./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.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 c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 06:04:08,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 06:04:08,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 06:04:08,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 06:04:08,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 06:04:08,550 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 06:04:08,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 06:04:08,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 06:04:08,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 06:04:08,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 06:04:08,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 06:04:08,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 06:04:08,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 06:04:08,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 06:04:08,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 06:04:08,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 06:04:08,570 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 06:04:08,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 06:04:08,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 06:04:08,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 06:04:08,577 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 06:04:08,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 06:04:08,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 06:04:08,580 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 06:04:08,581 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 06:04:08,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 06:04:08,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 06:04:08,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 06:04:08,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 06:04:08,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 06:04:08,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 06:04:08,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 06:04:08,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 06:04:08,591 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 06:04:08,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 06:04:08,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 06:04:08,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 06:04:08,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 06:04:08,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 06:04:08,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 06:04:08,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 06:04:08,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 06:04:08,598 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 06:04:08,624 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 06:04:08,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 06:04:08,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 06:04:08,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 06:04:08,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 06:04:08,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 06:04:08,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 06:04:08,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 06:04:08,627 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 06:04:08,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 06:04:08,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 06:04:08,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 06:04:08,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 06:04:08,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 06:04:08,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 06:04:08,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 06:04:08,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 06:04:08,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 06:04:08,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 06:04:08,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:04:08,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 06:04:08,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 06:04:08,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 06:04:08,631 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 06:04:08,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 06:04:08,631 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 06:04:08,631 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 06:04:08,631 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 06:04:08,632 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 [2022-07-21 06:04:08,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 06:04:08,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 06:04:08,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 06:04:08,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 06:04:08,916 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 06:04:08,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 06:04:08,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61ef911f/20864039fd0d4520b2ec9ad5979a1158/FLAGe86cddb95 [2022-07-21 06:04:09,452 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 06:04:09,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 06:04:09,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61ef911f/20864039fd0d4520b2ec9ad5979a1158/FLAGe86cddb95 [2022-07-21 06:04:09,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f61ef911f/20864039fd0d4520b2ec9ad5979a1158 [2022-07-21 06:04:09,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 06:04:09,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 06:04:09,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 06:04:09,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 06:04:09,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 06:04:09,736 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:04:09" (1/1) ... [2022-07-21 06:04:09,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be2863d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:09, skipping insertion in model container [2022-07-21 06:04:09,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:04:09" (1/1) ... [2022-07-21 06:04:09,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 06:04:09,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 06:04:10,204 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2022-07-21 06:04:10,260 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2022-07-21 06:04:10,278 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2022-07-21 06:04:10,288 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2022-07-21 06:04:10,302 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2022-07-21 06:04:10,330 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2022-07-21 06:04:10,354 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2022-07-21 06:04:10,368 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2022-07-21 06:04:10,386 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2022-07-21 06:04:10,397 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2022-07-21 06:04:10,410 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2022-07-21 06:04:10,424 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2022-07-21 06:04:10,431 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2022-07-21 06:04:10,438 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2022-07-21 06:04:10,445 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2022-07-21 06:04:10,452 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2022-07-21 06:04:10,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:04:10,485 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 06:04:10,564 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2022-07-21 06:04:10,586 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2022-07-21 06:04:10,600 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2022-07-21 06:04:10,605 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2022-07-21 06:04:10,610 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2022-07-21 06:04:10,632 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2022-07-21 06:04:10,641 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2022-07-21 06:04:10,646 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2022-07-21 06:04:10,651 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2022-07-21 06:04:10,667 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2022-07-21 06:04:10,671 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2022-07-21 06:04:10,676 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2022-07-21 06:04:10,681 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2022-07-21 06:04:10,687 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2022-07-21 06:04:10,692 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2022-07-21 06:04:10,697 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/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2022-07-21 06:04:10,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:04:10,725 INFO L208 MainTranslator]: Completed translation [2022-07-21 06:04:10,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10 WrapperNode [2022-07-21 06:04:10,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 06:04:10,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 06:04:10,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 06:04:10,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 06:04:10,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,844 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 5403 [2022-07-21 06:04:10,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 06:04:10,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 06:04:10,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 06:04:10,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 06:04:10,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,922 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,931 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 06:04:10,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 06:04:10,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 06:04:10,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 06:04:10,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (1/1) ... [2022-07-21 06:04:10,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:04:10,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:04:10,972 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 06:04:10,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 06:04:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 06:04:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 06:04:10,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 06:04:10,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 06:04:11,158 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 06:04:11,160 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 06:04:12,932 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 06:04:12,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 06:04:12,945 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 06:04:12,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:04:12 BoogieIcfgContainer [2022-07-21 06:04:12,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 06:04:12,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 06:04:12,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 06:04:12,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 06:04:12,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:04:09" (1/3) ... [2022-07-21 06:04:12,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633fc1d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:04:12, skipping insertion in model container [2022-07-21 06:04:12,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:04:10" (2/3) ... [2022-07-21 06:04:12,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633fc1d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:04:12, skipping insertion in model container [2022-07-21 06:04:12,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:04:12" (3/3) ... [2022-07-21 06:04:12,954 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2022-07-21 06:04:12,963 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 06:04:12,964 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-07-21 06:04:13,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 06:04:13,015 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@6cd4fc00, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@41807700 [2022-07-21 06:04:13,015 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-07-21 06:04:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:13,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 06:04:13,035 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:13,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:13,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:13,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:13,040 INFO L85 PathProgramCache]: Analyzing trace with hash -659325864, now seen corresponding path program 1 times [2022-07-21 06:04:13,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:13,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620320799] [2022-07-21 06:04:13,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:13,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:13,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620320799] [2022-07-21 06:04:13,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620320799] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:13,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:13,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:04:13,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994492657] [2022-07-21 06:04:13,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:13,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:04:13,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:13,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:04:13,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:04:13,463 INFO L87 Difference]: Start difference. First operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:14,183 INFO L93 Difference]: Finished difference Result 1449 states and 2552 transitions. [2022-07-21 06:04:14,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:04:14,185 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 06:04:14,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:14,196 INFO L225 Difference]: With dead ends: 1449 [2022-07-21 06:04:14,196 INFO L226 Difference]: Without dead ends: 871 [2022-07-21 06:04:14,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:04:14,202 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 4493 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:14,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 857 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:04:14,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2022-07-21 06:04:14,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2022-07-21 06:04:14,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 855 states have (on average 1.3192982456140352) internal successors, (1128), 870 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1128 transitions. [2022-07-21 06:04:14,287 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1128 transitions. Word has length 72 [2022-07-21 06:04:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:14,287 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1128 transitions. [2022-07-21 06:04:14,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,288 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1128 transitions. [2022-07-21 06:04:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 06:04:14,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:14,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:14,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 06:04:14,291 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:14,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:14,291 INFO L85 PathProgramCache]: Analyzing trace with hash -954340830, now seen corresponding path program 1 times [2022-07-21 06:04:14,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:14,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120500586] [2022-07-21 06:04:14,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:14,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:14,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:14,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120500586] [2022-07-21 06:04:14,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120500586] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:14,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:14,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:04:14,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794819095] [2022-07-21 06:04:14,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:14,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:04:14,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:14,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:04:14,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:04:14,408 INFO L87 Difference]: Start difference. First operand 871 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:14,898 INFO L93 Difference]: Finished difference Result 1240 states and 1621 transitions. [2022-07-21 06:04:14,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:04:14,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 06:04:14,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:14,902 INFO L225 Difference]: With dead ends: 1240 [2022-07-21 06:04:14,902 INFO L226 Difference]: Without dead ends: 807 [2022-07-21 06:04:14,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:04:14,905 INFO L413 NwaCegarLoop]: 455 mSDtfsCounter, 3029 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:14,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3029 Valid, 491 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:04:14,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2022-07-21 06:04:14,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 807. [2022-07-21 06:04:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 791 states have (on average 1.3337547408343868) internal successors, (1055), 806 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1055 transitions. [2022-07-21 06:04:14,943 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1055 transitions. Word has length 72 [2022-07-21 06:04:14,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:14,944 INFO L495 AbstractCegarLoop]: Abstraction has 807 states and 1055 transitions. [2022-07-21 06:04:14,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:14,944 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1055 transitions. [2022-07-21 06:04:14,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-21 06:04:14,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:14,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:14,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 06:04:14,948 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:14,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:14,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1430025351, now seen corresponding path program 1 times [2022-07-21 06:04:14,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:14,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340710181] [2022-07-21 06:04:14,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:14,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:15,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:15,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:15,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340710181] [2022-07-21 06:04:15,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340710181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:15,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:15,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:04:15,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290444551] [2022-07-21 06:04:15,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:15,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:04:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:15,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:04:15,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:04:15,031 INFO L87 Difference]: Start difference. First operand 807 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:15,330 INFO L93 Difference]: Finished difference Result 944 states and 1219 transitions. [2022-07-21 06:04:15,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:04:15,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-07-21 06:04:15,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:15,335 INFO L225 Difference]: With dead ends: 944 [2022-07-21 06:04:15,335 INFO L226 Difference]: Without dead ends: 539 [2022-07-21 06:04:15,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:04:15,339 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 1993 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:15,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1993 Valid, 373 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:04:15,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2022-07-21 06:04:15,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2022-07-21 06:04:15,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 523 states have (on average 1.3346080305927341) internal successors, (698), 538 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 698 transitions. [2022-07-21 06:04:15,363 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 698 transitions. Word has length 72 [2022-07-21 06:04:15,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:15,364 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 698 transitions. [2022-07-21 06:04:15,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 698 transitions. [2022-07-21 06:04:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-21 06:04:15,367 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:15,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 06:04:15,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:15,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:15,370 INFO L85 PathProgramCache]: Analyzing trace with hash 463143434, now seen corresponding path program 1 times [2022-07-21 06:04:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:15,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420697792] [2022-07-21 06:04:15,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:15,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:15,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:15,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:15,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420697792] [2022-07-21 06:04:15,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420697792] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:15,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:15,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:04:15,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418540201] [2022-07-21 06:04:15,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:15,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:04:15,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:15,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:04:15,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:04:15,480 INFO L87 Difference]: Start difference. First operand 539 states and 698 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:15,718 INFO L93 Difference]: Finished difference Result 748 states and 969 transitions. [2022-07-21 06:04:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:04:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-21 06:04:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:15,721 INFO L225 Difference]: With dead ends: 748 [2022-07-21 06:04:15,721 INFO L226 Difference]: Without dead ends: 460 [2022-07-21 06:04:15,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:04:15,723 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 1725 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:15,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1725 Valid, 330 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:04:15,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2022-07-21 06:04:15,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2022-07-21 06:04:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 444 states have (on average 1.3468468468468469) internal successors, (598), 459 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 598 transitions. [2022-07-21 06:04:15,746 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 598 transitions. Word has length 73 [2022-07-21 06:04:15,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:15,748 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 598 transitions. [2022-07-21 06:04:15,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,748 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 598 transitions. [2022-07-21 06:04:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-07-21 06:04:15,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:15,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:15,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 06:04:15,749 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:15,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:15,750 INFO L85 PathProgramCache]: Analyzing trace with hash -2053820617, now seen corresponding path program 1 times [2022-07-21 06:04:15,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:15,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912109899] [2022-07-21 06:04:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:15,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:15,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:15,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912109899] [2022-07-21 06:04:15,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912109899] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:15,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:15,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:04:15,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210911627] [2022-07-21 06:04:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:15,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:04:15,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:15,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:04:15,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:04:15,809 INFO L87 Difference]: Start difference. First operand 460 states and 598 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:15,967 INFO L93 Difference]: Finished difference Result 637 states and 824 transitions. [2022-07-21 06:04:15,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:04:15,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-07-21 06:04:15,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:15,968 INFO L225 Difference]: With dead ends: 637 [2022-07-21 06:04:15,968 INFO L226 Difference]: Without dead ends: 390 [2022-07-21 06:04:15,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:04:15,969 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 1435 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:15,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 303 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:04:15,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-07-21 06:04:15,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2022-07-21 06:04:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3502673796791445) internal successors, (505), 389 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 505 transitions. [2022-07-21 06:04:15,984 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 505 transitions. Word has length 74 [2022-07-21 06:04:15,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:15,984 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 505 transitions. [2022-07-21 06:04:15,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 505 transitions. [2022-07-21 06:04:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 06:04:15,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:15,985 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:15,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 06:04:15,985 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:15,986 INFO L85 PathProgramCache]: Analyzing trace with hash 892076084, now seen corresponding path program 1 times [2022-07-21 06:04:15,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:15,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540593314] [2022-07-21 06:04:15,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:15,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:16,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:16,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:16,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540593314] [2022-07-21 06:04:16,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540593314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:16,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:16,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:04:16,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617749632] [2022-07-21 06:04:16,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:16,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:04:16,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:16,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:04:16,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:04:16,100 INFO L87 Difference]: Start difference. First operand 390 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:16,570 INFO L93 Difference]: Finished difference Result 754 states and 962 transitions. [2022-07-21 06:04:16,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:04:16,571 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 06:04:16,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:16,573 INFO L225 Difference]: With dead ends: 754 [2022-07-21 06:04:16,573 INFO L226 Difference]: Without dead ends: 542 [2022-07-21 06:04:16,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-07-21 06:04:16,574 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 2635 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:16,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 918 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:04:16,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-07-21 06:04:16,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 390. [2022-07-21 06:04:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3475935828877006) internal successors, (504), 389 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2022-07-21 06:04:16,594 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 75 [2022-07-21 06:04:16,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:16,594 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2022-07-21 06:04:16,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:16,595 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2022-07-21 06:04:16,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 06:04:16,595 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:16,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:16,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 06:04:16,596 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:16,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:16,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1107897332, now seen corresponding path program 1 times [2022-07-21 06:04:16,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:16,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104231444] [2022-07-21 06:04:16,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:16,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:16,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:16,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:16,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:16,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104231444] [2022-07-21 06:04:16,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104231444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:16,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:16,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:16,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040573339] [2022-07-21 06:04:16,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:16,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:16,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:16,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:16,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:16,696 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:17,325 INFO L93 Difference]: Finished difference Result 712 states and 935 transitions. [2022-07-21 06:04:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 06:04:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:17,327 INFO L225 Difference]: With dead ends: 712 [2022-07-21 06:04:17,327 INFO L226 Difference]: Without dead ends: 707 [2022-07-21 06:04:17,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:17,328 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 2196 mSDsluCounter, 1044 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1374 SdHoareTripleChecker+Invalid, 1197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:17,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 1374 Invalid, 1197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-21 06:04:17,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-07-21 06:04:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3449197860962567) internal successors, (503), 389 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2022-07-21 06:04:17,349 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 75 [2022-07-21 06:04:17,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:17,349 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2022-07-21 06:04:17,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2022-07-21 06:04:17,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-21 06:04:17,350 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:17,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:17,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 06:04:17,351 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:17,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:17,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1055548212, now seen corresponding path program 1 times [2022-07-21 06:04:17,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:17,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126930122] [2022-07-21 06:04:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:17,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:17,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:17,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:17,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:17,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126930122] [2022-07-21 06:04:17,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126930122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:17,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:17,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:17,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610833701] [2022-07-21 06:04:17,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:17,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:17,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:17,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:17,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:17,449 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:18,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:18,306 INFO L93 Difference]: Finished difference Result 863 states and 1158 transitions. [2022-07-21 06:04:18,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:18,308 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-21 06:04:18,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:18,310 INFO L225 Difference]: With dead ends: 863 [2022-07-21 06:04:18,310 INFO L226 Difference]: Without dead ends: 735 [2022-07-21 06:04:18,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:18,311 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 2655 mSDsluCounter, 1858 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 1705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:18,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 2300 Invalid, 1705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:04:18,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-07-21 06:04:18,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 390. [2022-07-21 06:04:18,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3422459893048129) internal successors, (502), 389 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:18,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 502 transitions. [2022-07-21 06:04:18,333 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 502 transitions. Word has length 75 [2022-07-21 06:04:18,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:18,333 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 502 transitions. [2022-07-21 06:04:18,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:18,333 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 502 transitions. [2022-07-21 06:04:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:18,334 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:18,334 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:18,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 06:04:18,335 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:18,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:18,335 INFO L85 PathProgramCache]: Analyzing trace with hash -101200913, now seen corresponding path program 1 times [2022-07-21 06:04:18,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:18,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531409885] [2022-07-21 06:04:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:18,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:18,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:18,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:18,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531409885] [2022-07-21 06:04:18,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531409885] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:18,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:18,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428490561] [2022-07-21 06:04:18,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:18,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:18,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:18,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:18,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:18,427 INFO L87 Difference]: Start difference. First operand 390 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:19,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:19,133 INFO L93 Difference]: Finished difference Result 829 states and 1109 transitions. [2022-07-21 06:04:19,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:19,134 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:19,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:19,136 INFO L225 Difference]: With dead ends: 829 [2022-07-21 06:04:19,136 INFO L226 Difference]: Without dead ends: 731 [2022-07-21 06:04:19,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:04:19,137 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2834 mSDsluCounter, 1233 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2834 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 1259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:19,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2834 Valid, 1624 Invalid, 1259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:19,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-21 06:04:19,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2022-07-21 06:04:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.339572192513369) internal successors, (501), 389 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 501 transitions. [2022-07-21 06:04:19,162 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 501 transitions. Word has length 77 [2022-07-21 06:04:19,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:19,162 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 501 transitions. [2022-07-21 06:04:19,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:19,162 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 501 transitions. [2022-07-21 06:04:19,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:19,163 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:19,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:19,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 06:04:19,163 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:19,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash 798728465, now seen corresponding path program 1 times [2022-07-21 06:04:19,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:19,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886470449] [2022-07-21 06:04:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:19,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:19,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:19,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:19,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886470449] [2022-07-21 06:04:19,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886470449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:19,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:19,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:19,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436036859] [2022-07-21 06:04:19,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:19,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:19,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:19,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:19,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:19,293 INFO L87 Difference]: Start difference. First operand 390 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:20,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:20,050 INFO L93 Difference]: Finished difference Result 799 states and 1064 transitions. [2022-07-21 06:04:20,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:20,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:20,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:20,053 INFO L225 Difference]: With dead ends: 799 [2022-07-21 06:04:20,053 INFO L226 Difference]: Without dead ends: 723 [2022-07-21 06:04:20,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:20,054 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 1946 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1946 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:20,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1946 Valid, 1962 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:04:20,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-21 06:04:20,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2022-07-21 06:04:20,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3368983957219251) internal successors, (500), 389 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:20,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 500 transitions. [2022-07-21 06:04:20,080 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 500 transitions. Word has length 77 [2022-07-21 06:04:20,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:20,080 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 500 transitions. [2022-07-21 06:04:20,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:20,080 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 500 transitions. [2022-07-21 06:04:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:20,081 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:20,081 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:20,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 06:04:20,081 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:20,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:20,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1612110043, now seen corresponding path program 1 times [2022-07-21 06:04:20,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:20,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674508419] [2022-07-21 06:04:20,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:20,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:20,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:20,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674508419] [2022-07-21 06:04:20,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674508419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:20,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:20,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 06:04:20,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375858447] [2022-07-21 06:04:20,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:20,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 06:04:20,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:20,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 06:04:20,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:04:20,197 INFO L87 Difference]: Start difference. First operand 390 states and 500 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:21,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:21,464 INFO L93 Difference]: Finished difference Result 1026 states and 1382 transitions. [2022-07-21 06:04:21,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:04:21,465 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:21,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:21,467 INFO L225 Difference]: With dead ends: 1026 [2022-07-21 06:04:21,467 INFO L226 Difference]: Without dead ends: 883 [2022-07-21 06:04:21,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2022-07-21 06:04:21,468 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2324 mSDsluCounter, 2548 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2324 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:21,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2324 Valid, 3135 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:04:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2022-07-21 06:04:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 390. [2022-07-21 06:04:21,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3342245989304813) internal successors, (499), 389 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:21,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 499 transitions. [2022-07-21 06:04:21,506 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 499 transitions. Word has length 77 [2022-07-21 06:04:21,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:21,506 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 499 transitions. [2022-07-21 06:04:21,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:21,507 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 499 transitions. [2022-07-21 06:04:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:21,508 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:21,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:21,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 06:04:21,509 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1927792199, now seen corresponding path program 1 times [2022-07-21 06:04:21,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:21,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833289060] [2022-07-21 06:04:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:21,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:21,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:21,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833289060] [2022-07-21 06:04:21,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833289060] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:21,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:21,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:21,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662594746] [2022-07-21 06:04:21,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:21,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:21,688 INFO L87 Difference]: Start difference. First operand 390 states and 499 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:23,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:23,386 INFO L93 Difference]: Finished difference Result 1347 states and 1862 transitions. [2022-07-21 06:04:23,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:04:23,387 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:23,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:23,391 INFO L225 Difference]: With dead ends: 1347 [2022-07-21 06:04:23,392 INFO L226 Difference]: Without dead ends: 1249 [2022-07-21 06:04:23,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:04:23,393 INFO L413 NwaCegarLoop]: 701 mSDtfsCounter, 4800 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 2707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:23,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4800 Valid, 2788 Invalid, 2707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 06:04:23,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-07-21 06:04:23,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 394. [2022-07-21 06:04:23,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3306878306878307) internal successors, (503), 393 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:23,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 503 transitions. [2022-07-21 06:04:23,434 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 503 transitions. Word has length 77 [2022-07-21 06:04:23,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:23,435 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 503 transitions. [2022-07-21 06:04:23,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 503 transitions. [2022-07-21 06:04:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:23,436 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:23,436 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:23,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 06:04:23,436 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:23,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:23,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1181439000, now seen corresponding path program 1 times [2022-07-21 06:04:23,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:23,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004630343] [2022-07-21 06:04:23,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:23,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:23,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:23,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004630343] [2022-07-21 06:04:23,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004630343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:23,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:23,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359717365] [2022-07-21 06:04:23,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:23,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:23,546 INFO L87 Difference]: Start difference. First operand 394 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:24,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:24,293 INFO L93 Difference]: Finished difference Result 803 states and 1067 transitions. [2022-07-21 06:04:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:24,293 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:24,296 INFO L225 Difference]: With dead ends: 803 [2022-07-21 06:04:24,296 INFO L226 Difference]: Without dead ends: 727 [2022-07-21 06:04:24,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:04:24,297 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 2836 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:24,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 1521 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:24,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-21 06:04:24,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-21 06:04:24,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3280423280423281) internal successors, (502), 393 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:24,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 502 transitions. [2022-07-21 06:04:24,339 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 502 transitions. Word has length 77 [2022-07-21 06:04:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:24,339 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 502 transitions. [2022-07-21 06:04:24,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:24,340 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 502 transitions. [2022-07-21 06:04:24,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:24,340 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:24,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:24,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 06:04:24,341 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:24,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:24,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1913205315, now seen corresponding path program 1 times [2022-07-21 06:04:24,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:24,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770113925] [2022-07-21 06:04:24,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:24,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:24,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:24,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:24,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770113925] [2022-07-21 06:04:24,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770113925] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:24,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:24,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:24,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682515206] [2022-07-21 06:04:24,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:24,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:24,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:24,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:24,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:24,432 INFO L87 Difference]: Start difference. First operand 394 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:25,148 INFO L93 Difference]: Finished difference Result 799 states and 1062 transitions. [2022-07-21 06:04:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:25,149 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:25,151 INFO L225 Difference]: With dead ends: 799 [2022-07-21 06:04:25,151 INFO L226 Difference]: Without dead ends: 727 [2022-07-21 06:04:25,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:04:25,152 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 2880 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 1490 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:25,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 1490 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:25,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-21 06:04:25,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-21 06:04:25,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3253968253968254) internal successors, (501), 393 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 501 transitions. [2022-07-21 06:04:25,192 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 501 transitions. Word has length 77 [2022-07-21 06:04:25,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:25,192 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 501 transitions. [2022-07-21 06:04:25,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:25,192 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 501 transitions. [2022-07-21 06:04:25,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:25,193 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:25,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:25,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 06:04:25,193 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:25,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:25,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1712553496, now seen corresponding path program 1 times [2022-07-21 06:04:25,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:25,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223551081] [2022-07-21 06:04:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:25,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:25,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:25,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:25,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223551081] [2022-07-21 06:04:25,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223551081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:25,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:25,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:25,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479438730] [2022-07-21 06:04:25,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:25,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:25,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:25,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:25,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:25,316 INFO L87 Difference]: Start difference. First operand 394 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:25,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:25,973 INFO L93 Difference]: Finished difference Result 777 states and 1024 transitions. [2022-07-21 06:04:25,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:25,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:25,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:25,976 INFO L225 Difference]: With dead ends: 777 [2022-07-21 06:04:25,976 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:25,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:25,977 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1447 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1447 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:25,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1447 Valid, 1468 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:25,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:26,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:26,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 393 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 500 transitions. [2022-07-21 06:04:26,017 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 500 transitions. Word has length 77 [2022-07-21 06:04:26,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:26,017 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 500 transitions. [2022-07-21 06:04:26,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:26,017 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 500 transitions. [2022-07-21 06:04:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-07-21 06:04:26,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:26,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:26,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 06:04:26,019 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:26,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:26,019 INFO L85 PathProgramCache]: Analyzing trace with hash 414494927, now seen corresponding path program 1 times [2022-07-21 06:04:26,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:26,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465460001] [2022-07-21 06:04:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:26,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:26,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:26,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:26,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465460001] [2022-07-21 06:04:26,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465460001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:26,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:26,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:26,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459195892] [2022-07-21 06:04:26,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:26,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:26,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:26,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:26,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:26,115 INFO L87 Difference]: Start difference. First operand 394 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:26,843 INFO L93 Difference]: Finished difference Result 820 states and 1092 transitions. [2022-07-21 06:04:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-07-21 06:04:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:26,846 INFO L225 Difference]: With dead ends: 820 [2022-07-21 06:04:26,846 INFO L226 Difference]: Without dead ends: 731 [2022-07-21 06:04:26,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:04:26,847 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 2682 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 1738 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:26,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 1738 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-21 06:04:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 394. [2022-07-21 06:04:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.32010582010582) internal successors, (499), 393 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 499 transitions. [2022-07-21 06:04:26,894 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 499 transitions. Word has length 77 [2022-07-21 06:04:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:26,895 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 499 transitions. [2022-07-21 06:04:26,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 499 transitions. [2022-07-21 06:04:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 06:04:26,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:26,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:26,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 06:04:26,896 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:26,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:26,897 INFO L85 PathProgramCache]: Analyzing trace with hash -464299805, now seen corresponding path program 1 times [2022-07-21 06:04:26,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:26,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180392831] [2022-07-21 06:04:26,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:26,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:26,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:26,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:26,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180392831] [2022-07-21 06:04:26,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180392831] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:26,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:26,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:26,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715334235] [2022-07-21 06:04:26,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:26,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:26,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:26,962 INFO L87 Difference]: Start difference. First operand 394 states and 499 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:27,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:27,625 INFO L93 Difference]: Finished difference Result 780 states and 1025 transitions. [2022-07-21 06:04:27,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:27,625 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 06:04:27,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:27,627 INFO L225 Difference]: With dead ends: 780 [2022-07-21 06:04:27,627 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:27,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:27,628 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 1444 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1444 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:27,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1444 Valid, 1464 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 1132 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:04:27,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:27,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3174603174603174) internal successors, (498), 393 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 498 transitions. [2022-07-21 06:04:27,687 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 498 transitions. Word has length 78 [2022-07-21 06:04:27,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:27,688 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 498 transitions. [2022-07-21 06:04:27,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:27,688 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 498 transitions. [2022-07-21 06:04:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-07-21 06:04:27,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:27,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:27,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 06:04:27,689 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1048519876, now seen corresponding path program 1 times [2022-07-21 06:04:27,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:27,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083489631] [2022-07-21 06:04:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:27,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:27,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:27,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:27,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083489631] [2022-07-21 06:04:27,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083489631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:27,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:27,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:27,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716940251] [2022-07-21 06:04:27,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:27,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:27,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:27,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:27,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:27,762 INFO L87 Difference]: Start difference. First operand 394 states and 498 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:28,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:28,526 INFO L93 Difference]: Finished difference Result 829 states and 1099 transitions. [2022-07-21 06:04:28,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:28,526 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-07-21 06:04:28,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:28,528 INFO L225 Difference]: With dead ends: 829 [2022-07-21 06:04:28,528 INFO L226 Difference]: Without dead ends: 731 [2022-07-21 06:04:28,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:28,529 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2237 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2237 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 1616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:28,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2237 Valid, 2104 Invalid, 1616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:28,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-07-21 06:04:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2022-07-21 06:04:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3181818181818181) internal successors, (493), 389 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 493 transitions. [2022-07-21 06:04:28,572 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 493 transitions. Word has length 78 [2022-07-21 06:04:28,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:28,573 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 493 transitions. [2022-07-21 06:04:28,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 493 transitions. [2022-07-21 06:04:28,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:28,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:28,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 06:04:28,574 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:28,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash -738667670, now seen corresponding path program 1 times [2022-07-21 06:04:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:28,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779640788] [2022-07-21 06:04:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:28,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:28,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:28,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:28,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779640788] [2022-07-21 06:04:28,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779640788] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:28,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:28,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:28,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761603314] [2022-07-21 06:04:28,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:28,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:28,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:28,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:28,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:28,655 INFO L87 Difference]: Start difference. First operand 390 states and 493 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:29,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:29,388 INFO L93 Difference]: Finished difference Result 804 states and 1059 transitions. [2022-07-21 06:04:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:29,389 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:29,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:29,390 INFO L225 Difference]: With dead ends: 804 [2022-07-21 06:04:29,390 INFO L226 Difference]: Without dead ends: 723 [2022-07-21 06:04:29,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:29,391 INFO L413 NwaCegarLoop]: 367 mSDtfsCounter, 2085 mSDsluCounter, 1643 mSDsCounter, 0 mSdLazyCounter, 1388 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2085 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:29,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2085 Valid, 2010 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:29,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-07-21 06:04:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2022-07-21 06:04:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3155080213903743) internal successors, (492), 389 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:29,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 492 transitions. [2022-07-21 06:04:29,448 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 492 transitions. Word has length 79 [2022-07-21 06:04:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:29,449 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 492 transitions. [2022-07-21 06:04:29,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 492 transitions. [2022-07-21 06:04:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:29,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:29,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:29,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 06:04:29,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:29,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:29,450 INFO L85 PathProgramCache]: Analyzing trace with hash 749865809, now seen corresponding path program 1 times [2022-07-21 06:04:29,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:29,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153125448] [2022-07-21 06:04:29,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:29,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:29,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:29,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153125448] [2022-07-21 06:04:29,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153125448] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:29,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:29,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:29,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021427877] [2022-07-21 06:04:29,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:29,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:29,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:29,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:29,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:29,530 INFO L87 Difference]: Start difference. First operand 390 states and 492 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:30,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:30,320 INFO L93 Difference]: Finished difference Result 776 states and 1018 transitions. [2022-07-21 06:04:30,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:30,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:30,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:30,322 INFO L225 Difference]: With dead ends: 776 [2022-07-21 06:04:30,322 INFO L226 Difference]: Without dead ends: 707 [2022-07-21 06:04:30,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:30,323 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2310 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 1922 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:30,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 1922 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:30,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-07-21 06:04:30,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-07-21 06:04:30,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3128342245989304) internal successors, (491), 389 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:30,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 491 transitions. [2022-07-21 06:04:30,370 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 491 transitions. Word has length 79 [2022-07-21 06:04:30,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:30,371 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 491 transitions. [2022-07-21 06:04:30,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:30,371 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 491 transitions. [2022-07-21 06:04:30,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:30,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:30,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:30,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 06:04:30,372 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:30,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:30,373 INFO L85 PathProgramCache]: Analyzing trace with hash 261207811, now seen corresponding path program 1 times [2022-07-21 06:04:30,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:30,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18413618] [2022-07-21 06:04:30,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:30,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:30,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:30,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:30,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18413618] [2022-07-21 06:04:30,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18413618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:30,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:30,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:30,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689903292] [2022-07-21 06:04:30,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:30,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:30,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:30,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:30,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:30,498 INFO L87 Difference]: Start difference. First operand 390 states and 491 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:32,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:32,292 INFO L93 Difference]: Finished difference Result 1359 states and 1859 transitions. [2022-07-21 06:04:32,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:04:32,292 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:32,295 INFO L225 Difference]: With dead ends: 1359 [2022-07-21 06:04:32,295 INFO L226 Difference]: Without dead ends: 1255 [2022-07-21 06:04:32,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:04:32,296 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 3502 mSDsluCounter, 2344 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 323 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3502 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:32,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3502 Valid, 3074 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 06:04:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2022-07-21 06:04:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 394. [2022-07-21 06:04:32,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3095238095238095) internal successors, (495), 393 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 495 transitions. [2022-07-21 06:04:32,357 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 495 transitions. Word has length 79 [2022-07-21 06:04:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:32,357 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 495 transitions. [2022-07-21 06:04:32,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 495 transitions. [2022-07-21 06:04:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:32,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:32,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:32,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 06:04:32,358 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:32,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:32,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1928072588, now seen corresponding path program 1 times [2022-07-21 06:04:32,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:32,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893137795] [2022-07-21 06:04:32,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:32,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:32,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:32,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:32,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893137795] [2022-07-21 06:04:32,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893137795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:32,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:32,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:32,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674034377] [2022-07-21 06:04:32,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:32,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:32,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:32,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:32,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:32,432 INFO L87 Difference]: Start difference. First operand 394 states and 495 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:33,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:33,163 INFO L93 Difference]: Finished difference Result 744 states and 965 transitions. [2022-07-21 06:04:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:33,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:33,165 INFO L225 Difference]: With dead ends: 744 [2022-07-21 06:04:33,165 INFO L226 Difference]: Without dead ends: 727 [2022-07-21 06:04:33,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:33,166 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 2214 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:33,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 1836 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:33,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-21 06:04:33,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-21 06:04:33,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.306878306878307) internal successors, (494), 393 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:33,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 494 transitions. [2022-07-21 06:04:33,218 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 494 transitions. Word has length 79 [2022-07-21 06:04:33,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:33,218 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 494 transitions. [2022-07-21 06:04:33,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:33,218 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 494 transitions. [2022-07-21 06:04:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:33,219 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:33,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:33,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 06:04:33,219 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:33,220 INFO L85 PathProgramCache]: Analyzing trace with hash -439539109, now seen corresponding path program 1 times [2022-07-21 06:04:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:33,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586719631] [2022-07-21 06:04:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:33,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:33,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:33,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:33,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:33,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586719631] [2022-07-21 06:04:33,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586719631] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:33,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:33,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:33,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654114411] [2022-07-21 06:04:33,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:33,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:33,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:33,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:33,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:33,308 INFO L87 Difference]: Start difference. First operand 394 states and 494 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:34,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:34,123 INFO L93 Difference]: Finished difference Result 716 states and 924 transitions. [2022-07-21 06:04:34,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:34,123 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:34,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:34,125 INFO L225 Difference]: With dead ends: 716 [2022-07-21 06:04:34,125 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:34,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:34,126 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2282 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2282 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:34,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2282 Valid, 1971 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1429 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:04:34,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:34,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:34,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3042328042328042) internal successors, (493), 393 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:34,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 493 transitions. [2022-07-21 06:04:34,178 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 493 transitions. Word has length 79 [2022-07-21 06:04:34,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:34,178 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 493 transitions. [2022-07-21 06:04:34,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 493 transitions. [2022-07-21 06:04:34,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:34,179 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:34,179 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:34,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 06:04:34,179 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:34,180 INFO L85 PathProgramCache]: Analyzing trace with hash -845454890, now seen corresponding path program 1 times [2022-07-21 06:04:34,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:34,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51161677] [2022-07-21 06:04:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:34,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:34,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:34,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:34,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:34,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51161677] [2022-07-21 06:04:34,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51161677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:34,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:34,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:34,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462144464] [2022-07-21 06:04:34,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:34,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:34,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:34,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:34,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:34,249 INFO L87 Difference]: Start difference. First operand 394 states and 493 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:35,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:35,004 INFO L93 Difference]: Finished difference Result 716 states and 923 transitions. [2022-07-21 06:04:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:35,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:35,006 INFO L225 Difference]: With dead ends: 716 [2022-07-21 06:04:35,007 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:35,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:35,007 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 2473 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2473 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:35,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2473 Valid, 1708 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:35,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:35,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:35,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3015873015873016) internal successors, (492), 393 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:35,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 492 transitions. [2022-07-21 06:04:35,063 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 492 transitions. Word has length 79 [2022-07-21 06:04:35,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:35,063 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 492 transitions. [2022-07-21 06:04:35,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 492 transitions. [2022-07-21 06:04:35,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:35,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:35,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:35,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 06:04:35,064 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:35,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:35,065 INFO L85 PathProgramCache]: Analyzing trace with hash 88191580, now seen corresponding path program 1 times [2022-07-21 06:04:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815913898] [2022-07-21 06:04:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:35,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:35,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:35,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815913898] [2022-07-21 06:04:35,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815913898] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:35,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:35,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:35,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385606332] [2022-07-21 06:04:35,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:35,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:35,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:35,147 INFO L87 Difference]: Start difference. First operand 394 states and 492 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:35,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:35,960 INFO L93 Difference]: Finished difference Result 777 states and 1014 transitions. [2022-07-21 06:04:35,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:35,960 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:35,962 INFO L225 Difference]: With dead ends: 777 [2022-07-21 06:04:35,962 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:35,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:35,963 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 2272 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:35,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 1974 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:36,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.2989417989417988) internal successors, (491), 393 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:36,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 491 transitions. [2022-07-21 06:04:36,035 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 491 transitions. Word has length 79 [2022-07-21 06:04:36,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:36,035 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 491 transitions. [2022-07-21 06:04:36,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:36,035 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 491 transitions. [2022-07-21 06:04:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:36,036 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:36,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:36,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 06:04:36,036 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash -274145819, now seen corresponding path program 1 times [2022-07-21 06:04:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:36,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163642415] [2022-07-21 06:04:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:36,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:36,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:36,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163642415] [2022-07-21 06:04:36,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163642415] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:36,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:36,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:36,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035100278] [2022-07-21 06:04:36,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:36,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:36,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:36,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:36,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:36,110 INFO L87 Difference]: Start difference. First operand 394 states and 491 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:36,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:36,878 INFO L93 Difference]: Finished difference Result 808 states and 1055 transitions. [2022-07-21 06:04:36,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:36,878 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:36,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:36,880 INFO L225 Difference]: With dead ends: 808 [2022-07-21 06:04:36,880 INFO L226 Difference]: Without dead ends: 727 [2022-07-21 06:04:36,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:36,881 INFO L413 NwaCegarLoop]: 462 mSDtfsCounter, 1769 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:36,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 2047 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-07-21 06:04:36,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-07-21 06:04:36,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.2962962962962963) internal successors, (490), 393 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:36,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 490 transitions. [2022-07-21 06:04:36,939 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 490 transitions. Word has length 79 [2022-07-21 06:04:36,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:36,939 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 490 transitions. [2022-07-21 06:04:36,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:36,939 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 490 transitions. [2022-07-21 06:04:36,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:36,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:36,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:36,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 06:04:36,940 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:36,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:36,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1678498669, now seen corresponding path program 1 times [2022-07-21 06:04:36,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:36,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899296531] [2022-07-21 06:04:36,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:36,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:37,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:37,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899296531] [2022-07-21 06:04:37,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899296531] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:37,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:37,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:37,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251106259] [2022-07-21 06:04:37,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:37,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:37,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:37,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:37,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:37,076 INFO L87 Difference]: Start difference. First operand 394 states and 490 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:38,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:38,673 INFO L93 Difference]: Finished difference Result 1109 states and 1492 transitions. [2022-07-21 06:04:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:04:38,673 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:38,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:38,675 INFO L225 Difference]: With dead ends: 1109 [2022-07-21 06:04:38,675 INFO L226 Difference]: Without dead ends: 1040 [2022-07-21 06:04:38,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:04:38,676 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 4570 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 1798 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 2349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 1798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:38,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 2315 Invalid, 2349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 1798 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:04:38,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2022-07-21 06:04:38,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 398. [2022-07-21 06:04:38,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.293193717277487) internal successors, (494), 397 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:38,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 494 transitions. [2022-07-21 06:04:38,740 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 494 transitions. Word has length 79 [2022-07-21 06:04:38,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:38,741 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 494 transitions. [2022-07-21 06:04:38,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:38,741 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 494 transitions. [2022-07-21 06:04:38,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:38,741 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:38,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:38,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 06:04:38,742 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:38,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:38,742 INFO L85 PathProgramCache]: Analyzing trace with hash 861543357, now seen corresponding path program 1 times [2022-07-21 06:04:38,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:38,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038645226] [2022-07-21 06:04:38,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:38,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:38,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:38,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038645226] [2022-07-21 06:04:38,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038645226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:38,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:38,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:38,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094545350] [2022-07-21 06:04:38,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:38,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:38,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:38,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:38,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:38,817 INFO L87 Difference]: Start difference. First operand 398 states and 494 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:39,654 INFO L93 Difference]: Finished difference Result 777 states and 1011 transitions. [2022-07-21 06:04:39,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:39,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:39,656 INFO L225 Difference]: With dead ends: 777 [2022-07-21 06:04:39,656 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:39,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:39,656 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 2249 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2249 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:39,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2249 Valid, 2006 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:39,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:39,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 398. [2022-07-21 06:04:39,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2905759162303665) internal successors, (493), 397 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:39,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 493 transitions. [2022-07-21 06:04:39,721 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 493 transitions. Word has length 79 [2022-07-21 06:04:39,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:39,721 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 493 transitions. [2022-07-21 06:04:39,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:39,721 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 493 transitions. [2022-07-21 06:04:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:39,722 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:39,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:39,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 06:04:39,722 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:39,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:39,723 INFO L85 PathProgramCache]: Analyzing trace with hash 556086602, now seen corresponding path program 1 times [2022-07-21 06:04:39,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:39,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41004145] [2022-07-21 06:04:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:39,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:39,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:39,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:39,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41004145] [2022-07-21 06:04:39,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41004145] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:39,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:39,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:39,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890756382] [2022-07-21 06:04:39,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:39,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:39,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:39,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:39,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:39,840 INFO L87 Difference]: Start difference. First operand 398 states and 493 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:41,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:41,585 INFO L93 Difference]: Finished difference Result 1223 states and 1655 transitions. [2022-07-21 06:04:41,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:04:41,586 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:41,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:41,589 INFO L225 Difference]: With dead ends: 1223 [2022-07-21 06:04:41,589 INFO L226 Difference]: Without dead ends: 1147 [2022-07-21 06:04:41,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:04:41,590 INFO L413 NwaCegarLoop]: 483 mSDtfsCounter, 3972 mSDsluCounter, 2092 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3972 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 2364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:41,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3972 Valid, 2575 Invalid, 2364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:04:41,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2022-07-21 06:04:41,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 402. [2022-07-21 06:04:41,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2875647668393781) internal successors, (497), 401 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 497 transitions. [2022-07-21 06:04:41,671 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 497 transitions. Word has length 79 [2022-07-21 06:04:41,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:41,671 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 497 transitions. [2022-07-21 06:04:41,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:41,671 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 497 transitions. [2022-07-21 06:04:41,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-07-21 06:04:41,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:41,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:41,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 06:04:41,672 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:41,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:41,673 INFO L85 PathProgramCache]: Analyzing trace with hash -403243016, now seen corresponding path program 1 times [2022-07-21 06:04:41,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:41,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383430947] [2022-07-21 06:04:41,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:41,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:41,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:41,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:41,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383430947] [2022-07-21 06:04:41,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383430947] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:41,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:41,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:41,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317532713] [2022-07-21 06:04:41,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:41,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:41,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:41,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:41,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:41,809 INFO L87 Difference]: Start difference. First operand 402 states and 497 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:43,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:43,392 INFO L93 Difference]: Finished difference Result 1107 states and 1488 transitions. [2022-07-21 06:04:43,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:04:43,393 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-07-21 06:04:43,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:43,395 INFO L225 Difference]: With dead ends: 1107 [2022-07-21 06:04:43,395 INFO L226 Difference]: Without dead ends: 1041 [2022-07-21 06:04:43,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:04:43,396 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 3922 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 1454 mSolverCounterSat, 473 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3922 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 473 IncrementalHoareTripleChecker+Valid, 1454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:43,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3922 Valid, 1867 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [473 Valid, 1454 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:04:43,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2022-07-21 06:04:43,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 406. [2022-07-21 06:04:43,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2846153846153847) internal successors, (501), 405 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 501 transitions. [2022-07-21 06:04:43,473 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 501 transitions. Word has length 79 [2022-07-21 06:04:43,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:43,473 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 501 transitions. [2022-07-21 06:04:43,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:43,474 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 501 transitions. [2022-07-21 06:04:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 06:04:43,474 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:43,474 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:43,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 06:04:43,475 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:43,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:43,475 INFO L85 PathProgramCache]: Analyzing trace with hash -716120998, now seen corresponding path program 1 times [2022-07-21 06:04:43,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:43,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144646468] [2022-07-21 06:04:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:43,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:43,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:43,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144646468] [2022-07-21 06:04:43,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144646468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:43,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:43,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:43,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300673526] [2022-07-21 06:04:43,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:43,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:43,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:43,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:43,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:43,535 INFO L87 Difference]: Start difference. First operand 406 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:44,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:44,382 INFO L93 Difference]: Finished difference Result 851 states and 1107 transitions. [2022-07-21 06:04:44,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:44,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 06:04:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:44,384 INFO L225 Difference]: With dead ends: 851 [2022-07-21 06:04:44,384 INFO L226 Difference]: Without dead ends: 747 [2022-07-21 06:04:44,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:44,385 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1198 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1198 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 1537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:44,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1198 Valid, 2092 Invalid, 1537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1517 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-07-21 06:04:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 402. [2022-07-21 06:04:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2849740932642486) internal successors, (496), 401 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:44,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2022-07-21 06:04:44,464 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 80 [2022-07-21 06:04:44,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:44,464 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2022-07-21 06:04:44,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:44,464 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2022-07-21 06:04:44,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 06:04:44,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:44,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:44,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-21 06:04:44,465 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:44,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:44,465 INFO L85 PathProgramCache]: Analyzing trace with hash 724648618, now seen corresponding path program 1 times [2022-07-21 06:04:44,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:44,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813575063] [2022-07-21 06:04:44,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:44,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:44,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:44,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:44,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813575063] [2022-07-21 06:04:44,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813575063] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:44,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:44,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:44,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082119068] [2022-07-21 06:04:44,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:44,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:44,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:44,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:44,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:44,532 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:45,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:45,324 INFO L93 Difference]: Finished difference Result 780 states and 1011 transitions. [2022-07-21 06:04:45,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:45,324 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 06:04:45,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:45,326 INFO L225 Difference]: With dead ends: 780 [2022-07-21 06:04:45,326 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:45,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:45,327 INFO L413 NwaCegarLoop]: 441 mSDtfsCounter, 2082 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:45,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2082 Valid, 1754 Invalid, 1383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:45,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 398. [2022-07-21 06:04:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2853403141361257) internal successors, (491), 397 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 491 transitions. [2022-07-21 06:04:45,416 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 491 transitions. Word has length 80 [2022-07-21 06:04:45,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:45,416 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 491 transitions. [2022-07-21 06:04:45,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:45,416 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 491 transitions. [2022-07-21 06:04:45,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 06:04:45,417 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:45,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:45,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 06:04:45,417 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:45,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash 141903750, now seen corresponding path program 1 times [2022-07-21 06:04:45,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:45,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860526049] [2022-07-21 06:04:45,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:45,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:45,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:45,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:45,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860526049] [2022-07-21 06:04:45,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860526049] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:45,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:45,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:45,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370013790] [2022-07-21 06:04:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:45,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:45,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:45,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:45,480 INFO L87 Difference]: Start difference. First operand 398 states and 491 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:46,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:46,314 INFO L93 Difference]: Finished difference Result 777 states and 1007 transitions. [2022-07-21 06:04:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 06:04:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:46,316 INFO L225 Difference]: With dead ends: 777 [2022-07-21 06:04:46,316 INFO L226 Difference]: Without dead ends: 711 [2022-07-21 06:04:46,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:46,317 INFO L413 NwaCegarLoop]: 442 mSDtfsCounter, 1848 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:46,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 1754 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:46,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-07-21 06:04:46,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 394. [2022-07-21 06:04:46,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.2857142857142858) internal successors, (486), 393 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:46,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 486 transitions. [2022-07-21 06:04:46,394 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 486 transitions. Word has length 80 [2022-07-21 06:04:46,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:46,394 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 486 transitions. [2022-07-21 06:04:46,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:46,394 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 486 transitions. [2022-07-21 06:04:46,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 06:04:46,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:46,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:46,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 06:04:46,395 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:46,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:46,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1565003779, now seen corresponding path program 1 times [2022-07-21 06:04:46,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:46,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002727166] [2022-07-21 06:04:46,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:46,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:46,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:46,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002727166] [2022-07-21 06:04:46,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002727166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:46,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:46,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:46,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658172631] [2022-07-21 06:04:46,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:46,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:46,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:46,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:46,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:46,478 INFO L87 Difference]: Start difference. First operand 394 states and 486 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:47,342 INFO L93 Difference]: Finished difference Result 775 states and 1004 transitions. [2022-07-21 06:04:47,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:47,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 06:04:47,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:47,346 INFO L225 Difference]: With dead ends: 775 [2022-07-21 06:04:47,347 INFO L226 Difference]: Without dead ends: 710 [2022-07-21 06:04:47,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:47,348 INFO L413 NwaCegarLoop]: 389 mSDtfsCounter, 2226 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:47,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 2023 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1399 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:47,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-21 06:04:47,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 393. [2022-07-21 06:04:47,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.2838196286472148) internal successors, (484), 392 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 484 transitions. [2022-07-21 06:04:47,430 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 484 transitions. Word has length 80 [2022-07-21 06:04:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:47,430 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 484 transitions. [2022-07-21 06:04:47,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 484 transitions. [2022-07-21 06:04:47,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-21 06:04:47,431 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:47,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:47,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-21 06:04:47,431 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:47,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash -213640481, now seen corresponding path program 1 times [2022-07-21 06:04:47,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:47,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962412940] [2022-07-21 06:04:47,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:47,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:47,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:47,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:47,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:47,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962412940] [2022-07-21 06:04:47,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962412940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:47,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:47,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:47,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534058093] [2022-07-21 06:04:47,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:47,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:47,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:47,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:47,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:47,492 INFO L87 Difference]: Start difference. First operand 393 states and 484 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:48,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:48,327 INFO L93 Difference]: Finished difference Result 798 states and 1036 transitions. [2022-07-21 06:04:48,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:48,328 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-07-21 06:04:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:48,329 INFO L225 Difference]: With dead ends: 798 [2022-07-21 06:04:48,329 INFO L226 Difference]: Without dead ends: 722 [2022-07-21 06:04:48,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:48,330 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 1625 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:48,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 2095 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1511 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:48,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2022-07-21 06:04:48,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 389. [2022-07-21 06:04:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 373 states have (on average 1.2841823056300268) internal successors, (479), 388 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 479 transitions. [2022-07-21 06:04:48,420 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 479 transitions. Word has length 80 [2022-07-21 06:04:48,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:48,420 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 479 transitions. [2022-07-21 06:04:48,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:48,420 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 479 transitions. [2022-07-21 06:04:48,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 06:04:48,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:48,421 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:48,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-21 06:04:48,421 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:48,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:48,422 INFO L85 PathProgramCache]: Analyzing trace with hash 484129246, now seen corresponding path program 1 times [2022-07-21 06:04:48,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:48,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486865886] [2022-07-21 06:04:48,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:48,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:48,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486865886] [2022-07-21 06:04:48,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486865886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:48,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:48,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:04:48,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802965644] [2022-07-21 06:04:48,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:48,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:04:48,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:48,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:04:48,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:04:48,668 INFO L87 Difference]: Start difference. First operand 389 states and 479 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:49,964 INFO L93 Difference]: Finished difference Result 913 states and 1127 transitions. [2022-07-21 06:04:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:49,964 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 06:04:49,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:49,966 INFO L225 Difference]: With dead ends: 913 [2022-07-21 06:04:49,966 INFO L226 Difference]: Without dead ends: 845 [2022-07-21 06:04:49,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-07-21 06:04:49,967 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2898 mSDsluCounter, 3441 mSDsCounter, 0 mSdLazyCounter, 1379 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2898 SdHoareTripleChecker+Valid, 4034 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:49,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2898 Valid, 4034 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1379 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:04:49,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2022-07-21 06:04:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 385. [2022-07-21 06:04:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 370 states have (on average 1.281081081081081) internal successors, (474), 384 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:50,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 474 transitions. [2022-07-21 06:04:50,057 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 474 transitions. Word has length 81 [2022-07-21 06:04:50,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:50,057 INFO L495 AbstractCegarLoop]: Abstraction has 385 states and 474 transitions. [2022-07-21 06:04:50,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:50,057 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 474 transitions. [2022-07-21 06:04:50,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 06:04:50,058 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:50,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:50,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-21 06:04:50,058 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:50,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:50,058 INFO L85 PathProgramCache]: Analyzing trace with hash 852624389, now seen corresponding path program 1 times [2022-07-21 06:04:50,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:50,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489651336] [2022-07-21 06:04:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:50,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:50,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489651336] [2022-07-21 06:04:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489651336] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:50,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:50,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:04:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091972811] [2022-07-21 06:04:50,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:50,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:50,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:50,247 INFO L87 Difference]: Start difference. First operand 385 states and 474 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:51,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:51,226 INFO L93 Difference]: Finished difference Result 951 states and 1260 transitions. [2022-07-21 06:04:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:04:51,226 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 06:04:51,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:51,227 INFO L225 Difference]: With dead ends: 951 [2022-07-21 06:04:51,227 INFO L226 Difference]: Without dead ends: 854 [2022-07-21 06:04:51,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:04:51,228 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 2160 mSDsluCounter, 4078 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 5009 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:51,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 5009 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 684 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:04:51,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2022-07-21 06:04:51,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 352. [2022-07-21 06:04:51,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 340 states have (on average 1.276470588235294) internal successors, (434), 351 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:51,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 434 transitions. [2022-07-21 06:04:51,322 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 434 transitions. Word has length 81 [2022-07-21 06:04:51,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:51,322 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 434 transitions. [2022-07-21 06:04:51,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:51,323 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 434 transitions. [2022-07-21 06:04:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 06:04:51,323 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:51,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:51,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-21 06:04:51,323 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:51,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:51,324 INFO L85 PathProgramCache]: Analyzing trace with hash 295761583, now seen corresponding path program 1 times [2022-07-21 06:04:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:51,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557157330] [2022-07-21 06:04:51,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:51,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:51,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:51,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557157330] [2022-07-21 06:04:51,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557157330] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:51,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:51,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-07-21 06:04:51,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117107559] [2022-07-21 06:04:51,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:51,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-07-21 06:04:51,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:51,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-07-21 06:04:51,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-07-21 06:04:51,751 INFO L87 Difference]: Start difference. First operand 352 states and 434 transitions. Second operand has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:53,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:53,502 INFO L93 Difference]: Finished difference Result 866 states and 1117 transitions. [2022-07-21 06:04:53,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-21 06:04:53,502 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 06:04:53,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:53,503 INFO L225 Difference]: With dead ends: 866 [2022-07-21 06:04:53,503 INFO L226 Difference]: Without dead ends: 743 [2022-07-21 06:04:53,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=253, Invalid=1007, Unknown=0, NotChecked=0, Total=1260 [2022-07-21 06:04:53,504 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 2618 mSDsluCounter, 7316 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 8059 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:53,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2618 Valid, 8059 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1797 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:04:53,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-07-21 06:04:53,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 362. [2022-07-21 06:04:53,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 350 states have (on average 1.2742857142857142) internal successors, (446), 361 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 446 transitions. [2022-07-21 06:04:53,605 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 446 transitions. Word has length 81 [2022-07-21 06:04:53,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:53,605 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 446 transitions. [2022-07-21 06:04:53,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.5) internal successors, (81), 18 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:53,605 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 446 transitions. [2022-07-21 06:04:53,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 06:04:53,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:53,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:53,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-21 06:04:53,606 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:53,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:53,606 INFO L85 PathProgramCache]: Analyzing trace with hash 487027968, now seen corresponding path program 1 times [2022-07-21 06:04:53,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:53,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105347425] [2022-07-21 06:04:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:53,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:53,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:53,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:53,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:53,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105347425] [2022-07-21 06:04:53,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105347425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:53,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:53,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:04:53,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347826466] [2022-07-21 06:04:53,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:53,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:04:53,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:53,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:04:53,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:04:53,816 INFO L87 Difference]: Start difference. First operand 362 states and 446 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:55,011 INFO L93 Difference]: Finished difference Result 849 states and 1056 transitions. [2022-07-21 06:04:55,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:04:55,012 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 06:04:55,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:55,013 INFO L225 Difference]: With dead ends: 849 [2022-07-21 06:04:55,013 INFO L226 Difference]: Without dead ends: 781 [2022-07-21 06:04:55,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:04:55,014 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 2339 mSDsluCounter, 3064 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:55,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 3592 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:04:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2022-07-21 06:04:55,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 358. [2022-07-21 06:04:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 357 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:55,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 441 transitions. [2022-07-21 06:04:55,122 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 441 transitions. Word has length 81 [2022-07-21 06:04:55,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:55,122 INFO L495 AbstractCegarLoop]: Abstraction has 358 states and 441 transitions. [2022-07-21 06:04:55,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:55,122 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 441 transitions. [2022-07-21 06:04:55,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-21 06:04:55,123 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:55,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:55,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-21 06:04:55,123 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:55,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:55,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1444511641, now seen corresponding path program 1 times [2022-07-21 06:04:55,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:55,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206495732] [2022-07-21 06:04:55,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:55,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:55,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:55,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206495732] [2022-07-21 06:04:55,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206495732] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:55,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:55,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:04:55,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345017278] [2022-07-21 06:04:55,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:55,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 06:04:55,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 06:04:55,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:04:55,285 INFO L87 Difference]: Start difference. First operand 358 states and 441 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:56,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:56,144 INFO L93 Difference]: Finished difference Result 887 states and 1160 transitions. [2022-07-21 06:04:56,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-21 06:04:56,144 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-07-21 06:04:56,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:56,146 INFO L225 Difference]: With dead ends: 887 [2022-07-21 06:04:56,146 INFO L226 Difference]: Without dead ends: 710 [2022-07-21 06:04:56,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:04:56,147 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 3058 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3058 SdHoareTripleChecker+Valid, 1480 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:56,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3058 Valid, 1480 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:04:56,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2022-07-21 06:04:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 245. [2022-07-21 06:04:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 238 states have (on average 1.2563025210084033) internal successors, (299), 244 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 299 transitions. [2022-07-21 06:04:56,239 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 299 transitions. Word has length 81 [2022-07-21 06:04:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:56,239 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 299 transitions. [2022-07-21 06:04:56,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 299 transitions. [2022-07-21 06:04:56,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 06:04:56,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:56,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:56,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-21 06:04:56,240 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:56,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:56,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2090211926, now seen corresponding path program 1 times [2022-07-21 06:04:56,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:56,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006042352] [2022-07-21 06:04:56,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:56,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:56,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:56,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006042352] [2022-07-21 06:04:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006042352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:56,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751986619] [2022-07-21 06:04:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:56,310 INFO L87 Difference]: Start difference. First operand 245 states and 299 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:57,129 INFO L93 Difference]: Finished difference Result 595 states and 785 transitions. [2022-07-21 06:04:57,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:04:57,130 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-21 06:04:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:57,131 INFO L225 Difference]: With dead ends: 595 [2022-07-21 06:04:57,131 INFO L226 Difference]: Without dead ends: 513 [2022-07-21 06:04:57,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:04:57,131 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 1130 mSDsluCounter, 1189 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 1074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:57,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 1496 Invalid, 1074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:04:57,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-21 06:04:57,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 245. [2022-07-21 06:04:57,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 238 states have (on average 1.2521008403361344) internal successors, (298), 244 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 298 transitions. [2022-07-21 06:04:57,220 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 298 transitions. Word has length 82 [2022-07-21 06:04:57,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:57,220 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 298 transitions. [2022-07-21 06:04:57,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,220 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 298 transitions. [2022-07-21 06:04:57,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 06:04:57,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:57,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:57,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-21 06:04:57,221 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:57,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:57,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1292332739, now seen corresponding path program 1 times [2022-07-21 06:04:57,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:57,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690769513] [2022-07-21 06:04:57,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:57,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:57,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:57,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:57,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690769513] [2022-07-21 06:04:57,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690769513] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:57,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:57,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:04:57,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913794251] [2022-07-21 06:04:57,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:57,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:04:57,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:04:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:04:57,309 INFO L87 Difference]: Start difference. First operand 245 states and 298 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:57,817 INFO L93 Difference]: Finished difference Result 368 states and 455 transitions. [2022-07-21 06:04:57,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:04:57,818 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-21 06:04:57,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:57,818 INFO L225 Difference]: With dead ends: 368 [2022-07-21 06:04:57,818 INFO L226 Difference]: Without dead ends: 361 [2022-07-21 06:04:57,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-21 06:04:57,819 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 1219 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1219 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:57,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1219 Valid, 1018 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:04:57,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-07-21 06:04:57,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 245. [2022-07-21 06:04:57,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 238 states have (on average 1.2478991596638656) internal successors, (297), 244 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 297 transitions. [2022-07-21 06:04:57,904 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 297 transitions. Word has length 82 [2022-07-21 06:04:57,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:57,904 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 297 transitions. [2022-07-21 06:04:57,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:57,904 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 297 transitions. [2022-07-21 06:04:57,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 06:04:57,905 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:57,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:57,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-21 06:04:57,905 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:57,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:57,906 INFO L85 PathProgramCache]: Analyzing trace with hash 9426797, now seen corresponding path program 1 times [2022-07-21 06:04:57,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:57,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180728931] [2022-07-21 06:04:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:57,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:58,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:58,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180728931] [2022-07-21 06:04:58,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180728931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:58,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:58,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:04:58,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436702826] [2022-07-21 06:04:58,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:58,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:04:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:58,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:04:58,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:04:58,144 INFO L87 Difference]: Start difference. First operand 245 states and 297 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:59,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:04:59,236 INFO L93 Difference]: Finished difference Result 556 states and 698 transitions. [2022-07-21 06:04:59,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:04:59,236 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-21 06:04:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:04:59,237 INFO L225 Difference]: With dead ends: 556 [2022-07-21 06:04:59,237 INFO L226 Difference]: Without dead ends: 552 [2022-07-21 06:04:59,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:04:59,243 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1617 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:04:59,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1617 Valid, 2129 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:04:59,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2022-07-21 06:04:59,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 241. [2022-07-21 06:04:59,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 235 states have (on average 1.2468085106382978) internal successors, (293), 240 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 293 transitions. [2022-07-21 06:04:59,340 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 293 transitions. Word has length 82 [2022-07-21 06:04:59,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:04:59,341 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 293 transitions. [2022-07-21 06:04:59,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:04:59,341 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 293 transitions. [2022-07-21 06:04:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-07-21 06:04:59,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:04:59,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:04:59,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-21 06:04:59,342 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:04:59,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:04:59,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1017799404, now seen corresponding path program 1 times [2022-07-21 06:04:59,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:04:59,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650179507] [2022-07-21 06:04:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:04:59,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:04:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:04:59,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:04:59,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:04:59,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650179507] [2022-07-21 06:04:59,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650179507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:04:59,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:04:59,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:04:59,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048421276] [2022-07-21 06:04:59,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:04:59,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:04:59,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:04:59,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:04:59,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:04:59,571 INFO L87 Difference]: Start difference. First operand 241 states and 293 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:00,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:00,445 INFO L93 Difference]: Finished difference Result 626 states and 817 transitions. [2022-07-21 06:05:00,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:05:00,446 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-07-21 06:05:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:00,447 INFO L225 Difference]: With dead ends: 626 [2022-07-21 06:05:00,447 INFO L226 Difference]: Without dead ends: 499 [2022-07-21 06:05:00,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:05:00,448 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 1089 mSDsluCounter, 2816 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:00,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 3399 Invalid, 500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:05:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2022-07-21 06:05:00,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 172. [2022-07-21 06:05:00,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 169 states have (on average 1.242603550295858) internal successors, (210), 171 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:00,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 210 transitions. [2022-07-21 06:05:00,522 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 210 transitions. Word has length 82 [2022-07-21 06:05:00,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:00,523 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 210 transitions. [2022-07-21 06:05:00,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:00,523 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 210 transitions. [2022-07-21 06:05:00,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 06:05:00,523 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:00,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:00,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-21 06:05:00,523 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash 31269841, now seen corresponding path program 1 times [2022-07-21 06:05:00,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:00,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141769284] [2022-07-21 06:05:00,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:00,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:00,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:00,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:00,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141769284] [2022-07-21 06:05:00,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141769284] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:00,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:00,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:05:00,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655903875] [2022-07-21 06:05:00,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:00,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:05:00,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:05:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:05:00,732 INFO L87 Difference]: Start difference. First operand 172 states and 210 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:01,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:01,949 INFO L93 Difference]: Finished difference Result 667 states and 924 transitions. [2022-07-21 06:05:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:05:01,950 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-21 06:05:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:01,951 INFO L225 Difference]: With dead ends: 667 [2022-07-21 06:05:01,951 INFO L226 Difference]: Without dead ends: 661 [2022-07-21 06:05:01,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:05:01,951 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1413 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1413 SdHoareTripleChecker+Valid, 3498 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:01,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1413 Valid, 3498 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:05:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2022-07-21 06:05:02,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 166. [2022-07-21 06:05:02,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.2439024390243902) internal successors, (204), 165 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:02,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 204 transitions. [2022-07-21 06:05:02,029 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 204 transitions. Word has length 84 [2022-07-21 06:05:02,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:02,030 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 204 transitions. [2022-07-21 06:05:02,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:02,030 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 204 transitions. [2022-07-21 06:05:02,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 06:05:02,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:02,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:02,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-21 06:05:02,031 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:02,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:02,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1365227640, now seen corresponding path program 1 times [2022-07-21 06:05:02,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:02,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445357910] [2022-07-21 06:05:02,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:02,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:02,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:02,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445357910] [2022-07-21 06:05:02,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445357910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:02,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:02,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-07-21 06:05:02,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713676244] [2022-07-21 06:05:02,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:02,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 06:05:02,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:02,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 06:05:02,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=577, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:05:02,579 INFO L87 Difference]: Start difference. First operand 166 states and 204 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:06,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:06,067 INFO L93 Difference]: Finished difference Result 666 states and 877 transitions. [2022-07-21 06:05:06,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 06:05:06,067 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-07-21 06:05:06,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:06,068 INFO L225 Difference]: With dead ends: 666 [2022-07-21 06:05:06,068 INFO L226 Difference]: Without dead ends: 658 [2022-07-21 06:05:06,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=369, Invalid=1887, Unknown=0, NotChecked=0, Total=2256 [2022-07-21 06:05:06,069 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 1587 mSDsluCounter, 8202 mSDsCounter, 0 mSdLazyCounter, 4485 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1587 SdHoareTripleChecker+Valid, 8785 SdHoareTripleChecker+Invalid, 4550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:06,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1587 Valid, 8785 Invalid, 4550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4485 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 06:05:06,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-07-21 06:05:06,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 185. [2022-07-21 06:05:06,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 183 states have (on average 1.2404371584699454) internal successors, (227), 184 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:06,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 227 transitions. [2022-07-21 06:05:06,160 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 227 transitions. Word has length 84 [2022-07-21 06:05:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:06,160 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 227 transitions. [2022-07-21 06:05:06,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 227 transitions. [2022-07-21 06:05:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-21 06:05:06,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:06,161 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:06,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-21 06:05:06,161 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:06,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:06,161 INFO L85 PathProgramCache]: Analyzing trace with hash 601058947, now seen corresponding path program 1 times [2022-07-21 06:05:06,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:06,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179902913] [2022-07-21 06:05:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:06,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:06,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:06,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179902913] [2022-07-21 06:05:06,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179902913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:06,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:06,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:05:06,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075257381] [2022-07-21 06:05:06,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:06,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:06,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:06,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:06,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:06,365 INFO L87 Difference]: Start difference. First operand 185 states and 227 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:07,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:07,179 INFO L93 Difference]: Finished difference Result 422 states and 565 transitions. [2022-07-21 06:05:07,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:05:07,180 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-07-21 06:05:07,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:07,181 INFO L225 Difference]: With dead ends: 422 [2022-07-21 06:05:07,181 INFO L226 Difference]: Without dead ends: 407 [2022-07-21 06:05:07,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:05:07,184 INFO L413 NwaCegarLoop]: 465 mSDtfsCounter, 936 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 936 SdHoareTripleChecker+Valid, 2287 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:07,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [936 Valid, 2287 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:05:07,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-07-21 06:05:07,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 154. [2022-07-21 06:05:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.2483660130718954) internal successors, (191), 153 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 191 transitions. [2022-07-21 06:05:07,272 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 191 transitions. Word has length 85 [2022-07-21 06:05:07,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:07,272 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 191 transitions. [2022-07-21 06:05:07,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:07,273 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 191 transitions. [2022-07-21 06:05:07,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-07-21 06:05:07,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:07,273 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:07,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-21 06:05:07,274 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:07,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:07,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1569723451, now seen corresponding path program 1 times [2022-07-21 06:05:07,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:07,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968238424] [2022-07-21 06:05:07,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:07,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:07,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:07,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968238424] [2022-07-21 06:05:07,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968238424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:07,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:07,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:07,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403568008] [2022-07-21 06:05:07,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:07,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:07,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:07,327 INFO L87 Difference]: Start difference. First operand 154 states and 191 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:08,102 INFO L93 Difference]: Finished difference Result 794 states and 1141 transitions. [2022-07-21 06:05:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 06:05:08,102 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-07-21 06:05:08,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:08,103 INFO L225 Difference]: With dead ends: 794 [2022-07-21 06:05:08,103 INFO L226 Difference]: Without dead ends: 730 [2022-07-21 06:05:08,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-07-21 06:05:08,104 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1784 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:08,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1784 Valid, 1142 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:05:08,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2022-07-21 06:05:08,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 216. [2022-07-21 06:05:08,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.3162790697674418) internal successors, (283), 215 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:08,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2022-07-21 06:05:08,260 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 283 transitions. Word has length 111 [2022-07-21 06:05:08,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:08,260 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 283 transitions. [2022-07-21 06:05:08,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:08,261 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 283 transitions. [2022-07-21 06:05:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:08,261 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:08,261 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:08,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-21 06:05:08,262 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:08,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:08,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1004312690, now seen corresponding path program 1 times [2022-07-21 06:05:08,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:08,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713458909] [2022-07-21 06:05:08,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:08,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:08,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:08,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713458909] [2022-07-21 06:05:08,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713458909] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:08,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:08,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:08,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336259221] [2022-07-21 06:05:08,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:08,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:08,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:08,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:08,332 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:09,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:09,160 INFO L93 Difference]: Finished difference Result 910 states and 1311 transitions. [2022-07-21 06:05:09,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:05:09,161 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:09,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:09,162 INFO L225 Difference]: With dead ends: 910 [2022-07-21 06:05:09,162 INFO L226 Difference]: Without dead ends: 784 [2022-07-21 06:05:09,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:05:09,163 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1196 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:09,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 884 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:09,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2022-07-21 06:05:09,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 340. [2022-07-21 06:05:09,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 339 states have (on average 1.3805309734513274) internal successors, (468), 339 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 468 transitions. [2022-07-21 06:05:09,462 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 468 transitions. Word has length 113 [2022-07-21 06:05:09,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:09,463 INFO L495 AbstractCegarLoop]: Abstraction has 340 states and 468 transitions. [2022-07-21 06:05:09,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:09,463 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 468 transitions. [2022-07-21 06:05:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:09,463 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:09,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:09,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-21 06:05:09,464 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1515443221, now seen corresponding path program 1 times [2022-07-21 06:05:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:09,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115137868] [2022-07-21 06:05:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:09,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:09,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:09,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115137868] [2022-07-21 06:05:09,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115137868] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:09,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:09,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:05:09,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115919277] [2022-07-21 06:05:09,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:09,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:05:09,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:09,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:05:09,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:09,502 INFO L87 Difference]: Start difference. First operand 340 states and 468 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:10,081 INFO L93 Difference]: Finished difference Result 814 states and 1166 transitions. [2022-07-21 06:05:10,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:05:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:10,083 INFO L225 Difference]: With dead ends: 814 [2022-07-21 06:05:10,083 INFO L226 Difference]: Without dead ends: 564 [2022-07-21 06:05:10,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:10,084 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 110 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:10,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 305 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-07-21 06:05:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2022-07-21 06:05:10,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 1.398563734290844) internal successors, (779), 557 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:10,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 779 transitions. [2022-07-21 06:05:10,633 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 779 transitions. Word has length 113 [2022-07-21 06:05:10,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:10,633 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 779 transitions. [2022-07-21 06:05:10,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:10,633 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 779 transitions. [2022-07-21 06:05:10,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:10,634 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:10,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:10,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-21 06:05:10,634 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:10,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1448949709, now seen corresponding path program 1 times [2022-07-21 06:05:10,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:10,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238548264] [2022-07-21 06:05:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:10,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:10,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:10,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238548264] [2022-07-21 06:05:10,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238548264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:10,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:10,734 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824234161] [2022-07-21 06:05:10,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:10,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:10,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:10,736 INFO L87 Difference]: Start difference. First operand 558 states and 779 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:11,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:11,400 INFO L93 Difference]: Finished difference Result 1028 states and 1463 transitions. [2022-07-21 06:05:11,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:05:11,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:11,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:11,401 INFO L225 Difference]: With dead ends: 1028 [2022-07-21 06:05:11,401 INFO L226 Difference]: Without dead ends: 560 [2022-07-21 06:05:11,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-07-21 06:05:11,402 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 526 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:11,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [526 Valid, 551 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:11,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2022-07-21 06:05:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 558. [2022-07-21 06:05:11,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 1.3949730700179532) internal successors, (777), 557 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 777 transitions. [2022-07-21 06:05:11,972 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 777 transitions. Word has length 113 [2022-07-21 06:05:11,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:11,972 INFO L495 AbstractCegarLoop]: Abstraction has 558 states and 777 transitions. [2022-07-21 06:05:11,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:11,972 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 777 transitions. [2022-07-21 06:05:11,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:11,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:11,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:11,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-21 06:05:11,973 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:11,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:11,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1415505294, now seen corresponding path program 1 times [2022-07-21 06:05:11,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:11,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313823672] [2022-07-21 06:05:11,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:11,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:12,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:12,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:12,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313823672] [2022-07-21 06:05:12,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313823672] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:12,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:12,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:12,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381935032] [2022-07-21 06:05:12,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:12,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:12,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:12,037 INFO L87 Difference]: Start difference. First operand 558 states and 777 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:13,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:13,836 INFO L93 Difference]: Finished difference Result 1852 states and 2657 transitions. [2022-07-21 06:05:13,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:05:13,836 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:13,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:13,839 INFO L225 Difference]: With dead ends: 1852 [2022-07-21 06:05:13,839 INFO L226 Difference]: Without dead ends: 1617 [2022-07-21 06:05:13,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:05:13,840 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1054 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:13,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 975 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:05:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-07-21 06:05:14,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 908. [2022-07-21 06:05:14,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 907 states have (on average 1.4167585446527011) internal successors, (1285), 907 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:14,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1285 transitions. [2022-07-21 06:05:14,835 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1285 transitions. Word has length 113 [2022-07-21 06:05:14,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:14,835 INFO L495 AbstractCegarLoop]: Abstraction has 908 states and 1285 transitions. [2022-07-21 06:05:14,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:14,835 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1285 transitions. [2022-07-21 06:05:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:14,836 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:14,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:14,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-21 06:05:14,836 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:14,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:14,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1051419534, now seen corresponding path program 1 times [2022-07-21 06:05:14,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:14,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95658276] [2022-07-21 06:05:14,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:14,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:14,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:14,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:14,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95658276] [2022-07-21 06:05:14,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95658276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:14,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:14,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:14,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131764927] [2022-07-21 06:05:14,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:14,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:14,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:14,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:14,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:14,930 INFO L87 Difference]: Start difference. First operand 908 states and 1285 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:17,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:17,066 INFO L93 Difference]: Finished difference Result 2085 states and 2996 transitions. [2022-07-21 06:05:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:05:17,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:17,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:17,069 INFO L225 Difference]: With dead ends: 2085 [2022-07-21 06:05:17,069 INFO L226 Difference]: Without dead ends: 1850 [2022-07-21 06:05:17,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:05:17,070 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 1070 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:17,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 996 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:17,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2022-07-21 06:05:18,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1141. [2022-07-21 06:05:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.424561403508772) internal successors, (1624), 1140 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1624 transitions. [2022-07-21 06:05:18,324 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1624 transitions. Word has length 113 [2022-07-21 06:05:18,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:18,324 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 1624 transitions. [2022-07-21 06:05:18,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:18,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1624 transitions. [2022-07-21 06:05:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-07-21 06:05:18,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:18,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:18,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-21 06:05:18,326 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:18,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -310960526, now seen corresponding path program 1 times [2022-07-21 06:05:18,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:18,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840351486] [2022-07-21 06:05:18,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:18,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:18,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840351486] [2022-07-21 06:05:18,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840351486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:18,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:18,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:18,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793742782] [2022-07-21 06:05:18,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:18,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:05:18,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:18,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:05:18,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:18,400 INFO L87 Difference]: Start difference. First operand 1141 states and 1624 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:20,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:20,867 INFO L93 Difference]: Finished difference Result 2318 states and 3335 transitions. [2022-07-21 06:05:20,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:05:20,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-07-21 06:05:20,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:20,871 INFO L225 Difference]: With dead ends: 2318 [2022-07-21 06:05:20,871 INFO L226 Difference]: Without dead ends: 2083 [2022-07-21 06:05:20,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:05:20,871 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1172 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:20,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1172 Valid, 1019 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:05:20,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2022-07-21 06:05:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1374. [2022-07-21 06:05:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 1.4297159504734158) internal successors, (1963), 1373 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1963 transitions. [2022-07-21 06:05:22,454 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1963 transitions. Word has length 113 [2022-07-21 06:05:22,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:22,454 INFO L495 AbstractCegarLoop]: Abstraction has 1374 states and 1963 transitions. [2022-07-21 06:05:22,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:22,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1963 transitions. [2022-07-21 06:05:22,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 06:05:22,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:22,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:22,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-21 06:05:22,455 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:22,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:22,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1879024262, now seen corresponding path program 1 times [2022-07-21 06:05:22,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:22,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591177668] [2022-07-21 06:05:22,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:22,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:22,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591177668] [2022-07-21 06:05:22,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591177668] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:22,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:22,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:05:22,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712518779] [2022-07-21 06:05:22,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:22,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:05:22,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:05:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:22,495 INFO L87 Difference]: Start difference. First operand 1374 states and 1963 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:25,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:25,463 INFO L93 Difference]: Finished difference Result 3854 states and 5543 transitions. [2022-07-21 06:05:25,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:05:25,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-07-21 06:05:25,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:25,468 INFO L225 Difference]: With dead ends: 3854 [2022-07-21 06:05:25,468 INFO L226 Difference]: Without dead ends: 2570 [2022-07-21 06:05:25,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:25,470 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 89 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:25,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:25,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2022-07-21 06:05:28,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2480. [2022-07-21 06:05:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2479 states have (on average 1.4292053247277128) internal successors, (3543), 2479 states have internal predecessors, (3543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3543 transitions. [2022-07-21 06:05:28,381 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3543 transitions. Word has length 114 [2022-07-21 06:05:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:28,381 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 3543 transitions. [2022-07-21 06:05:28,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3543 transitions. [2022-07-21 06:05:28,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 06:05:28,382 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:28,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:28,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-21 06:05:28,383 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:28,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:28,383 INFO L85 PathProgramCache]: Analyzing trace with hash -658426381, now seen corresponding path program 1 times [2022-07-21 06:05:28,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:28,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917180946] [2022-07-21 06:05:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:28,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:28,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:28,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:28,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917180946] [2022-07-21 06:05:28,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917180946] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:28,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:28,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:05:28,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539390415] [2022-07-21 06:05:28,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:28,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:05:28,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:28,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:05:28,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:28,420 INFO L87 Difference]: Start difference. First operand 2480 states and 3543 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:33,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:33,934 INFO L93 Difference]: Finished difference Result 7084 states and 10129 transitions. [2022-07-21 06:05:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:05:33,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-07-21 06:05:33,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:33,943 INFO L225 Difference]: With dead ends: 7084 [2022-07-21 06:05:33,943 INFO L226 Difference]: Without dead ends: 4694 [2022-07-21 06:05:33,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:33,947 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:33,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:33,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2022-07-21 06:05:39,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4516. [2022-07-21 06:05:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 1.4212624584717608) internal successors, (6417), 4515 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:39,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6417 transitions. [2022-07-21 06:05:39,130 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6417 transitions. Word has length 115 [2022-07-21 06:05:39,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:39,130 INFO L495 AbstractCegarLoop]: Abstraction has 4516 states and 6417 transitions. [2022-07-21 06:05:39,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:39,130 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6417 transitions. [2022-07-21 06:05:39,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 06:05:39,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:39,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:39,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-21 06:05:39,131 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:39,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:39,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1836152402, now seen corresponding path program 1 times [2022-07-21 06:05:39,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:39,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406081345] [2022-07-21 06:05:39,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:39,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:39,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:39,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:39,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406081345] [2022-07-21 06:05:39,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406081345] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:39,162 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:39,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:05:39,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368912037] [2022-07-21 06:05:39,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:39,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:05:39,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:39,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:05:39,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:39,164 INFO L87 Difference]: Start difference. First operand 4516 states and 6417 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:49,206 INFO L93 Difference]: Finished difference Result 13016 states and 18443 transitions. [2022-07-21 06:05:49,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:05:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-07-21 06:05:49,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:49,217 INFO L225 Difference]: With dead ends: 13016 [2022-07-21 06:05:49,217 INFO L226 Difference]: Without dead ends: 8590 [2022-07-21 06:05:49,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:49,222 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 75 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:49,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:05:49,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2022-07-21 06:05:58,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8236. [2022-07-21 06:05:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 8235 states have (on average 1.4077717061323618) internal successors, (11593), 8235 states have internal predecessors, (11593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11593 transitions. [2022-07-21 06:05:58,815 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11593 transitions. Word has length 116 [2022-07-21 06:05:58,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:58,816 INFO L495 AbstractCegarLoop]: Abstraction has 8236 states and 11593 transitions. [2022-07-21 06:05:58,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11593 transitions. [2022-07-21 06:05:58,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 06:05:58,816 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:58,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:58,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-21 06:05:58,816 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:05:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1618075135, now seen corresponding path program 1 times [2022-07-21 06:05:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:58,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002788122] [2022-07-21 06:05:58,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:58,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:58,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:58,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:58,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002788122] [2022-07-21 06:05:58,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002788122] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:58,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:58,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:05:58,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754407564] [2022-07-21 06:05:58,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:58,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:05:58,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:58,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:05:58,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:05:58,848 INFO L87 Difference]: Start difference. First operand 8236 states and 11593 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:17,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:17,167 INFO L93 Difference]: Finished difference Result 23824 states and 33355 transitions. [2022-07-21 06:06:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:06:17,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-07-21 06:06:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:17,185 INFO L225 Difference]: With dead ends: 23824 [2022-07-21 06:06:17,185 INFO L226 Difference]: Without dead ends: 15678 [2022-07-21 06:06:17,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:06:17,192 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 65 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:17,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 405 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:06:17,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15678 states. [2022-07-21 06:06:34,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15678 to 14972. [2022-07-21 06:06:34,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14972 states, 14971 states have (on average 1.3894195444526083) internal successors, (20801), 14971 states have internal predecessors, (20801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14972 states to 14972 states and 20801 transitions. [2022-07-21 06:06:34,952 INFO L78 Accepts]: Start accepts. Automaton has 14972 states and 20801 transitions. Word has length 117 [2022-07-21 06:06:34,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:34,953 INFO L495 AbstractCegarLoop]: Abstraction has 14972 states and 20801 transitions. [2022-07-21 06:06:34,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 14972 states and 20801 transitions. [2022-07-21 06:06:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 06:06:34,953 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:34,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:34,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-21 06:06:34,954 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:06:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:34,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1304740322, now seen corresponding path program 1 times [2022-07-21 06:06:34,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:34,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334762282] [2022-07-21 06:06:34,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:34,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:35,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:35,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:35,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334762282] [2022-07-21 06:06:35,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334762282] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:35,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:35,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 06:06:35,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495437603] [2022-07-21 06:06:35,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:35,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 06:06:35,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 06:06:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 06:06:35,005 INFO L87 Difference]: Start difference. First operand 14972 states and 20801 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:06,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:06,967 INFO L93 Difference]: Finished difference Result 26382 states and 36426 transitions. [2022-07-21 06:07:06,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 06:07:06,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-21 06:07:06,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:06,998 INFO L225 Difference]: With dead ends: 26382 [2022-07-21 06:07:06,998 INFO L226 Difference]: Without dead ends: 26380 [2022-07-21 06:07:07,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:07,004 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 308 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:07,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1008 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:07:07,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26380 states. [2022-07-21 06:07:25,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26380 to 15452. [2022-07-21 06:07:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 15451 states have (on average 1.3711086661057537) internal successors, (21185), 15451 states have internal predecessors, (21185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 21185 transitions. [2022-07-21 06:07:25,677 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 21185 transitions. Word has length 118 [2022-07-21 06:07:25,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:25,677 INFO L495 AbstractCegarLoop]: Abstraction has 15452 states and 21185 transitions. [2022-07-21 06:07:25,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:25,677 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 21185 transitions. [2022-07-21 06:07:25,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 06:07:25,678 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:25,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:07:25,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-21 06:07:25,678 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:07:25,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:25,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1757610562, now seen corresponding path program 1 times [2022-07-21 06:07:25,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:25,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836215056] [2022-07-21 06:07:25,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:25,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:25,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:25,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:25,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836215056] [2022-07-21 06:07:25,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836215056] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:25,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:25,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:07:25,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158023881] [2022-07-21 06:07:25,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:25,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 06:07:25,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:25,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 06:07:25,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:07:25,731 INFO L87 Difference]: Start difference. First operand 15452 states and 21185 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:58,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:58,344 INFO L93 Difference]: Finished difference Result 29464 states and 40551 transitions. [2022-07-21 06:07:58,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 06:07:58,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-07-21 06:07:58,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:58,385 INFO L225 Difference]: With dead ends: 29464 [2022-07-21 06:07:58,385 INFO L226 Difference]: Without dead ends: 26662 [2022-07-21 06:07:58,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:07:58,394 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 1175 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:58,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 898 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:07:58,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26662 states. [2022-07-21 06:08:20,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26662 to 18252. [2022-07-21 06:08:20,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18252 states, 18251 states have (on average 1.3711577447811079) internal successors, (25025), 18251 states have internal predecessors, (25025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:20,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18252 states to 18252 states and 25025 transitions. [2022-07-21 06:08:20,886 INFO L78 Accepts]: Start accepts. Automaton has 18252 states and 25025 transitions. Word has length 118 [2022-07-21 06:08:20,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:20,886 INFO L495 AbstractCegarLoop]: Abstraction has 18252 states and 25025 transitions. [2022-07-21 06:08:20,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:20,886 INFO L276 IsEmpty]: Start isEmpty. Operand 18252 states and 25025 transitions. [2022-07-21 06:08:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-07-21 06:08:20,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:20,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:08:20,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-21 06:08:20,887 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-07-21 06:08:20,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1602725625, now seen corresponding path program 1 times [2022-07-21 06:08:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:20,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312060661] [2022-07-21 06:08:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:20,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:20,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:20,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:20,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312060661] [2022-07-21 06:08:20,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312060661] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:20,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:20,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:08:20,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694859109] [2022-07-21 06:08:20,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:20,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:08:20,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:20,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:08:20,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:08:20,925 INFO L87 Difference]: Start difference. First operand 18252 states and 25025 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)