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:48:57,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-12 05:48:57,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266735178] [2022-07-12 05:48:57,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:57,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:48:57,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:57,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:48:57,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:48:57,720 INFO L87 Difference]: Start difference. First operand 984 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:48:58,001 INFO L93 Difference]: Finished difference Result 2414 states and 3953 transitions. [2022-07-12 05:48:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:48:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2022-07-12 05:48:58,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:48:58,008 INFO L225 Difference]: With dead ends: 2414 [2022-07-12 05:48:58,008 INFO L226 Difference]: Without dead ends: 1448 [2022-07-12 05:48:58,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:48:58,013 INFO L413 NwaCegarLoop]: 1536 mSDtfsCounter, 790 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:48:58,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2295 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:48:58,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2022-07-12 05:48:58,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1400. [2022-07-12 05:48:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1069 states have (on average 1.6445275958840038) internal successors, (1758), 1115 states have internal predecessors, (1758), 265 states have call successors, (265), 65 states have call predecessors, (265), 65 states have return successors, (272), 258 states have call predecessors, (272), 262 states have call successors, (272) [2022-07-12 05:48:58,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2295 transitions. [2022-07-12 05:48:58,309 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2295 transitions. Word has length 122 [2022-07-12 05:48:58,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:48:58,309 INFO L495 AbstractCegarLoop]: Abstraction has 1400 states and 2295 transitions. [2022-07-12 05:48:58,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-12 05:48:58,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2295 transitions. [2022-07-12 05:48:58,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-07-12 05:48:58,315 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:48:58,315 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:48:58,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-12 05:48:58,539 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,SelfDestructingSolverStorable12 [2022-07-12 05:48:58,540 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:48:58,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:48:58,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1609599375, now seen corresponding path program 1 times [2022-07-12 05:48:58,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:48:58,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329775566] [2022-07-12 05:48:58,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:48:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:48:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:58,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:48:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:48:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:48:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:48:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:48:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:48:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:48:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:48:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:48:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:48:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-12 05:48:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:48:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-07-12 05:48:58,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:48:58,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329775566] [2022-07-12 05:48:58,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329775566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:48:58,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:48:58,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:48:58,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912010231] [2022-07-12 05:48:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:48:58,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:48:58,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:48:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:48:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:48:58,861 INFO L87 Difference]: Start difference. First operand 1400 states and 2295 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:49:14,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:14,762 INFO L93 Difference]: Finished difference Result 6864 states and 12501 transitions. [2022-07-12 05:49:14,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:49:14,762 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2022-07-12 05:49:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:14,804 INFO L225 Difference]: With dead ends: 6864 [2022-07-12 05:49:14,805 INFO L226 Difference]: Without dead ends: 5482 [2022-07-12 05:49:14,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:49:14,818 INFO L413 NwaCegarLoop]: 1144 mSDtfsCounter, 2825 mSDsluCounter, 3006 mSDsCounter, 0 mSdLazyCounter, 8497 mSolverCounterSat, 1962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2942 SdHoareTripleChecker+Valid, 4150 SdHoareTripleChecker+Invalid, 10459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1962 IncrementalHoareTripleChecker+Valid, 8497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:14,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2942 Valid, 4150 Invalid, 10459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1962 Valid, 8497 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-07-12 05:49:14,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2022-07-12 05:49:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 3313. [2022-07-12 05:49:15,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2385 states have (on average 1.618867924528302) internal successors, (3861), 2569 states have internal predecessors, (3861), 765 states have call successors, (765), 124 states have call predecessors, (765), 162 states have return successors, (1192), 763 states have call predecessors, (1192), 761 states have call successors, (1192) [2022-07-12 05:49:15,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 5818 transitions. [2022-07-12 05:49:15,756 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 5818 transitions. Word has length 124 [2022-07-12 05:49:15,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:15,757 INFO L495 AbstractCegarLoop]: Abstraction has 3313 states and 5818 transitions. [2022-07-12 05:49:15,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:49:15,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 5818 transitions. [2022-07-12 05:49:15,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-12 05:49:15,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:15,764 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-07-12 05:49:15,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-12 05:49:15,764 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:15,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:15,765 INFO L85 PathProgramCache]: Analyzing trace with hash -616203294, now seen corresponding path program 1 times [2022-07-12 05:49:15,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:15,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350147330] [2022-07-12 05:49:15,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:15,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:49:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:16,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:49:16,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:49:16,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:49:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:49:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:49:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:49:16,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-12 05:49:16,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-12 05:49:16,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-12 05:49:16,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:16,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350147330] [2022-07-12 05:49:16,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350147330] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:49:16,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069099268] [2022-07-12 05:49:16,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:16,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:49:16,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:49:16,108 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:49:16,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-12 05:49:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:16,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-12 05:49:16,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:49:16,627 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:49:16,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:49:16,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069099268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:16,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:49:16,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2022-07-12 05:49:16,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927718980] [2022-07-12 05:49:16,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:16,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:49:16,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:16,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:49:16,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:49:16,630 INFO L87 Difference]: Start difference. First operand 3313 states and 5818 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:49:18,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:18,177 INFO L93 Difference]: Finished difference Result 9649 states and 17147 transitions. [2022-07-12 05:49:18,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:49:18,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2022-07-12 05:49:18,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:18,216 INFO L225 Difference]: With dead ends: 9649 [2022-07-12 05:49:18,216 INFO L226 Difference]: Without dead ends: 6355 [2022-07-12 05:49:18,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-07-12 05:49:18,241 INFO L413 NwaCegarLoop]: 974 mSDtfsCounter, 701 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:18,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [701 Valid, 1749 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 05:49:18,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2022-07-12 05:49:19,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6318. [2022-07-12 05:49:19,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 4520 states have (on average 1.5884955752212389) internal successors, (7180), 4886 states have internal predecessors, (7180), 1478 states have call successors, (1478), 242 states have call predecessors, (1478), 319 states have return successors, (2423), 1477 states have call predecessors, (2423), 1472 states have call successors, (2423) [2022-07-12 05:49:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 11081 transitions. [2022-07-12 05:49:19,769 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 11081 transitions. Word has length 125 [2022-07-12 05:49:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:19,769 INFO L495 AbstractCegarLoop]: Abstraction has 6318 states and 11081 transitions. [2022-07-12 05:49:19,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2022-07-12 05:49:19,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 11081 transitions. [2022-07-12 05:49:19,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:49:19,775 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:19,775 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:49:19,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-12 05:49:19,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:49:19,991 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:19,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:19,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1201905060, now seen corresponding path program 1 times [2022-07-12 05:49:19,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:19,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428558267] [2022-07-12 05:49:19,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:19,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:20,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:49:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:20,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:49:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:49:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:49:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:49:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:49:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:49:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:20,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:49:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:49:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:49:20,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:20,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428558267] [2022-07-12 05:49:20,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428558267] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:49:20,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886998281] [2022-07-12 05:49:20,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:20,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:49:20,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:49:20,418 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:49:20,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-12 05:49:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:20,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 1650 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-12 05:49:20,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:49:20,686 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-12 05:49:20,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:49:20,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886998281] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:20,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:49:20,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 12 [2022-07-12 05:49:20,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247428089] [2022-07-12 05:49:20,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:20,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 05:49:20,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:20,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 05:49:20,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:49:20,689 INFO L87 Difference]: Start difference. First operand 6318 states and 11081 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:49:23,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:23,810 INFO L93 Difference]: Finished difference Result 18840 states and 33352 transitions. [2022-07-12 05:49:23,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 05:49:23,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2022-07-12 05:49:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:23,867 INFO L225 Difference]: With dead ends: 18840 [2022-07-12 05:49:23,868 INFO L226 Difference]: Without dead ends: 12543 [2022-07-12 05:49:23,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-12 05:49:23,892 INFO L413 NwaCegarLoop]: 962 mSDtfsCounter, 850 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:23,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 1811 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 05:49:23,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12543 states. [2022-07-12 05:49:26,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12543 to 12440. [2022-07-12 05:49:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12440 states, 8916 states have (on average 1.5911843876177658) internal successors, (14187), 9628 states have internal predecessors, (14187), 2896 states have call successors, (2896), 466 states have call predecessors, (2896), 627 states have return successors, (4828), 2915 states have call predecessors, (4828), 2886 states have call successors, (4828) [2022-07-12 05:49:26,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12440 states to 12440 states and 21911 transitions. [2022-07-12 05:49:27,001 INFO L78 Accepts]: Start accepts. Automaton has 12440 states and 21911 transitions. Word has length 127 [2022-07-12 05:49:27,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:27,002 INFO L495 AbstractCegarLoop]: Abstraction has 12440 states and 21911 transitions. [2022-07-12 05:49:27,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:49:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 12440 states and 21911 transitions. [2022-07-12 05:49:27,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:49:27,008 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:27,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:49:27,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-12 05:49:27,233 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,SelfDestructingSolverStorable15 [2022-07-12 05:49:27,233 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:27,233 INFO L85 PathProgramCache]: Analyzing trace with hash 190787810, now seen corresponding path program 1 times [2022-07-12 05:49:27,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:27,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261886569] [2022-07-12 05:49:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:27,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:27,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:49:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:27,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:49:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:49:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:49:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:49:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-12 05:49:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:49:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:27,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-12 05:49:27,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:49:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,662 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-12 05:49:27,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:27,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261886569] [2022-07-12 05:49:27,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261886569] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-12 05:49:27,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666265800] [2022-07-12 05:49:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:27,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-12 05:49:27,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 05:49:27,664 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-12 05:49:27,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-12 05:49:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:27,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 1649 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-12 05:49:27,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 05:49:28,003 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-12 05:49:28,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 05:49:28,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666265800] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:28,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-12 05:49:28,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2022-07-12 05:49:28,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864594572] [2022-07-12 05:49:28,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:28,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 05:49:28,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 05:49:28,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2022-07-12 05:49:28,005 INFO L87 Difference]: Start difference. First operand 12440 states and 21911 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:49:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:32,085 INFO L93 Difference]: Finished difference Result 25163 states and 44877 transitions. [2022-07-12 05:49:32,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 05:49:32,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2022-07-12 05:49:32,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:32,167 INFO L225 Difference]: With dead ends: 25163 [2022-07-12 05:49:32,167 INFO L226 Difference]: Without dead ends: 12741 [2022-07-12 05:49:32,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-07-12 05:49:32,259 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 887 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 4263 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:32,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 4263 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-12 05:49:32,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12741 states. [2022-07-12 05:49:35,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12741 to 11951. [2022-07-12 05:49:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11951 states, 8439 states have (on average 1.5718687048228464) internal successors, (13265), 9150 states have internal predecessors, (13265), 2942 states have call successors, (2942), 426 states have call predecessors, (2942), 569 states have return successors, (4898), 2946 states have call predecessors, (4898), 2932 states have call successors, (4898) [2022-07-12 05:49:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11951 states to 11951 states and 21105 transitions. [2022-07-12 05:49:35,363 INFO L78 Accepts]: Start accepts. Automaton has 11951 states and 21105 transitions. Word has length 127 [2022-07-12 05:49:35,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:35,364 INFO L495 AbstractCegarLoop]: Abstraction has 11951 states and 21105 transitions. [2022-07-12 05:49:35,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-07-12 05:49:35,365 INFO L276 IsEmpty]: Start isEmpty. Operand 11951 states and 21105 transitions. [2022-07-12 05:49:35,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-07-12 05:49:35,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:35,370 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:49:35,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-12 05:49:35,597 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,SelfDestructingSolverStorable16 [2022-07-12 05:49:35,598 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:35,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:35,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1126236296, now seen corresponding path program 1 times [2022-07-12 05:49:35,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:35,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527530145] [2022-07-12 05:49:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:35,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:49:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:49:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:49:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:49:35,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-12 05:49:35,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-12 05:49:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:49:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:35,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-12 05:49:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:49:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:35,895 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-07-12 05:49:35,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:35,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527530145] [2022-07-12 05:49:35,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527530145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:35,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:35,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:49:35,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719966809] [2022-07-12 05:49:35,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:35,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:49:35,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:35,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:49:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:49:35,898 INFO L87 Difference]: Start difference. First operand 11951 states and 21105 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, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:49:44,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:49:44,520 INFO L93 Difference]: Finished difference Result 27269 states and 49820 transitions. [2022-07-12 05:49:44,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:49:44,521 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, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2022-07-12 05:49:44,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:49:44,636 INFO L225 Difference]: With dead ends: 27269 [2022-07-12 05:49:44,636 INFO L226 Difference]: Without dead ends: 15336 [2022-07-12 05:49:44,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:49:44,737 INFO L413 NwaCegarLoop]: 863 mSDtfsCounter, 1942 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 737 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:49:44,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 2026 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-12 05:49:44,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15336 states. [2022-07-12 05:49:47,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15336 to 11429. [2022-07-12 05:49:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11429 states, 8223 states have (on average 1.5684056913535207) internal successors, (12897), 8842 states have internal predecessors, (12897), 2616 states have call successors, (2616), 434 states have call predecessors, (2616), 589 states have return successors, (4397), 2612 states have call predecessors, (4397), 2606 states have call successors, (4397) [2022-07-12 05:49:47,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11429 states to 11429 states and 19910 transitions. [2022-07-12 05:49:47,715 INFO L78 Accepts]: Start accepts. Automaton has 11429 states and 19910 transitions. Word has length 127 [2022-07-12 05:49:47,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:49:47,715 INFO L495 AbstractCegarLoop]: Abstraction has 11429 states and 19910 transitions. [2022-07-12 05:49:47,716 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, (18), 5 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-07-12 05:49:47,716 INFO L276 IsEmpty]: Start isEmpty. Operand 11429 states and 19910 transitions. [2022-07-12 05:49:47,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-12 05:49:47,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:49:47,720 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:49:47,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-12 05:49:47,720 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:49:47,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:49:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash -710353866, now seen corresponding path program 1 times [2022-07-12 05:49:47,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:49:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11296564] [2022-07-12 05:49:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:49:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:49:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:49:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:49:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:49:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:49:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:49:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:49:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:49:47,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-12 05:49:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-12 05:49:47,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:49:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:49:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-12 05:49:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-12 05:49:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:49:47,990 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-07-12 05:49:47,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:49:47,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11296564] [2022-07-12 05:49:47,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11296564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:49:47,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:49:47,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:49:47,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856430159] [2022-07-12 05:49:47,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:49:47,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:49:47,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:49:47,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:49:47,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:49:47,994 INFO L87 Difference]: Start difference. First operand 11429 states and 19910 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:50:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:14,783 INFO L93 Difference]: Finished difference Result 49806 states and 97781 transitions. [2022-07-12 05:50:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:50:14,784 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2022-07-12 05:50:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:15,091 INFO L225 Difference]: With dead ends: 49806 [2022-07-12 05:50:15,091 INFO L226 Difference]: Without dead ends: 38395 [2022-07-12 05:50:15,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:50:15,192 INFO L413 NwaCegarLoop]: 1184 mSDtfsCounter, 4832 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 7991 mSolverCounterSat, 2936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4949 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 10927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2936 IncrementalHoareTripleChecker+Valid, 7991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:15,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4949 Valid, 4168 Invalid, 10927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2936 Valid, 7991 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2022-07-12 05:50:15,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38395 states. [2022-07-12 05:50:21,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38395 to 22721. [2022-07-12 05:50:21,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22721 states, 16352 states have (on average 1.5651908023483365) internal successors, (25594), 17581 states have internal predecessors, (25594), 5187 states have call successors, (5187), 862 states have call predecessors, (5187), 1181 states have return successors, (9651), 5197 states have call predecessors, (9651), 5169 states have call successors, (9651) [2022-07-12 05:50:22,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22721 states to 22721 states and 40432 transitions. [2022-07-12 05:50:22,128 INFO L78 Accepts]: Start accepts. Automaton has 22721 states and 40432 transitions. Word has length 135 [2022-07-12 05:50:22,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:22,128 INFO L495 AbstractCegarLoop]: Abstraction has 22721 states and 40432 transitions. [2022-07-12 05:50:22,129 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2022-07-12 05:50:22,129 INFO L276 IsEmpty]: Start isEmpty. Operand 22721 states and 40432 transitions. [2022-07-12 05:50:22,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-07-12 05:50:22,133 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:22,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:50:22,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-12 05:50:22,134 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:22,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:22,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1725870857, now seen corresponding path program 1 times [2022-07-12 05:50:22,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:22,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639917605] [2022-07-12 05:50:22,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:22,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:50:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:50:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:50:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:50:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:50:22,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:50:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:50:22,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-07-12 05:50:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-12 05:50:22,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:50:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-12 05:50:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:50:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:22,401 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-07-12 05:50:22,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:22,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639917605] [2022-07-12 05:50:22,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639917605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:22,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:22,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:50:22,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906182138] [2022-07-12 05:50:22,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:22,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:50:22,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:22,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:50:22,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:50:22,403 INFO L87 Difference]: Start difference. First operand 22721 states and 40432 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:50:35,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:50:35,342 INFO L93 Difference]: Finished difference Result 51200 states and 96675 transitions. [2022-07-12 05:50:35,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-12 05:50:35,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2022-07-12 05:50:35,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:50:35,553 INFO L225 Difference]: With dead ends: 51200 [2022-07-12 05:50:35,553 INFO L226 Difference]: Without dead ends: 28497 [2022-07-12 05:50:35,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-07-12 05:50:35,720 INFO L413 NwaCegarLoop]: 869 mSDtfsCounter, 961 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2604 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-12 05:50:35,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 2138 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2604 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-12 05:50:35,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28497 states. [2022-07-12 05:50:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28497 to 22801. [2022-07-12 05:50:41,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22801 states, 16424 states have (on average 1.5632001948368242) internal successors, (25674), 17637 states have internal predecessors, (25674), 5187 states have call successors, (5187), 894 states have call predecessors, (5187), 1189 states have return successors, (9611), 5189 states have call predecessors, (9611), 5169 states have call successors, (9611) [2022-07-12 05:50:41,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22801 states to 22801 states and 40472 transitions. [2022-07-12 05:50:41,997 INFO L78 Accepts]: Start accepts. Automaton has 22801 states and 40472 transitions. Word has length 136 [2022-07-12 05:50:41,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:50:41,997 INFO L495 AbstractCegarLoop]: Abstraction has 22801 states and 40472 transitions. [2022-07-12 05:50:41,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-12 05:50:41,998 INFO L276 IsEmpty]: Start isEmpty. Operand 22801 states and 40472 transitions. [2022-07-12 05:50:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-12 05:50:42,105 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:50:42,106 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:50:42,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-12 05:50:42,106 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:50:42,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:50:42,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1967892634, now seen corresponding path program 1 times [2022-07-12 05:50:42,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:50:42,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674532434] [2022-07-12 05:50:42,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:50:42,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:50:42,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:50:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:42,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:50:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:42,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:50:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:50:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:50:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:50:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:50:42,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:50:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-12 05:50:42,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-12 05:50:42,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-12 05:50:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:50:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:50:42,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-12 05:50:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-12 05:50:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:50:42,424 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-12 05:50:42,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:50:42,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674532434] [2022-07-12 05:50:42,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674532434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:50:42,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:50:42,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-12 05:50:42,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026766925] [2022-07-12 05:50:42,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:50:42,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-12 05:50:42,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:50:42,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-12 05:50:42,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-12 05:50:42,426 INFO L87 Difference]: Start difference. First operand 22801 states and 40472 transitions. Second operand has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 05:51:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 05:51:25,125 INFO L93 Difference]: Finished difference Result 98910 states and 206873 transitions. [2022-07-12 05:51:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-12 05:51:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2022-07-12 05:51:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 05:51:26,034 INFO L225 Difference]: With dead ends: 98910 [2022-07-12 05:51:26,035 INFO L226 Difference]: Without dead ends: 76127 [2022-07-12 05:51:26,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2022-07-12 05:51:26,355 INFO L413 NwaCegarLoop]: 1210 mSDtfsCounter, 4795 mSDsluCounter, 2984 mSDsCounter, 0 mSdLazyCounter, 8028 mSolverCounterSat, 2923 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4913 SdHoareTripleChecker+Valid, 4194 SdHoareTripleChecker+Invalid, 10951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2923 IncrementalHoareTripleChecker+Valid, 8028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-07-12 05:51:26,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4913 Valid, 4194 Invalid, 10951 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2923 Valid, 8028 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-07-12 05:51:26,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76127 states. [2022-07-12 05:51:39,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76127 to 45541. [2022-07-12 05:51:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45541 states, 32811 states have (on average 1.560177989089025) internal successors, (51191), 35228 states have internal predecessors, (51191), 10340 states have call successors, (10340), 1782 states have call predecessors, (10340), 2389 states have return successors, (21737), 10370 states have call predecessors, (21737), 10306 states have call successors, (21737) [2022-07-12 05:51:40,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45541 states to 45541 states and 83268 transitions. [2022-07-12 05:51:40,160 INFO L78 Accepts]: Start accepts. Automaton has 45541 states and 83268 transitions. Word has length 145 [2022-07-12 05:51:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 05:51:40,160 INFO L495 AbstractCegarLoop]: Abstraction has 45541 states and 83268 transitions. [2022-07-12 05:51:40,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.88888888888889) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2022-07-12 05:51:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand 45541 states and 83268 transitions. [2022-07-12 05:51:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-07-12 05:51:40,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 05:51:40,165 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 05:51:40,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-12 05:51:40,165 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 05:51:40,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 05:51:40,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1698097119, now seen corresponding path program 1 times [2022-07-12 05:51:40,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 05:51:40,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037936884] [2022-07-12 05:51:40,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 05:51:40,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 05:51:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:40,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 05:51:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-12 05:51:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-12 05:51:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-12 05:51:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-12 05:51:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-12 05:51:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-12 05:51:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-07-12 05:51:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-12 05:51:40,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-12 05:51:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 05:51:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 05:51:40,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-12 05:51:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-12 05:51:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 05:51:40,434 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-07-12 05:51:40,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 05:51:40,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037936884] [2022-07-12 05:51:40,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037936884] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 05:51:40,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 05:51:40,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 05:51:40,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222192397] [2022-07-12 05:51:40,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 05:51:40,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 05:51:40,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 05:51:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 05:51:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-12 05:51:40,436 INFO L87 Difference]: Start difference. First operand 45541 states and 83268 transitions. Second operand has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (20), 5 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18)