./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-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 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 18:43:58,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 18:43:58,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 18:43:58,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 18:43:58,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 18:43:58,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 18:43:58,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 18:43:58,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 18:43:58,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 18:43:58,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 18:43:58,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 18:43:58,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 18:43:58,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 18:43:58,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 18:43:58,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 18:43:58,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 18:43:58,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 18:43:58,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 18:43:58,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 18:43:58,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 18:43:58,434 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 18:43:58,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 18:43:58,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 18:43:58,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 18:43:58,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 18:43:58,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 18:43:58,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 18:43:58,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 18:43:58,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 18:43:58,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 18:43:58,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 18:43:58,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 18:43:58,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 18:43:58,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 18:43:58,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 18:43:58,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 18:43:58,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 18:43:58,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 18:43:58,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 18:43:58,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 18:43:58,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 18:43:58,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 18:43:58,449 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 18:43:58,469 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 18:43:58,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 18:43:58,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 18:43:58,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 18:43:58,471 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 18:43:58,471 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 18:43:58,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 18:43:58,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 18:43:58,472 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 18:43:58,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 18:43:58,473 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 18:43:58,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 18:43:58,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 18:43:58,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 18:43:58,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 18:43:58,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 18:43:58,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 18:43:58,475 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 18:43:58,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 18:43:58,475 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 18:43:58,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 18:43:58,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 18:43:58,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 18:43:58,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 18:43:58,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:43:58,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 18:43:58,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 18:43:58,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 18:43:58,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 18:43:58,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 18:43:58,478 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 18:43:58,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 18:43:58,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 18:43:58,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08e27279d8b0f092d8b126b1fa68f6a49bc0b5cda6842121ef1790310988da5f [2022-07-22 18:43:58,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 18:43:58,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 18:43:58,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 18:43:58,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 18:43:58,704 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 18:43:58,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-22 18:43:58,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cabd4dc9/485f5764ea4b4873bc5cdd79ef2d30b3/FLAGb5abd1dbb [2022-07-22 18:43:59,333 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 18:43:59,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-22 18:43:59,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cabd4dc9/485f5764ea4b4873bc5cdd79ef2d30b3/FLAGb5abd1dbb [2022-07-22 18:43:59,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cabd4dc9/485f5764ea4b4873bc5cdd79ef2d30b3 [2022-07-22 18:43:59,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 18:43:59,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 18:43:59,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 18:43:59,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 18:43:59,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 18:43:59,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:43:59" (1/1) ... [2022-07-22 18:43:59,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16da9f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:43:59, skipping insertion in model container [2022-07-22 18:43:59,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 06:43:59" (1/1) ... [2022-07-22 18:43:59,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 18:43:59,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 18:44:00,010 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-07-22 18:44:00,053 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-07-22 18:44:00,076 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-07-22 18:44:00,086 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-07-22 18:44:00,095 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-07-22 18:44:00,103 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-07-22 18:44:00,113 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-07-22 18:44:00,132 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-07-22 18:44:00,139 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-07-22 18:44:00,146 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-07-22 18:44:00,158 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-07-22 18:44:00,172 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-07-22 18:44:00,175 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-07-22 18:44:00,180 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-07-22 18:44:00,187 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-07-22 18:44:00,204 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-07-22 18:44:00,232 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-07-22 18:44:00,236 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-07-22 18:44:00,246 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-07-22 18:44:00,253 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-07-22 18:44:00,287 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-07-22 18:44:00,317 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-07-22 18:44:00,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:44:00,622 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 18:44:00,708 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-07-22 18:44:00,738 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-07-22 18:44:00,750 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-07-22 18:44:00,760 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-07-22 18:44:00,773 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-07-22 18:44:00,782 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-07-22 18:44:00,792 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-07-22 18:44:00,817 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-07-22 18:44:00,826 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-07-22 18:44:00,837 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-07-22 18:44:00,850 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-07-22 18:44:00,866 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-07-22 18:44:00,870 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-07-22 18:44:00,874 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-07-22 18:44:00,882 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-07-22 18:44:00,897 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-07-22 18:44:00,921 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-07-22 18:44:00,924 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-07-22 18:44:00,928 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-07-22 18:44:00,936 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-07-22 18:44:00,966 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-07-22 18:44:00,980 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.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-07-22 18:44:01,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 18:44:01,182 INFO L208 MainTranslator]: Completed translation [2022-07-22 18:44:01,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01 WrapperNode [2022-07-22 18:44:01,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 18:44:01,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 18:44:01,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 18:44:01,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 18:44:01,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,394 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6593 [2022-07-22 18:44:01,395 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 18:44:01,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 18:44:01,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 18:44:01,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 18:44:01,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 18:44:01,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 18:44:01,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 18:44:01,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 18:44:01,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (1/1) ... [2022-07-22 18:44:01,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 18:44:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 18:44:01,572 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) [2022-07-22 18:44:01,593 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 [2022-07-22 18:44:01,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 18:44:01,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 18:44:01,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 18:44:01,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 18:44:01,895 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 18:44:01,897 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 18:44:04,064 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 18:44:04,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 18:44:04,078 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 18:44:04,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:44:04 BoogieIcfgContainer [2022-07-22 18:44:04,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 18:44:04,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 18:44:04,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 18:44:04,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 18:44:04,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 06:43:59" (1/3) ... [2022-07-22 18:44:04,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d527a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:44:04, skipping insertion in model container [2022-07-22 18:44:04,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 06:44:01" (2/3) ... [2022-07-22 18:44:04,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d527a82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 06:44:04, skipping insertion in model container [2022-07-22 18:44:04,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 06:44:04" (3/3) ... [2022-07-22 18:44:04,090 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-07-22 18:44:04,104 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 18:44:04,105 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-22 18:44:04,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 18:44:04,188 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@2a79cf3e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2da2f1a3 [2022-07-22 18:44:04,189 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-22 18:44:04,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 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) [2022-07-22 18:44:04,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-07-22 18:44:04,221 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:04,222 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] [2022-07-22 18:44:04,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:04,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:04,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2022-07-22 18:44:04,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:04,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475212366] [2022-07-22 18:44:04,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:04,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:04,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:04,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:04,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475212366] [2022-07-22 18:44:04,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475212366] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:04,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:04,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:04,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450545524] [2022-07-22 18:44:04,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:04,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:04,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:04,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:04,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:04,682 INFO L87 Difference]: Start difference. First operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 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 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2022-07-22 18:44:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:05,593 INFO L93 Difference]: Finished difference Result 2063 states and 3582 transitions. [2022-07-22 18:44:05,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:05,595 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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 86 [2022-07-22 18:44:05,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:05,619 INFO L225 Difference]: With dead ends: 2063 [2022-07-22 18:44:05,620 INFO L226 Difference]: Without dead ends: 1223 [2022-07-22 18:44:05,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 18:44:05,638 INFO L413 NwaCegarLoop]: 1034 mSDtfsCounter, 5615 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:05,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5615 Valid, 1396 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 18:44:05,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2022-07-22 18:44:05,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1143. [2022-07-22 18:44:05,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1121 states have (on average 1.3648528099910795) internal successors, (1530), 1142 states have internal predecessors, (1530), 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) [2022-07-22 18:44:05,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1530 transitions. [2022-07-22 18:44:05,801 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1530 transitions. Word has length 86 [2022-07-22 18:44:05,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:05,802 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1530 transitions. [2022-07-22 18:44:05,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 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) [2022-07-22 18:44:05,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1530 transitions. [2022-07-22 18:44:05,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-22 18:44:05,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:05,806 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] [2022-07-22 18:44:05,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 18:44:05,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:05,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:05,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2022-07-22 18:44:05,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:05,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101471222] [2022-07-22 18:44:05,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:05,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:05,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:05,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101471222] [2022-07-22 18:44:05,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101471222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:05,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:05,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:05,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951166982] [2022-07-22 18:44:05,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:05,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:05,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:05,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:05,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:05,990 INFO L87 Difference]: Start difference. First operand 1143 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2022-07-22 18:44:06,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:06,558 INFO L93 Difference]: Finished difference Result 1986 states and 2729 transitions. [2022-07-22 18:44:06,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:06,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 87 [2022-07-22 18:44:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:06,576 INFO L225 Difference]: With dead ends: 1986 [2022-07-22 18:44:06,576 INFO L226 Difference]: Without dead ends: 1039 [2022-07-22 18:44:06,578 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 [2022-07-22 18:44:06,578 INFO L413 NwaCegarLoop]: 533 mSDtfsCounter, 2867 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:06,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2867 Valid, 569 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:44:06,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-07-22 18:44:06,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2022-07-22 18:44:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1017 states have (on average 1.384464110127827) internal successors, (1408), 1038 states have internal predecessors, (1408), 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) [2022-07-22 18:44:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1408 transitions. [2022-07-22 18:44:06,670 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1408 transitions. Word has length 87 [2022-07-22 18:44:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:06,670 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1408 transitions. [2022-07-22 18:44:06,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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) [2022-07-22 18:44:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1408 transitions. [2022-07-22 18:44:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-07-22 18:44:06,687 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:06,688 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] [2022-07-22 18:44:06,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 18:44:06,688 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:06,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2022-07-22 18:44:06,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:06,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398357581] [2022-07-22 18:44:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:06,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:06,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:06,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:06,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398357581] [2022-07-22 18:44:06,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398357581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:06,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:06,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:06,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406595908] [2022-07-22 18:44:06,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:06,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:06,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:06,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:06,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:06,822 INFO L87 Difference]: Start difference. First operand 1039 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2022-07-22 18:44:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:07,286 INFO L93 Difference]: Finished difference Result 1882 states and 2605 transitions. [2022-07-22 18:44:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:07,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2022-07-22 18:44:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:07,291 INFO L225 Difference]: With dead ends: 1882 [2022-07-22 18:44:07,291 INFO L226 Difference]: Without dead ends: 975 [2022-07-22 18:44:07,293 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 [2022-07-22 18:44:07,294 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 2682 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:07,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2682 Valid, 537 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:44:07,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-07-22 18:44:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-07-22 18:44:07,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 953 states have (on average 1.3997901364113325) internal successors, (1334), 974 states have internal predecessors, (1334), 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) [2022-07-22 18:44:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1334 transitions. [2022-07-22 18:44:07,341 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1334 transitions. Word has length 88 [2022-07-22 18:44:07,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:07,342 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1334 transitions. [2022-07-22 18:44:07,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 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) [2022-07-22 18:44:07,342 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1334 transitions. [2022-07-22 18:44:07,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-22 18:44:07,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:07,345 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] [2022-07-22 18:44:07,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 18:44:07,345 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:07,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:07,346 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2022-07-22 18:44:07,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:07,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077887626] [2022-07-22 18:44:07,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:07,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:07,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:07,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:07,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077887626] [2022-07-22 18:44:07,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077887626] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:07,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:07,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:07,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206051791] [2022-07-22 18:44:07,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:07,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:07,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:07,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:07,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:07,443 INFO L87 Difference]: Start difference. First operand 975 states and 1334 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-07-22 18:44:07,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:07,874 INFO L93 Difference]: Finished difference Result 1818 states and 2529 transitions. [2022-07-22 18:44:07,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:07,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 89 [2022-07-22 18:44:07,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:07,879 INFO L225 Difference]: With dead ends: 1818 [2022-07-22 18:44:07,880 INFO L226 Difference]: Without dead ends: 934 [2022-07-22 18:44:07,881 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 [2022-07-22 18:44:07,882 INFO L413 NwaCegarLoop]: 500 mSDtfsCounter, 2582 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:07,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 512 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:44:07,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-07-22 18:44:07,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2022-07-22 18:44:07,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.4111842105263157) internal successors, (1287), 933 states have internal predecessors, (1287), 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) [2022-07-22 18:44:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1287 transitions. [2022-07-22 18:44:07,940 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1287 transitions. Word has length 89 [2022-07-22 18:44:07,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:07,940 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1287 transitions. [2022-07-22 18:44:07,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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) [2022-07-22 18:44:07,941 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1287 transitions. [2022-07-22 18:44:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-07-22 18:44:07,943 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:07,943 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] [2022-07-22 18:44:07,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 18:44:07,944 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:07,944 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2022-07-22 18:44:07,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:07,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386876986] [2022-07-22 18:44:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:07,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:08,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:08,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386876986] [2022-07-22 18:44:08,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386876986] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:08,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:08,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:08,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304552970] [2022-07-22 18:44:08,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:08,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:08,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:08,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:08,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:08,024 INFO L87 Difference]: Start difference. First operand 934 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-07-22 18:44:08,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:08,432 INFO L93 Difference]: Finished difference Result 1777 states and 2480 transitions. [2022-07-22 18:44:08,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:08,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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 90 [2022-07-22 18:44:08,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:08,440 INFO L225 Difference]: With dead ends: 1777 [2022-07-22 18:44:08,440 INFO L226 Difference]: Without dead ends: 915 [2022-07-22 18:44:08,442 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 [2022-07-22 18:44:08,443 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 2499 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:08,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 501 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:44:08,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-07-22 18:44:08,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2022-07-22 18:44:08,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 893 states have (on average 1.4154535274356104) internal successors, (1264), 914 states have internal predecessors, (1264), 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) [2022-07-22 18:44:08,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1264 transitions. [2022-07-22 18:44:08,496 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1264 transitions. Word has length 90 [2022-07-22 18:44:08,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:08,496 INFO L495 AbstractCegarLoop]: Abstraction has 915 states and 1264 transitions. [2022-07-22 18:44:08,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-07-22 18:44:08,497 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1264 transitions. [2022-07-22 18:44:08,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-22 18:44:08,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:08,499 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] [2022-07-22 18:44:08,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 18:44:08,499 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:08,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2022-07-22 18:44:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:08,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055090977] [2022-07-22 18:44:08,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:08,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:08,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055090977] [2022-07-22 18:44:08,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055090977] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:08,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:08,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 18:44:08,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934382606] [2022-07-22 18:44:08,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:08,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 18:44:08,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:08,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 18:44:08,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 18:44:08,652 INFO L87 Difference]: Start difference. First operand 915 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-07-22 18:44:09,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:09,148 INFO L93 Difference]: Finished difference Result 1758 states and 2455 transitions. [2022-07-22 18:44:09,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 18:44:09,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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 91 [2022-07-22 18:44:09,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:09,153 INFO L225 Difference]: With dead ends: 1758 [2022-07-22 18:44:09,153 INFO L226 Difference]: Without dead ends: 910 [2022-07-22 18:44:09,155 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 [2022-07-22 18:44:09,155 INFO L413 NwaCegarLoop]: 382 mSDtfsCounter, 2361 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:09,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 426 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:44:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-07-22 18:44:09,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2022-07-22 18:44:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 909 states have internal predecessors, (1256), 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) [2022-07-22 18:44:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1256 transitions. [2022-07-22 18:44:09,206 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1256 transitions. Word has length 91 [2022-07-22 18:44:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:09,206 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1256 transitions. [2022-07-22 18:44:09,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 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) [2022-07-22 18:44:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1256 transitions. [2022-07-22 18:44:09,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 18:44:09,208 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:09,209 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] [2022-07-22 18:44:09,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 18:44:09,209 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:09,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:09,210 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2022-07-22 18:44:09,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:09,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180397419] [2022-07-22 18:44:09,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:09,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:09,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:09,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180397419] [2022-07-22 18:44:09,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180397419] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:09,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:09,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:09,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838741366] [2022-07-22 18:44:09,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:09,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:09,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:09,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:09,342 INFO L87 Difference]: Start difference. First operand 910 states and 1256 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-07-22 18:44:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:10,541 INFO L93 Difference]: Finished difference Result 1936 states and 2726 transitions. [2022-07-22 18:44:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:10,542 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2022-07-22 18:44:10,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:10,549 INFO L225 Difference]: With dead ends: 1936 [2022-07-22 18:44:10,549 INFO L226 Difference]: Without dead ends: 1738 [2022-07-22 18:44:10,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:10,551 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 3913 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3913 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:10,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3913 Valid, 2241 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:10,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-22 18:44:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-22 18:44:10,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4132882882882882) internal successors, (1255), 909 states have internal predecessors, (1255), 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) [2022-07-22 18:44:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1255 transitions. [2022-07-22 18:44:10,621 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1255 transitions. Word has length 92 [2022-07-22 18:44:10,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:10,622 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1255 transitions. [2022-07-22 18:44:10,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-07-22 18:44:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1255 transitions. [2022-07-22 18:44:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 18:44:10,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:10,625 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] [2022-07-22 18:44:10,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 18:44:10,626 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:10,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2022-07-22 18:44:10,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:10,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649260886] [2022-07-22 18:44:10,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:10,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:10,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:10,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:10,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:10,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649260886] [2022-07-22 18:44:10,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649260886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:10,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:10,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:44:10,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806933244] [2022-07-22 18:44:10,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:10,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:44:10,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:10,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:44:10,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:44:10,806 INFO L87 Difference]: Start difference. First operand 910 states and 1255 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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) [2022-07-22 18:44:12,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:12,376 INFO L93 Difference]: Finished difference Result 2093 states and 2923 transitions. [2022-07-22 18:44:12,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 18:44:12,380 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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 92 [2022-07-22 18:44:12,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:12,387 INFO L225 Difference]: With dead ends: 2093 [2022-07-22 18:44:12,387 INFO L226 Difference]: Without dead ends: 1881 [2022-07-22 18:44:12,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:44:12,389 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 3122 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3122 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 2563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:12,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3122 Valid, 3247 Invalid, 2563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 18:44:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-07-22 18:44:12,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 913. [2022-07-22 18:44:12,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4118967452300786) internal successors, (1258), 912 states have internal predecessors, (1258), 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) [2022-07-22 18:44:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2022-07-22 18:44:12,470 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 92 [2022-07-22 18:44:12,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:12,470 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2022-07-22 18:44:12,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 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) [2022-07-22 18:44:12,471 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2022-07-22 18:44:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 18:44:12,472 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:12,473 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] [2022-07-22 18:44:12,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 18:44:12,473 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:12,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:12,474 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2022-07-22 18:44:12,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:12,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967822897] [2022-07-22 18:44:12,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:12,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:12,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:12,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:12,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967822897] [2022-07-22 18:44:12,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967822897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:12,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:12,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:12,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575490771] [2022-07-22 18:44:12,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:12,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:12,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:12,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:12,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:12,662 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-07-22 18:44:14,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:14,083 INFO L93 Difference]: Finished difference Result 1755 states and 2441 transitions. [2022-07-22 18:44:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:14,084 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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 92 [2022-07-22 18:44:14,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:14,089 INFO L225 Difference]: With dead ends: 1755 [2022-07-22 18:44:14,089 INFO L226 Difference]: Without dead ends: 1488 [2022-07-22 18:44:14,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:14,090 INFO L413 NwaCegarLoop]: 528 mSDtfsCounter, 4470 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:14,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4470 Valid, 2810 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:44:14,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-07-22 18:44:14,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 910. [2022-07-22 18:44:14,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.412162162162162) internal successors, (1254), 909 states have internal predecessors, (1254), 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) [2022-07-22 18:44:14,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1254 transitions. [2022-07-22 18:44:14,168 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1254 transitions. Word has length 92 [2022-07-22 18:44:14,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:14,168 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1254 transitions. [2022-07-22 18:44:14,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 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) [2022-07-22 18:44:14,168 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1254 transitions. [2022-07-22 18:44:14,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-07-22 18:44:14,170 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:14,170 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] [2022-07-22 18:44:14,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 18:44:14,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:14,175 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2022-07-22 18:44:14,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:14,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083176850] [2022-07-22 18:44:14,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:14,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:14,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:14,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083176850] [2022-07-22 18:44:14,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083176850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:14,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:14,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 18:44:14,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547439570] [2022-07-22 18:44:14,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:14,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:44:14,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:14,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:44:14,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:44:14,298 INFO L87 Difference]: Start difference. First operand 910 states and 1254 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-07-22 18:44:15,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:15,087 INFO L93 Difference]: Finished difference Result 1659 states and 2225 transitions. [2022-07-22 18:44:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:44:15,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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 92 [2022-07-22 18:44:15,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:15,092 INFO L225 Difference]: With dead ends: 1659 [2022-07-22 18:44:15,092 INFO L226 Difference]: Without dead ends: 1239 [2022-07-22 18:44:15,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-22 18:44:15,094 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 3810 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:15,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3810 Valid, 1045 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:44:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-07-22 18:44:15,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 910. [2022-07-22 18:44:15,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4110360360360361) internal successors, (1253), 909 states have internal predecessors, (1253), 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) [2022-07-22 18:44:15,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1253 transitions. [2022-07-22 18:44:15,180 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1253 transitions. Word has length 92 [2022-07-22 18:44:15,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:15,181 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1253 transitions. [2022-07-22 18:44:15,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 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) [2022-07-22 18:44:15,181 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1253 transitions. [2022-07-22 18:44:15,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:15,183 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:15,183 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] [2022-07-22 18:44:15,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 18:44:15,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:15,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2022-07-22 18:44:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:15,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654414667] [2022-07-22 18:44:15,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:15,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:15,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:15,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:15,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654414667] [2022-07-22 18:44:15,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654414667] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:15,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:15,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:15,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810145469] [2022-07-22 18:44:15,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:15,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:15,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:15,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:15,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:15,307 INFO L87 Difference]: Start difference. First operand 910 states and 1253 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:16,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:16,306 INFO L93 Difference]: Finished difference Result 1542 states and 2156 transitions. [2022-07-22 18:44:16,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:44:16,306 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:16,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:16,311 INFO L225 Difference]: With dead ends: 1542 [2022-07-22 18:44:16,311 INFO L226 Difference]: Without dead ends: 1140 [2022-07-22 18:44:16,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-07-22 18:44:16,313 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 3953 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3953 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:16,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3953 Valid, 2134 Invalid, 1729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:16,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-07-22 18:44:16,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 910. [2022-07-22 18:44:16,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4087837837837838) internal successors, (1251), 909 states have internal predecessors, (1251), 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) [2022-07-22 18:44:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1251 transitions. [2022-07-22 18:44:16,409 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1251 transitions. Word has length 94 [2022-07-22 18:44:16,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:16,409 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1251 transitions. [2022-07-22 18:44:16,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1251 transitions. [2022-07-22 18:44:16,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:16,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:16,411 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] [2022-07-22 18:44:16,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 18:44:16,412 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:16,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:16,412 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2022-07-22 18:44:16,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:16,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771886498] [2022-07-22 18:44:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:16,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:16,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:16,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771886498] [2022-07-22 18:44:16,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771886498] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:16,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:16,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:16,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982829487] [2022-07-22 18:44:16,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:16,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:16,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:16,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:16,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:16,528 INFO L87 Difference]: Start difference. First operand 910 states and 1251 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:17,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:17,764 INFO L93 Difference]: Finished difference Result 1902 states and 2665 transitions. [2022-07-22 18:44:17,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:17,764 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:17,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:17,769 INFO L225 Difference]: With dead ends: 1902 [2022-07-22 18:44:17,769 INFO L226 Difference]: Without dead ends: 1710 [2022-07-22 18:44:17,769 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 [2022-07-22 18:44:17,770 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 4795 mSDsluCounter, 1864 mSDsCounter, 0 mSdLazyCounter, 1950 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 2025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:17,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 2439 Invalid, 2025 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1950 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:17,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-22 18:44:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-22 18:44:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 909 states have internal predecessors, (1249), 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) [2022-07-22 18:44:17,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1249 transitions. [2022-07-22 18:44:17,848 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1249 transitions. Word has length 94 [2022-07-22 18:44:17,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:17,849 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1249 transitions. [2022-07-22 18:44:17,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:17,849 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1249 transitions. [2022-07-22 18:44:17,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:17,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:17,851 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] [2022-07-22 18:44:17,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 18:44:17,851 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:17,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:17,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2022-07-22 18:44:17,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:17,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959406383] [2022-07-22 18:44:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:17,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:17,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:17,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:17,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959406383] [2022-07-22 18:44:17,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959406383] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:17,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:17,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:17,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36210919] [2022-07-22 18:44:17,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:17,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:17,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:17,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:17,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:17,962 INFO L87 Difference]: Start difference. First operand 910 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:19,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:19,173 INFO L93 Difference]: Finished difference Result 1984 states and 2782 transitions. [2022-07-22 18:44:19,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:19,174 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:19,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:19,178 INFO L225 Difference]: With dead ends: 1984 [2022-07-22 18:44:19,178 INFO L226 Difference]: Without dead ends: 1738 [2022-07-22 18:44:19,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:19,179 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 2976 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:19,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2976 Valid, 3288 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:19,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-22 18:44:19,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-22 18:44:19,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4042792792792793) internal successors, (1247), 909 states have internal predecessors, (1247), 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) [2022-07-22 18:44:19,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1247 transitions. [2022-07-22 18:44:19,268 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1247 transitions. Word has length 94 [2022-07-22 18:44:19,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:19,268 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1247 transitions. [2022-07-22 18:44:19,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1247 transitions. [2022-07-22 18:44:19,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:19,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:19,271 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] [2022-07-22 18:44:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 18:44:19,271 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:19,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:19,272 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2022-07-22 18:44:19,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:19,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30179769] [2022-07-22 18:44:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:19,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:19,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:19,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:19,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30179769] [2022-07-22 18:44:19,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30179769] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:19,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:19,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:19,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979727665] [2022-07-22 18:44:19,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:19,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:19,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:19,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:19,375 INFO L87 Difference]: Start difference. First operand 910 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:20,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:20,549 INFO L93 Difference]: Finished difference Result 1950 states and 2731 transitions. [2022-07-22 18:44:20,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:20,550 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:20,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:20,554 INFO L225 Difference]: With dead ends: 1950 [2022-07-22 18:44:20,554 INFO L226 Difference]: Without dead ends: 1738 [2022-07-22 18:44:20,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:20,556 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 4325 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4325 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:20,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4325 Valid, 3115 Invalid, 2438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:20,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-22 18:44:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-22 18:44:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4031531531531531) internal successors, (1246), 909 states have internal predecessors, (1246), 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) [2022-07-22 18:44:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1246 transitions. [2022-07-22 18:44:20,664 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1246 transitions. Word has length 94 [2022-07-22 18:44:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:20,664 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1246 transitions. [2022-07-22 18:44:20,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1246 transitions. [2022-07-22 18:44:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:20,666 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:20,667 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] [2022-07-22 18:44:20,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-22 18:44:20,667 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:20,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:20,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2022-07-22 18:44:20,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:20,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655468739] [2022-07-22 18:44:20,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:20,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:20,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:20,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655468739] [2022-07-22 18:44:20,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655468739] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:20,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:20,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754345518] [2022-07-22 18:44:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:20,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:20,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:20,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:20,800 INFO L87 Difference]: Start difference. First operand 910 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:21,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:21,918 INFO L93 Difference]: Finished difference Result 1791 states and 2478 transitions. [2022-07-22 18:44:21,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:21,918 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:21,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:21,922 INFO L225 Difference]: With dead ends: 1791 [2022-07-22 18:44:21,922 INFO L226 Difference]: Without dead ends: 1638 [2022-07-22 18:44:21,923 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 [2022-07-22 18:44:21,923 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 3937 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3937 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:21,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3937 Valid, 2133 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-22 18:44:22,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-22 18:44:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.402027027027027) internal successors, (1245), 909 states have internal predecessors, (1245), 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) [2022-07-22 18:44:22,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1245 transitions. [2022-07-22 18:44:22,025 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1245 transitions. Word has length 94 [2022-07-22 18:44:22,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:22,025 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1245 transitions. [2022-07-22 18:44:22,026 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1245 transitions. [2022-07-22 18:44:22,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:22,027 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:22,028 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] [2022-07-22 18:44:22,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-22 18:44:22,028 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:22,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2022-07-22 18:44:22,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:22,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655459978] [2022-07-22 18:44:22,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:22,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:22,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:22,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:22,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655459978] [2022-07-22 18:44:22,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655459978] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:22,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:22,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:22,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731843683] [2022-07-22 18:44:22,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:22,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:22,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:22,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:22,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:22,146 INFO L87 Difference]: Start difference. First operand 910 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:23,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:23,487 INFO L93 Difference]: Finished difference Result 1883 states and 2631 transitions. [2022-07-22 18:44:23,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:23,487 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:23,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:23,491 INFO L225 Difference]: With dead ends: 1883 [2022-07-22 18:44:23,491 INFO L226 Difference]: Without dead ends: 1710 [2022-07-22 18:44:23,492 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 [2022-07-22 18:44:23,493 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 3181 mSDsluCounter, 2209 mSDsCounter, 0 mSdLazyCounter, 2341 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 2392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:23,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 2938 Invalid, 2392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2341 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-22 18:44:23,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-22 18:44:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4009009009009008) internal successors, (1244), 909 states have internal predecessors, (1244), 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) [2022-07-22 18:44:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1244 transitions. [2022-07-22 18:44:23,590 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1244 transitions. Word has length 94 [2022-07-22 18:44:23,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:23,590 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1244 transitions. [2022-07-22 18:44:23,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:23,591 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1244 transitions. [2022-07-22 18:44:23,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-07-22 18:44:23,593 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:23,593 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] [2022-07-22 18:44:23,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-22 18:44:23,593 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:23,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:23,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2022-07-22 18:44:23,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:23,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403462938] [2022-07-22 18:44:23,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:23,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:23,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:23,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403462938] [2022-07-22 18:44:23,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403462938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:23,707 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:23,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:23,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137247281] [2022-07-22 18:44:23,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:23,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:23,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:23,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:23,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:23,708 INFO L87 Difference]: Start difference. First operand 910 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:24,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:24,975 INFO L93 Difference]: Finished difference Result 1878 states and 2625 transitions. [2022-07-22 18:44:24,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:24,975 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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 94 [2022-07-22 18:44:24,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:24,979 INFO L225 Difference]: With dead ends: 1878 [2022-07-22 18:44:24,979 INFO L226 Difference]: Without dead ends: 1710 [2022-07-22 18:44:24,980 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 [2022-07-22 18:44:24,980 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 4329 mSDsluCounter, 2124 mSDsCounter, 0 mSdLazyCounter, 2210 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4329 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 2279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:24,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4329 Valid, 2781 Invalid, 2279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 2210 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:24,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-22 18:44:25,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-22 18:44:25,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3997747747747749) internal successors, (1243), 909 states have internal predecessors, (1243), 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) [2022-07-22 18:44:25,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1243 transitions. [2022-07-22 18:44:25,081 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1243 transitions. Word has length 94 [2022-07-22 18:44:25,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:25,082 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1243 transitions. [2022-07-22 18:44:25,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 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) [2022-07-22 18:44:25,082 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1243 transitions. [2022-07-22 18:44:25,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:25,083 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:25,083 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] [2022-07-22 18:44:25,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-22 18:44:25,083 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:25,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:25,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2022-07-22 18:44:25,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:25,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441787422] [2022-07-22 18:44:25,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:25,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:25,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:25,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441787422] [2022-07-22 18:44:25,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441787422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:25,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:25,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:25,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384256296] [2022-07-22 18:44:25,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:25,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:25,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:25,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:25,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:25,200 INFO L87 Difference]: Start difference. First operand 910 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:26,377 INFO L93 Difference]: Finished difference Result 1914 states and 2670 transitions. [2022-07-22 18:44:26,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:26,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:26,383 INFO L225 Difference]: With dead ends: 1914 [2022-07-22 18:44:26,383 INFO L226 Difference]: Without dead ends: 1710 [2022-07-22 18:44:26,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:44:26,384 INFO L413 NwaCegarLoop]: 622 mSDtfsCounter, 4664 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:26,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4664 Valid, 2663 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:26,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-07-22 18:44:26,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-07-22 18:44:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3975225225225225) internal successors, (1241), 909 states have internal predecessors, (1241), 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) [2022-07-22 18:44:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1241 transitions. [2022-07-22 18:44:26,487 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1241 transitions. Word has length 96 [2022-07-22 18:44:26,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:26,488 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1241 transitions. [2022-07-22 18:44:26,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1241 transitions. [2022-07-22 18:44:26,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:26,490 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:26,490 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] [2022-07-22 18:44:26,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-22 18:44:26,491 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:26,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:26,491 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2022-07-22 18:44:26,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:26,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992904566] [2022-07-22 18:44:26,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:26,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:26,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:26,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:26,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992904566] [2022-07-22 18:44:26,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992904566] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:26,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:26,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:26,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965266912] [2022-07-22 18:44:26,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:26,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:26,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:26,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:26,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:26,599 INFO L87 Difference]: Start difference. First operand 910 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:27,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:27,798 INFO L93 Difference]: Finished difference Result 1794 states and 2476 transitions. [2022-07-22 18:44:27,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:27,798 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:27,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:27,802 INFO L225 Difference]: With dead ends: 1794 [2022-07-22 18:44:27,802 INFO L226 Difference]: Without dead ends: 1638 [2022-07-22 18:44:27,803 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 [2022-07-22 18:44:27,804 INFO L413 NwaCegarLoop]: 515 mSDtfsCounter, 2433 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1778 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2433 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:27,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2433 Valid, 2133 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1778 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:27,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-22 18:44:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-22 18:44:27,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 909 states have internal predecessors, (1239), 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) [2022-07-22 18:44:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1239 transitions. [2022-07-22 18:44:27,924 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1239 transitions. Word has length 96 [2022-07-22 18:44:27,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:27,925 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1239 transitions. [2022-07-22 18:44:27,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1239 transitions. [2022-07-22 18:44:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:27,927 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:27,927 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] [2022-07-22 18:44:27,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-22 18:44:27,927 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:27,928 INFO L85 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2022-07-22 18:44:27,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:27,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849905431] [2022-07-22 18:44:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:28,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:28,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:28,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849905431] [2022-07-22 18:44:28,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849905431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:28,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:28,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:28,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602262055] [2022-07-22 18:44:28,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:28,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:28,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:28,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:28,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:28,034 INFO L87 Difference]: Start difference. First operand 910 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:29,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:29,326 INFO L93 Difference]: Finished difference Result 2016 states and 2805 transitions. [2022-07-22 18:44:29,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:29,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:29,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:29,330 INFO L225 Difference]: With dead ends: 2016 [2022-07-22 18:44:29,330 INFO L226 Difference]: Without dead ends: 1738 [2022-07-22 18:44:29,331 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 [2022-07-22 18:44:29,331 INFO L413 NwaCegarLoop]: 809 mSDtfsCounter, 3060 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:29,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 3134 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:29,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-07-22 18:44:29,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-07-22 18:44:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.393018018018018) internal successors, (1237), 909 states have internal predecessors, (1237), 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) [2022-07-22 18:44:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1237 transitions. [2022-07-22 18:44:29,471 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1237 transitions. Word has length 96 [2022-07-22 18:44:29,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:29,471 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1237 transitions. [2022-07-22 18:44:29,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:29,471 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1237 transitions. [2022-07-22 18:44:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:29,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:29,473 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] [2022-07-22 18:44:29,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-22 18:44:29,474 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:29,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1818861412, now seen corresponding path program 1 times [2022-07-22 18:44:29,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:29,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258727269] [2022-07-22 18:44:29,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:29,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:29,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:29,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258727269] [2022-07-22 18:44:29,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258727269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:29,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:29,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:44:29,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515281849] [2022-07-22 18:44:29,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:29,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:44:29,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:29,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:44:29,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:44:29,669 INFO L87 Difference]: Start difference. First operand 910 states and 1237 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2022-07-22 18:44:32,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:32,052 INFO L93 Difference]: Finished difference Result 2774 states and 3913 transitions. [2022-07-22 18:44:32,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:44:32,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:32,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:32,056 INFO L225 Difference]: With dead ends: 2774 [2022-07-22 18:44:32,056 INFO L226 Difference]: Without dead ends: 2608 [2022-07-22 18:44:32,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:44:32,057 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 6255 mSDsluCounter, 2435 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6255 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 3215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:32,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6255 Valid, 3130 Invalid, 3215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 18:44:32,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2022-07-22 18:44:32,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 918. [2022-07-22 18:44:32,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3895089285714286) internal successors, (1245), 917 states have internal predecessors, (1245), 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) [2022-07-22 18:44:32,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1245 transitions. [2022-07-22 18:44:32,204 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1245 transitions. Word has length 96 [2022-07-22 18:44:32,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:32,204 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1245 transitions. [2022-07-22 18:44:32,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2022-07-22 18:44:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1245 transitions. [2022-07-22 18:44:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:32,206 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:32,207 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] [2022-07-22 18:44:32,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-22 18:44:32,207 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:32,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:32,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2022-07-22 18:44:32,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:32,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686115625] [2022-07-22 18:44:32,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:32,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:32,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:32,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:32,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686115625] [2022-07-22 18:44:32,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686115625] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:32,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:32,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030407912] [2022-07-22 18:44:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:32,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:32,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:32,335 INFO L87 Difference]: Start difference. First operand 918 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:33,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:33,803 INFO L93 Difference]: Finished difference Result 1850 states and 2567 transitions. [2022-07-22 18:44:33,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:33,805 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:33,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:33,807 INFO L225 Difference]: With dead ends: 1850 [2022-07-22 18:44:33,807 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:33,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:33,813 INFO L413 NwaCegarLoop]: 598 mSDtfsCounter, 3889 mSDsluCounter, 2551 mSDsCounter, 0 mSdLazyCounter, 2462 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3889 SdHoareTripleChecker+Valid, 3149 SdHoareTripleChecker+Invalid, 2562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:33,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3889 Valid, 3149 Invalid, 2562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2462 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:33,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:33,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:44:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3872767857142858) internal successors, (1243), 917 states have internal predecessors, (1243), 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) [2022-07-22 18:44:33,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1243 transitions. [2022-07-22 18:44:33,971 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1243 transitions. Word has length 96 [2022-07-22 18:44:33,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:33,971 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1243 transitions. [2022-07-22 18:44:33,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:33,972 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1243 transitions. [2022-07-22 18:44:33,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:33,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:33,974 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] [2022-07-22 18:44:33,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-22 18:44:33,974 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:33,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2022-07-22 18:44:33,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:33,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231419434] [2022-07-22 18:44:33,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:33,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:34,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:34,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231419434] [2022-07-22 18:44:34,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231419434] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:34,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:34,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:34,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19384587] [2022-07-22 18:44:34,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:34,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:34,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:34,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:34,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:34,082 INFO L87 Difference]: Start difference. First operand 918 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:35,477 INFO L93 Difference]: Finished difference Result 1910 states and 2651 transitions. [2022-07-22 18:44:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:35,477 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:35,480 INFO L225 Difference]: With dead ends: 1910 [2022-07-22 18:44:35,480 INFO L226 Difference]: Without dead ends: 1718 [2022-07-22 18:44:35,481 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 [2022-07-22 18:44:35,481 INFO L413 NwaCegarLoop]: 837 mSDtfsCounter, 2762 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2641 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:35,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 3366 Invalid, 2687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2641 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-22 18:44:35,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-22 18:44:35,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3850446428571428) internal successors, (1241), 917 states have internal predecessors, (1241), 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) [2022-07-22 18:44:35,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1241 transitions. [2022-07-22 18:44:35,611 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1241 transitions. Word has length 96 [2022-07-22 18:44:35,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:35,611 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1241 transitions. [2022-07-22 18:44:35,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:35,612 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1241 transitions. [2022-07-22 18:44:35,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:35,613 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:35,613 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] [2022-07-22 18:44:35,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-22 18:44:35,614 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:35,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:35,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2022-07-22 18:44:35,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:35,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463958681] [2022-07-22 18:44:35,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:35,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:35,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:35,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:35,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463958681] [2022-07-22 18:44:35,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463958681] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:35,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:35,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255385107] [2022-07-22 18:44:35,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:35,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:35,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:35,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:35,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:35,730 INFO L87 Difference]: Start difference. First operand 918 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:36,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:36,995 INFO L93 Difference]: Finished difference Result 1651 states and 2249 transitions. [2022-07-22 18:44:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:36,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:36,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:36,998 INFO L225 Difference]: With dead ends: 1651 [2022-07-22 18:44:36,998 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:44:36,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:36,999 INFO L413 NwaCegarLoop]: 520 mSDtfsCounter, 2408 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 1787 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:36,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 2154 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1787 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:44:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:44:37,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3828125) internal successors, (1239), 917 states have internal predecessors, (1239), 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) [2022-07-22 18:44:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1239 transitions. [2022-07-22 18:44:37,150 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1239 transitions. Word has length 96 [2022-07-22 18:44:37,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:37,151 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1239 transitions. [2022-07-22 18:44:37,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:37,151 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1239 transitions. [2022-07-22 18:44:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:37,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:37,153 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] [2022-07-22 18:44:37,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-22 18:44:37,153 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:37,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2022-07-22 18:44:37,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:37,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511016290] [2022-07-22 18:44:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:37,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:37,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:37,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:37,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511016290] [2022-07-22 18:44:37,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511016290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:37,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:37,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:37,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270568012] [2022-07-22 18:44:37,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:37,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:37,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:37,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:37,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:37,284 INFO L87 Difference]: Start difference. First operand 918 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:38,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:38,640 INFO L93 Difference]: Finished difference Result 1900 states and 2629 transitions. [2022-07-22 18:44:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:38,641 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:38,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:38,643 INFO L225 Difference]: With dead ends: 1900 [2022-07-22 18:44:38,643 INFO L226 Difference]: Without dead ends: 1718 [2022-07-22 18:44:38,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:38,644 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 3706 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 2389 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3706 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 2449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:38,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3706 Valid, 3125 Invalid, 2449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2389 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:38,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-22 18:44:38,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-22 18:44:38,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3816964285714286) internal successors, (1238), 917 states have internal predecessors, (1238), 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) [2022-07-22 18:44:38,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1238 transitions. [2022-07-22 18:44:38,783 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1238 transitions. Word has length 96 [2022-07-22 18:44:38,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:38,783 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1238 transitions. [2022-07-22 18:44:38,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:38,784 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1238 transitions. [2022-07-22 18:44:38,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:38,785 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:38,786 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] [2022-07-22 18:44:38,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-22 18:44:38,786 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:38,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:38,786 INFO L85 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2022-07-22 18:44:38,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:38,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897441560] [2022-07-22 18:44:38,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:38,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:38,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:38,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897441560] [2022-07-22 18:44:38,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897441560] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:38,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:38,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:38,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950207661] [2022-07-22 18:44:38,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:38,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:38,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:38,901 INFO L87 Difference]: Start difference. First operand 918 states and 1238 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:40,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:40,382 INFO L93 Difference]: Finished difference Result 1846 states and 2553 transitions. [2022-07-22 18:44:40,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:40,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:40,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:40,385 INFO L225 Difference]: With dead ends: 1846 [2022-07-22 18:44:40,385 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:40,385 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 [2022-07-22 18:44:40,386 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 3793 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 2573 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3793 SdHoareTripleChecker+Valid, 3345 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:40,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3793 Valid, 3345 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2573 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:40,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:44:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3805803571428572) internal successors, (1237), 917 states have internal predecessors, (1237), 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) [2022-07-22 18:44:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1237 transitions. [2022-07-22 18:44:40,546 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1237 transitions. Word has length 96 [2022-07-22 18:44:40,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:40,546 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1237 transitions. [2022-07-22 18:44:40,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:40,546 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1237 transitions. [2022-07-22 18:44:40,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:40,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:40,548 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] [2022-07-22 18:44:40,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-22 18:44:40,548 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2022-07-22 18:44:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107179716] [2022-07-22 18:44:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:40,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:40,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107179716] [2022-07-22 18:44:40,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107179716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:40,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:40,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:40,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172556827] [2022-07-22 18:44:40,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:40,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:40,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:40,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:40,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:40,692 INFO L87 Difference]: Start difference. First operand 918 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:42,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:42,188 INFO L93 Difference]: Finished difference Result 1842 states and 2548 transitions. [2022-07-22 18:44:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:42,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:42,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:42,191 INFO L225 Difference]: With dead ends: 1842 [2022-07-22 18:44:42,191 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:42,192 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 [2022-07-22 18:44:42,193 INFO L413 NwaCegarLoop]: 648 mSDtfsCounter, 3785 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3785 SdHoareTripleChecker+Valid, 3348 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:42,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3785 Valid, 3348 Invalid, 2669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:42,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:42,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:44:42,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3794642857142858) internal successors, (1236), 917 states have internal predecessors, (1236), 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) [2022-07-22 18:44:42,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1236 transitions. [2022-07-22 18:44:42,370 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1236 transitions. Word has length 96 [2022-07-22 18:44:42,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:42,370 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1236 transitions. [2022-07-22 18:44:42,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:42,370 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1236 transitions. [2022-07-22 18:44:42,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:42,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:42,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:44:42,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-22 18:44:42,373 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:42,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:42,373 INFO L85 PathProgramCache]: Analyzing trace with hash -2013822329, now seen corresponding path program 1 times [2022-07-22 18:44:42,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:42,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024961813] [2022-07-22 18:44:42,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:42,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:42,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024961813] [2022-07-22 18:44:42,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024961813] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:42,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:42,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307134299] [2022-07-22 18:44:42,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:42,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:42,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:42,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:42,483 INFO L87 Difference]: Start difference. First operand 918 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:44,015 INFO L93 Difference]: Finished difference Result 1891 states and 2615 transitions. [2022-07-22 18:44:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:44,015 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:44,022 INFO L225 Difference]: With dead ends: 1891 [2022-07-22 18:44:44,022 INFO L226 Difference]: Without dead ends: 1718 [2022-07-22 18:44:44,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-22 18:44:44,024 INFO L413 NwaCegarLoop]: 781 mSDtfsCounter, 3662 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 2486 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3662 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 2548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:44,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3662 Valid, 3258 Invalid, 2548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2486 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-22 18:44:44,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-22 18:44:44,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3783482142857142) internal successors, (1235), 917 states have internal predecessors, (1235), 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) [2022-07-22 18:44:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1235 transitions. [2022-07-22 18:44:44,228 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1235 transitions. Word has length 96 [2022-07-22 18:44:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:44,229 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1235 transitions. [2022-07-22 18:44:44,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1235 transitions. [2022-07-22 18:44:44,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:44,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:44,230 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] [2022-07-22 18:44:44,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-22 18:44:44,230 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:44,230 INFO L85 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2022-07-22 18:44:44,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:44,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475309093] [2022-07-22 18:44:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:44,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:44,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:44,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475309093] [2022-07-22 18:44:44,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475309093] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:44,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:44,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:44,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896071138] [2022-07-22 18:44:44,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:44,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:44,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:44,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:44,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:44,347 INFO L87 Difference]: Start difference. First operand 918 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:46,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:46,012 INFO L93 Difference]: Finished difference Result 1842 states and 2546 transitions. [2022-07-22 18:44:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:46,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:46,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:46,015 INFO L225 Difference]: With dead ends: 1842 [2022-07-22 18:44:46,016 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:46,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:46,017 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 3646 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 3643 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:46,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 3643 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:44:46,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:46,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:44:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3772321428571428) internal successors, (1234), 917 states have internal predecessors, (1234), 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) [2022-07-22 18:44:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1234 transitions. [2022-07-22 18:44:46,197 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1234 transitions. Word has length 96 [2022-07-22 18:44:46,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:46,197 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1234 transitions. [2022-07-22 18:44:46,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1234 transitions. [2022-07-22 18:44:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:46,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:46,198 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] [2022-07-22 18:44:46,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-22 18:44:46,199 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:46,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:46,199 INFO L85 PathProgramCache]: Analyzing trace with hash -872854485, now seen corresponding path program 1 times [2022-07-22 18:44:46,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:46,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664495777] [2022-07-22 18:44:46,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:46,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:46,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:46,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:46,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664495777] [2022-07-22 18:44:46,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664495777] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:46,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:46,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:46,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361087244] [2022-07-22 18:44:46,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:46,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:46,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:46,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:46,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:46,298 INFO L87 Difference]: Start difference. First operand 918 states and 1234 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:47,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:47,589 INFO L93 Difference]: Finished difference Result 1651 states and 2240 transitions. [2022-07-22 18:44:47,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:47,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:47,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:47,593 INFO L225 Difference]: With dead ends: 1651 [2022-07-22 18:44:47,593 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:44:47,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:47,595 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 3400 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 1832 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3400 SdHoareTripleChecker+Valid, 2234 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:47,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3400 Valid, 2234 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1832 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:44:47,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:44:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:44:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3761160714285714) internal successors, (1233), 917 states have internal predecessors, (1233), 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) [2022-07-22 18:44:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1233 transitions. [2022-07-22 18:44:47,833 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1233 transitions. Word has length 96 [2022-07-22 18:44:47,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:47,834 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1233 transitions. [2022-07-22 18:44:47,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:47,834 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1233 transitions. [2022-07-22 18:44:47,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:47,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:47,835 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] [2022-07-22 18:44:47,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-22 18:44:47,835 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:47,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:47,835 INFO L85 PathProgramCache]: Analyzing trace with hash -35876805, now seen corresponding path program 1 times [2022-07-22 18:44:47,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:47,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183309005] [2022-07-22 18:44:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:47,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:47,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:48,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:48,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:48,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183309005] [2022-07-22 18:44:48,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183309005] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:48,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:48,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:44:48,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982021912] [2022-07-22 18:44:48,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:48,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:44:48,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:48,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:44:48,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:44:48,017 INFO L87 Difference]: Start difference. First operand 918 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2022-07-22 18:44:50,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:50,797 INFO L93 Difference]: Finished difference Result 2754 states and 3874 transitions. [2022-07-22 18:44:50,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:44:50,798 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:50,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:50,803 INFO L225 Difference]: With dead ends: 2754 [2022-07-22 18:44:50,803 INFO L226 Difference]: Without dead ends: 2598 [2022-07-22 18:44:50,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:44:50,804 INFO L413 NwaCegarLoop]: 753 mSDtfsCounter, 5898 mSDsluCounter, 2950 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 609 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5898 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 609 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:50,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5898 Valid, 3703 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [609 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 18:44:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2598 states. [2022-07-22 18:44:51,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2598 to 922. [2022-07-22 18:44:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3744444444444444) internal successors, (1237), 921 states have internal predecessors, (1237), 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) [2022-07-22 18:44:51,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1237 transitions. [2022-07-22 18:44:51,036 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1237 transitions. Word has length 96 [2022-07-22 18:44:51,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:51,036 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1237 transitions. [2022-07-22 18:44:51,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.0) internal successors, (96), 11 states have internal predecessors, (96), 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) [2022-07-22 18:44:51,037 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1237 transitions. [2022-07-22 18:44:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-22 18:44:51,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:51,038 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] [2022-07-22 18:44:51,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-22 18:44:51,039 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:51,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:51,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2022-07-22 18:44:51,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:51,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319190888] [2022-07-22 18:44:51,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:51,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:51,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:51,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319190888] [2022-07-22 18:44:51,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319190888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:51,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:51,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475914639] [2022-07-22 18:44:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:51,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:51,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:51,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:51,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:51,173 INFO L87 Difference]: Start difference. First operand 922 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:52,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:52,753 INFO L93 Difference]: Finished difference Result 1841 states and 2541 transitions. [2022-07-22 18:44:52,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:52,753 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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 96 [2022-07-22 18:44:52,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:52,756 INFO L225 Difference]: With dead ends: 1841 [2022-07-22 18:44:52,756 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:52,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:52,757 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 3749 mSDsluCounter, 2743 mSDsCounter, 0 mSdLazyCounter, 2571 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3749 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:52,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3749 Valid, 3405 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2571 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:52,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:52,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 922. [2022-07-22 18:44:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3733333333333333) internal successors, (1236), 921 states have internal predecessors, (1236), 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) [2022-07-22 18:44:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1236 transitions. [2022-07-22 18:44:52,960 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1236 transitions. Word has length 96 [2022-07-22 18:44:52,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:52,961 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1236 transitions. [2022-07-22 18:44:52,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 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) [2022-07-22 18:44:52,961 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1236 transitions. [2022-07-22 18:44:52,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 18:44:52,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:52,962 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] [2022-07-22 18:44:52,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-22 18:44:52,963 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:52,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:52,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1446549018, now seen corresponding path program 1 times [2022-07-22 18:44:52,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:52,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805874687] [2022-07-22 18:44:52,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:52,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:52,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:53,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:53,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805874687] [2022-07-22 18:44:53,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805874687] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:53,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:53,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:53,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982428286] [2022-07-22 18:44:53,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:53,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:53,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:53,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:53,065 INFO L87 Difference]: Start difference. First operand 922 states and 1236 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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) [2022-07-22 18:44:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:54,558 INFO L93 Difference]: Finished difference Result 1852 states and 2553 transitions. [2022-07-22 18:44:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:54,558 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-22 18:44:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:54,561 INFO L225 Difference]: With dead ends: 1852 [2022-07-22 18:44:54,561 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:54,562 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 [2022-07-22 18:44:54,563 INFO L413 NwaCegarLoop]: 730 mSDtfsCounter, 3966 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 2288 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 2404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 2288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:54,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3966 Valid, 2965 Invalid, 2404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 2288 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 914. [2022-07-22 18:44:54,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3744394618834082) internal successors, (1226), 913 states have internal predecessors, (1226), 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) [2022-07-22 18:44:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1226 transitions. [2022-07-22 18:44:54,776 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1226 transitions. Word has length 97 [2022-07-22 18:44:54,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:54,777 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1226 transitions. [2022-07-22 18:44:54,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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) [2022-07-22 18:44:54,777 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1226 transitions. [2022-07-22 18:44:54,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-22 18:44:54,778 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:54,778 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] [2022-07-22 18:44:54,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-22 18:44:54,778 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:54,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:54,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1542766093, now seen corresponding path program 1 times [2022-07-22 18:44:54,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:54,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241311253] [2022-07-22 18:44:54,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:54,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:54,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:54,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:54,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241311253] [2022-07-22 18:44:54,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241311253] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:54,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:54,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:54,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23137341] [2022-07-22 18:44:54,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:54,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:54,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:54,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:54,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:54,874 INFO L87 Difference]: Start difference. First operand 914 states and 1226 transitions. Second operand has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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) [2022-07-22 18:44:56,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:56,521 INFO L93 Difference]: Finished difference Result 1842 states and 2539 transitions. [2022-07-22 18:44:56,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:56,522 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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 97 [2022-07-22 18:44:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:56,524 INFO L225 Difference]: With dead ends: 1842 [2022-07-22 18:44:56,524 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:44:56,525 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 [2022-07-22 18:44:56,525 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 2810 mSDsluCounter, 2385 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 3167 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:56,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 3167 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:44:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:44:56,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-07-22 18:44:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.375) internal successors, (1221), 909 states have internal predecessors, (1221), 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) [2022-07-22 18:44:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1221 transitions. [2022-07-22 18:44:56,746 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1221 transitions. Word has length 97 [2022-07-22 18:44:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:56,746 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1221 transitions. [2022-07-22 18:44:56,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.777777777777779) internal successors, (97), 8 states have internal predecessors, (97), 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) [2022-07-22 18:44:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1221 transitions. [2022-07-22 18:44:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:44:56,747 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:56,747 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] [2022-07-22 18:44:56,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-22 18:44:56,747 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2022-07-22 18:44:56,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:56,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986996983] [2022-07-22 18:44:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:56,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:56,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:56,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986996983] [2022-07-22 18:44:56,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986996983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:56,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:56,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:44:56,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721965866] [2022-07-22 18:44:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:56,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:44:56,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:56,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:44:56,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:44:56,858 INFO L87 Difference]: Start difference. First operand 910 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:44:58,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:44:58,396 INFO L93 Difference]: Finished difference Result 1794 states and 2451 transitions. [2022-07-22 18:44:58,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:44:58,397 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:44:58,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:44:58,399 INFO L225 Difference]: With dead ends: 1794 [2022-07-22 18:44:58,399 INFO L226 Difference]: Without dead ends: 1638 [2022-07-22 18:44:58,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:44:58,400 INFO L413 NwaCegarLoop]: 559 mSDtfsCounter, 3814 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3814 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 2462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:44:58,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3814 Valid, 2888 Invalid, 2462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:44:58,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-22 18:44:58,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-22 18:44:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3727477477477477) internal successors, (1219), 909 states have internal predecessors, (1219), 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) [2022-07-22 18:44:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1219 transitions. [2022-07-22 18:44:58,568 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1219 transitions. Word has length 98 [2022-07-22 18:44:58,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:44:58,568 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1219 transitions. [2022-07-22 18:44:58,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:44:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1219 transitions. [2022-07-22 18:44:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:44:58,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:44:58,570 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] [2022-07-22 18:44:58,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-22 18:44:58,570 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:44:58,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:44:58,570 INFO L85 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2022-07-22 18:44:58,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:44:58,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402432832] [2022-07-22 18:44:58,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:44:58,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:44:58,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:44:58,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:44:58,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:44:58,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402432832] [2022-07-22 18:44:58,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402432832] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:44:58,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:44:58,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:44:58,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270404497] [2022-07-22 18:44:58,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:44:58,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:44:58,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:44:58,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:44:58,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:44:58,756 INFO L87 Difference]: Start difference. First operand 910 states and 1219 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:01,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:01,743 INFO L93 Difference]: Finished difference Result 2786 states and 3903 transitions. [2022-07-22 18:45:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:01,744 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:01,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:01,747 INFO L225 Difference]: With dead ends: 2786 [2022-07-22 18:45:01,747 INFO L226 Difference]: Without dead ends: 2614 [2022-07-22 18:45:01,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:45:01,748 INFO L413 NwaCegarLoop]: 769 mSDtfsCounter, 6948 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 3249 mSolverCounterSat, 708 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6948 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 3957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 708 IncrementalHoareTripleChecker+Valid, 3249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:01,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6948 Valid, 4103 Invalid, 3957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [708 Valid, 3249 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-22 18:45:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2614 states. [2022-07-22 18:45:01,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2614 to 918. [2022-07-22 18:45:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3694196428571428) internal successors, (1227), 917 states have internal predecessors, (1227), 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) [2022-07-22 18:45:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1227 transitions. [2022-07-22 18:45:01,961 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1227 transitions. Word has length 98 [2022-07-22 18:45:01,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:01,961 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1227 transitions. [2022-07-22 18:45:01,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1227 transitions. [2022-07-22 18:45:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:01,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:01,963 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] [2022-07-22 18:45:01,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-22 18:45:01,963 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:01,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:01,963 INFO L85 PathProgramCache]: Analyzing trace with hash 385217934, now seen corresponding path program 1 times [2022-07-22 18:45:01,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:01,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330624160] [2022-07-22 18:45:01,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:01,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:02,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:02,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330624160] [2022-07-22 18:45:02,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330624160] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:02,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:02,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:02,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513316606] [2022-07-22 18:45:02,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:02,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:02,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:02,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:02,078 INFO L87 Difference]: Start difference. First operand 918 states and 1227 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:03,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:03,725 INFO L93 Difference]: Finished difference Result 1856 states and 2548 transitions. [2022-07-22 18:45:03,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:03,726 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:03,727 INFO L225 Difference]: With dead ends: 1856 [2022-07-22 18:45:03,727 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:45:03,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:03,728 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 4113 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 2514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:03,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 3254 Invalid, 2514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:45:03,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:45:03,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:45:03,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3671875) internal successors, (1225), 917 states have internal predecessors, (1225), 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) [2022-07-22 18:45:03,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1225 transitions. [2022-07-22 18:45:03,911 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1225 transitions. Word has length 98 [2022-07-22 18:45:03,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:03,911 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1225 transitions. [2022-07-22 18:45:03,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:03,911 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1225 transitions. [2022-07-22 18:45:03,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:03,912 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:03,912 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] [2022-07-22 18:45:03,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-22 18:45:03,913 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:03,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:03,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2022-07-22 18:45:03,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:03,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171721716] [2022-07-22 18:45:03,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:03,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:04,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:04,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171721716] [2022-07-22 18:45:04,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171721716] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:04,013 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:04,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:04,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551837906] [2022-07-22 18:45:04,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:04,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:04,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:04,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:04,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:04,031 INFO L87 Difference]: Start difference. First operand 918 states and 1225 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:05,509 INFO L93 Difference]: Finished difference Result 1798 states and 2450 transitions. [2022-07-22 18:45:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:05,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:05,511 INFO L225 Difference]: With dead ends: 1798 [2022-07-22 18:45:05,511 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:05,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:05,512 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 3270 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 1893 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3270 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 2067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:05,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3270 Valid, 2348 Invalid, 2067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1893 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:05,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:05,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:05,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3649553571428572) internal successors, (1223), 917 states have internal predecessors, (1223), 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) [2022-07-22 18:45:05,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1223 transitions. [2022-07-22 18:45:05,695 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1223 transitions. Word has length 98 [2022-07-22 18:45:05,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:05,695 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1223 transitions. [2022-07-22 18:45:05,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1223 transitions. [2022-07-22 18:45:05,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:05,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:05,696 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] [2022-07-22 18:45:05,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-22 18:45:05,697 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:05,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:05,697 INFO L85 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2022-07-22 18:45:05,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:05,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084019124] [2022-07-22 18:45:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:05,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:05,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:05,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:05,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084019124] [2022-07-22 18:45:05,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084019124] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:05,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:05,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:05,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552160655] [2022-07-22 18:45:05,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:05,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:05,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:05,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:05,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:05,794 INFO L87 Difference]: Start difference. First operand 918 states and 1223 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:07,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:07,281 INFO L93 Difference]: Finished difference Result 1930 states and 2648 transitions. [2022-07-22 18:45:07,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:07,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:07,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:07,283 INFO L225 Difference]: With dead ends: 1930 [2022-07-22 18:45:07,283 INFO L226 Difference]: Without dead ends: 1718 [2022-07-22 18:45:07,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:07,284 INFO L413 NwaCegarLoop]: 790 mSDtfsCounter, 2107 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2319 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:07,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 3101 Invalid, 2353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2319 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:07,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1718 states. [2022-07-22 18:45:07,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1718 to 918. [2022-07-22 18:45:07,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3627232142857142) internal successors, (1221), 917 states have internal predecessors, (1221), 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) [2022-07-22 18:45:07,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1221 transitions. [2022-07-22 18:45:07,474 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1221 transitions. Word has length 98 [2022-07-22 18:45:07,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:07,474 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1221 transitions. [2022-07-22 18:45:07,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:07,474 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1221 transitions. [2022-07-22 18:45:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:07,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:07,476 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] [2022-07-22 18:45:07,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-22 18:45:07,476 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:07,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:07,477 INFO L85 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2022-07-22 18:45:07,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:07,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032191001] [2022-07-22 18:45:07,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:07,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:07,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:07,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:07,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:07,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032191001] [2022-07-22 18:45:07,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032191001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:07,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:07,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:07,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474711395] [2022-07-22 18:45:07,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:07,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:07,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:07,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:07,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:07,575 INFO L87 Difference]: Start difference. First operand 918 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:09,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:09,027 INFO L93 Difference]: Finished difference Result 1802 states and 2451 transitions. [2022-07-22 18:45:09,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:09,027 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:09,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:09,029 INFO L225 Difference]: With dead ends: 1802 [2022-07-22 18:45:09,029 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:09,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:09,030 INFO L413 NwaCegarLoop]: 568 mSDtfsCounter, 3266 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:09,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 2348 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:09,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3604910714285714) internal successors, (1219), 917 states have internal predecessors, (1219), 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) [2022-07-22 18:45:09,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1219 transitions. [2022-07-22 18:45:09,222 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1219 transitions. Word has length 98 [2022-07-22 18:45:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:09,223 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1219 transitions. [2022-07-22 18:45:09,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:09,223 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1219 transitions. [2022-07-22 18:45:09,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:09,224 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:09,224 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] [2022-07-22 18:45:09,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-22 18:45:09,224 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:09,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:09,225 INFO L85 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2022-07-22 18:45:09,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:09,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972504677] [2022-07-22 18:45:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:09,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:09,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:09,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972504677] [2022-07-22 18:45:09,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972504677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:09,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:09,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:09,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357858717] [2022-07-22 18:45:09,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:09,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:09,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:09,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:09,330 INFO L87 Difference]: Start difference. First operand 918 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:11,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:11,155 INFO L93 Difference]: Finished difference Result 1858 states and 2543 transitions. [2022-07-22 18:45:11,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:11,156 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:11,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:11,157 INFO L225 Difference]: With dead ends: 1858 [2022-07-22 18:45:11,158 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:45:11,158 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:11,158 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3573 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3573 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:11,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3573 Valid, 3736 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:45:11,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:45:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:45:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3582589285714286) internal successors, (1217), 917 states have internal predecessors, (1217), 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) [2022-07-22 18:45:11,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1217 transitions. [2022-07-22 18:45:11,354 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1217 transitions. Word has length 98 [2022-07-22 18:45:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:11,355 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1217 transitions. [2022-07-22 18:45:11,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:11,355 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1217 transitions. [2022-07-22 18:45:11,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:11,356 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:11,356 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] [2022-07-22 18:45:11,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-22 18:45:11,356 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:11,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:11,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2022-07-22 18:45:11,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:11,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101958614] [2022-07-22 18:45:11,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:11,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:11,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101958614] [2022-07-22 18:45:11,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101958614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:11,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:11,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:11,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186054387] [2022-07-22 18:45:11,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:11,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:11,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:11,462 INFO L87 Difference]: Start difference. First operand 918 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:12,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:12,954 INFO L93 Difference]: Finished difference Result 1798 states and 2442 transitions. [2022-07-22 18:45:12,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:12,955 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:12,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:12,957 INFO L225 Difference]: With dead ends: 1798 [2022-07-22 18:45:12,958 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:12,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:12,959 INFO L413 NwaCegarLoop]: 632 mSDtfsCounter, 2149 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2149 SdHoareTripleChecker+Valid, 2606 SdHoareTripleChecker+Invalid, 2203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:12,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2149 Valid, 2606 Invalid, 2203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2091 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:12,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3560267857142858) internal successors, (1215), 917 states have internal predecessors, (1215), 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) [2022-07-22 18:45:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1215 transitions. [2022-07-22 18:45:13,194 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1215 transitions. Word has length 98 [2022-07-22 18:45:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:13,194 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1215 transitions. [2022-07-22 18:45:13,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1215 transitions. [2022-07-22 18:45:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:13,196 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:13,196 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] [2022-07-22 18:45:13,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-22 18:45:13,196 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:13,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1885152984, now seen corresponding path program 1 times [2022-07-22 18:45:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:13,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896309874] [2022-07-22 18:45:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:13,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:13,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:13,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896309874] [2022-07-22 18:45:13,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896309874] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:13,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:13,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:13,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668566208] [2022-07-22 18:45:13,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:13,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:13,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:13,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:13,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:13,295 INFO L87 Difference]: Start difference. First operand 918 states and 1215 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:14,828 INFO L93 Difference]: Finished difference Result 1651 states and 2220 transitions. [2022-07-22 18:45:14,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:14,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:14,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:14,831 INFO L225 Difference]: With dead ends: 1651 [2022-07-22 18:45:14,831 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:14,832 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 [2022-07-22 18:45:14,839 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 2038 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 2770 SdHoareTripleChecker+Invalid, 2348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:14,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 2770 Invalid, 2348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:45:14,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:15,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3537946428571428) internal successors, (1213), 917 states have internal predecessors, (1213), 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) [2022-07-22 18:45:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1213 transitions. [2022-07-22 18:45:15,046 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1213 transitions. Word has length 98 [2022-07-22 18:45:15,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:15,048 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1213 transitions. [2022-07-22 18:45:15,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:15,048 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1213 transitions. [2022-07-22 18:45:15,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:15,049 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:15,050 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] [2022-07-22 18:45:15,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-22 18:45:15,050 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:15,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:15,051 INFO L85 PathProgramCache]: Analyzing trace with hash -495518324, now seen corresponding path program 1 times [2022-07-22 18:45:15,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:15,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874982849] [2022-07-22 18:45:15,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:15,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:15,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874982849] [2022-07-22 18:45:15,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874982849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:15,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:15,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:15,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715599412] [2022-07-22 18:45:15,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:15,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:15,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:15,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:15,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:15,183 INFO L87 Difference]: Start difference. First operand 918 states and 1213 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:16,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:16,683 INFO L93 Difference]: Finished difference Result 1798 states and 2436 transitions. [2022-07-22 18:45:16,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:16,683 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:16,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:16,685 INFO L225 Difference]: With dead ends: 1798 [2022-07-22 18:45:16,685 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:16,686 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 [2022-07-22 18:45:16,686 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 3102 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 2574 SdHoareTripleChecker+Invalid, 2207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:16,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 2574 Invalid, 2207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:16,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:16,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3515625) internal successors, (1211), 917 states have internal predecessors, (1211), 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) [2022-07-22 18:45:16,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1211 transitions. [2022-07-22 18:45:16,895 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1211 transitions. Word has length 98 [2022-07-22 18:45:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:16,895 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1211 transitions. [2022-07-22 18:45:16,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1211 transitions. [2022-07-22 18:45:16,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:16,896 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:16,897 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] [2022-07-22 18:45:16,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-22 18:45:16,897 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:16,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:16,897 INFO L85 PathProgramCache]: Analyzing trace with hash -2030828310, now seen corresponding path program 1 times [2022-07-22 18:45:16,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:16,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434227095] [2022-07-22 18:45:16,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:16,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:16,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:16,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:16,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434227095] [2022-07-22 18:45:16,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434227095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:16,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:16,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:16,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466581113] [2022-07-22 18:45:16,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:16,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:16,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:16,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:16,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:16,987 INFO L87 Difference]: Start difference. First operand 918 states and 1211 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:18,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:18,570 INFO L93 Difference]: Finished difference Result 1794 states and 2428 transitions. [2022-07-22 18:45:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:18,572 INFO L225 Difference]: With dead ends: 1794 [2022-07-22 18:45:18,572 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:18,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:18,573 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3587 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 1881 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3587 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 2088 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:18,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3587 Valid, 2400 Invalid, 2088 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1881 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:18,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3493303571428572) internal successors, (1209), 917 states have internal predecessors, (1209), 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) [2022-07-22 18:45:18,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1209 transitions. [2022-07-22 18:45:18,824 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1209 transitions. Word has length 98 [2022-07-22 18:45:18,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:18,824 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1209 transitions. [2022-07-22 18:45:18,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:18,825 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1209 transitions. [2022-07-22 18:45:18,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:18,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:18,826 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] [2022-07-22 18:45:18,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-22 18:45:18,826 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:18,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:18,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1081413880, now seen corresponding path program 1 times [2022-07-22 18:45:18,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:18,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535138068] [2022-07-22 18:45:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:18,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:18,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:18,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535138068] [2022-07-22 18:45:18,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535138068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:18,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:18,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:18,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047031429] [2022-07-22 18:45:18,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:18,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:18,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:18,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:18,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:18,914 INFO L87 Difference]: Start difference. First operand 918 states and 1209 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:20,406 INFO L93 Difference]: Finished difference Result 1651 states and 2210 transitions. [2022-07-22 18:45:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:20,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:20,408 INFO L225 Difference]: With dead ends: 1651 [2022-07-22 18:45:20,408 INFO L226 Difference]: Without dead ends: 1646 [2022-07-22 18:45:20,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:20,409 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 4177 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4177 SdHoareTripleChecker+Valid, 2401 SdHoareTripleChecker+Invalid, 2103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:20,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4177 Valid, 2401 Invalid, 2103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:20,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-07-22 18:45:20,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-07-22 18:45:20,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3470982142857142) internal successors, (1207), 917 states have internal predecessors, (1207), 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) [2022-07-22 18:45:20,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1207 transitions. [2022-07-22 18:45:20,624 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1207 transitions. Word has length 98 [2022-07-22 18:45:20,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:20,624 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1207 transitions. [2022-07-22 18:45:20,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:20,624 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1207 transitions. [2022-07-22 18:45:20,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:20,625 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:20,625 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] [2022-07-22 18:45:20,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-22 18:45:20,625 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:20,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:20,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1301356314, now seen corresponding path program 1 times [2022-07-22 18:45:20,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:20,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658215233] [2022-07-22 18:45:20,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:20,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:20,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:20,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:20,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:20,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658215233] [2022-07-22 18:45:20,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658215233] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:20,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:20,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:45:20,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380529003] [2022-07-22 18:45:20,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:20,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:45:20,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:20,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:45:20,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:45:20,783 INFO L87 Difference]: Start difference. First operand 918 states and 1207 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:23,898 INFO L93 Difference]: Finished difference Result 2624 states and 3631 transitions. [2022-07-22 18:45:23,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:23,899 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:23,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:23,901 INFO L225 Difference]: With dead ends: 2624 [2022-07-22 18:45:23,901 INFO L226 Difference]: Without dead ends: 2607 [2022-07-22 18:45:23,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:45:23,902 INFO L413 NwaCegarLoop]: 786 mSDtfsCounter, 6816 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 2632 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6816 SdHoareTripleChecker+Valid, 3434 SdHoareTripleChecker+Invalid, 3321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 2632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:23,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6816 Valid, 3434 Invalid, 3321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 2632 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 18:45:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2022-07-22 18:45:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 926. [2022-07-22 18:45:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3440265486725664) internal successors, (1215), 925 states have internal predecessors, (1215), 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) [2022-07-22 18:45:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1215 transitions. [2022-07-22 18:45:24,127 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1215 transitions. Word has length 98 [2022-07-22 18:45:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:24,127 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1215 transitions. [2022-07-22 18:45:24,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1215 transitions. [2022-07-22 18:45:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:24,128 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:24,128 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] [2022-07-22 18:45:24,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-22 18:45:24,128 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:24,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:24,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1591996391, now seen corresponding path program 1 times [2022-07-22 18:45:24,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:24,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180494707] [2022-07-22 18:45:24,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:24,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:24,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:24,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:24,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180494707] [2022-07-22 18:45:24,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180494707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:24,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:24,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:24,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727716191] [2022-07-22 18:45:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:24,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:24,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:24,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:24,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:24,217 INFO L87 Difference]: Start difference. First operand 926 states and 1215 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:25,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:25,705 INFO L93 Difference]: Finished difference Result 1806 states and 2436 transitions. [2022-07-22 18:45:25,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:25,705 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:25,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:25,707 INFO L225 Difference]: With dead ends: 1806 [2022-07-22 18:45:25,707 INFO L226 Difference]: Without dead ends: 1654 [2022-07-22 18:45:25,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:25,708 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 2235 mSDsluCounter, 1823 mSDsCounter, 0 mSdLazyCounter, 1868 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:25,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 2404 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1868 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 18:45:25,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-22 18:45:25,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 926. [2022-07-22 18:45:25,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3418141592920354) internal successors, (1213), 925 states have internal predecessors, (1213), 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) [2022-07-22 18:45:25,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1213 transitions. [2022-07-22 18:45:25,965 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1213 transitions. Word has length 98 [2022-07-22 18:45:25,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:25,965 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1213 transitions. [2022-07-22 18:45:25,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:25,965 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1213 transitions. [2022-07-22 18:45:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:25,966 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:25,966 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] [2022-07-22 18:45:25,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-22 18:45:25,967 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:25,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:25,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1028777306, now seen corresponding path program 1 times [2022-07-22 18:45:25,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:25,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343616230] [2022-07-22 18:45:25,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:25,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:25,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:26,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:26,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:26,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343616230] [2022-07-22 18:45:26,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343616230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:26,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:26,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:26,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042399263] [2022-07-22 18:45:26,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:26,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:26,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:26,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:26,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:26,069 INFO L87 Difference]: Start difference. First operand 926 states and 1213 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:27,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:27,928 INFO L93 Difference]: Finished difference Result 1852 states and 2512 transitions. [2022-07-22 18:45:27,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:27,929 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:27,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:27,931 INFO L225 Difference]: With dead ends: 1852 [2022-07-22 18:45:27,931 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:45:27,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:27,932 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 3559 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3559 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 2799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:27,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3559 Valid, 3681 Invalid, 2799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:45:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:45:28,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 926. [2022-07-22 18:45:28,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3396017699115044) internal successors, (1211), 925 states have internal predecessors, (1211), 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) [2022-07-22 18:45:28,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1211 transitions. [2022-07-22 18:45:28,166 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1211 transitions. Word has length 98 [2022-07-22 18:45:28,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:28,166 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1211 transitions. [2022-07-22 18:45:28,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:28,166 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1211 transitions. [2022-07-22 18:45:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:28,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:28,168 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] [2022-07-22 18:45:28,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-22 18:45:28,168 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:28,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:28,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1596017491, now seen corresponding path program 1 times [2022-07-22 18:45:28,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:28,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438399913] [2022-07-22 18:45:28,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:28,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:28,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:28,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:28,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:28,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438399913] [2022-07-22 18:45:28,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438399913] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:28,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:28,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:28,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019911508] [2022-07-22 18:45:28,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:28,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:28,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:28,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:28,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:28,272 INFO L87 Difference]: Start difference. First operand 926 states and 1211 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:29,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:29,947 INFO L93 Difference]: Finished difference Result 1807 states and 2433 transitions. [2022-07-22 18:45:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:29,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:29,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:29,949 INFO L225 Difference]: With dead ends: 1807 [2022-07-22 18:45:29,949 INFO L226 Difference]: Without dead ends: 1654 [2022-07-22 18:45:29,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:29,950 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 3712 mSDsluCounter, 2419 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3712 SdHoareTripleChecker+Valid, 3008 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:29,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3712 Valid, 3008 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2276 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:45:29,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-07-22 18:45:30,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 926. [2022-07-22 18:45:30,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3384955752212389) internal successors, (1210), 925 states have internal predecessors, (1210), 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) [2022-07-22 18:45:30,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1210 transitions. [2022-07-22 18:45:30,185 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1210 transitions. Word has length 98 [2022-07-22 18:45:30,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:30,185 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1210 transitions. [2022-07-22 18:45:30,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:30,186 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1210 transitions. [2022-07-22 18:45:30,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:30,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:30,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:45:30,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-22 18:45:30,187 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:30,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:30,187 INFO L85 PathProgramCache]: Analyzing trace with hash 316179611, now seen corresponding path program 1 times [2022-07-22 18:45:30,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:30,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256819928] [2022-07-22 18:45:30,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:30,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:30,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256819928] [2022-07-22 18:45:30,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256819928] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:30,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:30,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:45:30,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554261387] [2022-07-22 18:45:30,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:30,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:45:30,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:30,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:45:30,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:45:30,331 INFO L87 Difference]: Start difference. First operand 926 states and 1210 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:33,482 INFO L93 Difference]: Finished difference Result 2772 states and 3845 transitions. [2022-07-22 18:45:33,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:33,483 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:33,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:33,485 INFO L225 Difference]: With dead ends: 2772 [2022-07-22 18:45:33,486 INFO L226 Difference]: Without dead ends: 2607 [2022-07-22 18:45:33,486 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 [2022-07-22 18:45:33,487 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 5785 mSDsluCounter, 2618 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5785 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 3181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:33,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5785 Valid, 3393 Invalid, 3181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-22 18:45:33,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2607 states. [2022-07-22 18:45:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2607 to 930. [2022-07-22 18:45:33,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 908 states have (on average 1.3370044052863437) internal successors, (1214), 929 states have internal predecessors, (1214), 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) [2022-07-22 18:45:33,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1214 transitions. [2022-07-22 18:45:33,733 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1214 transitions. Word has length 98 [2022-07-22 18:45:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:33,734 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1214 transitions. [2022-07-22 18:45:33,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1214 transitions. [2022-07-22 18:45:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:33,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:33,735 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] [2022-07-22 18:45:33,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-22 18:45:33,735 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:33,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1085915592, now seen corresponding path program 1 times [2022-07-22 18:45:33,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:33,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928420736] [2022-07-22 18:45:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:33,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:33,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:33,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928420736] [2022-07-22 18:45:33,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928420736] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:33,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:33,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:33,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376767444] [2022-07-22 18:45:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:33,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:33,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:33,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:33,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:33,821 INFO L87 Difference]: Start difference. First operand 930 states and 1214 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:35,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:35,535 INFO L93 Difference]: Finished difference Result 1808 states and 2433 transitions. [2022-07-22 18:45:35,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:35,536 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:35,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:35,538 INFO L225 Difference]: With dead ends: 1808 [2022-07-22 18:45:35,538 INFO L226 Difference]: Without dead ends: 1658 [2022-07-22 18:45:35,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:35,539 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2982 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2982 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:35,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2982 Valid, 2618 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:45:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2022-07-22 18:45:35,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 930. [2022-07-22 18:45:35,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 930 states, 908 states have (on average 1.3359030837004404) internal successors, (1213), 929 states have internal predecessors, (1213), 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) [2022-07-22 18:45:35,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 930 states to 930 states and 1213 transitions. [2022-07-22 18:45:35,785 INFO L78 Accepts]: Start accepts. Automaton has 930 states and 1213 transitions. Word has length 98 [2022-07-22 18:45:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:35,785 INFO L495 AbstractCegarLoop]: Abstraction has 930 states and 1213 transitions. [2022-07-22 18:45:35,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states and 1213 transitions. [2022-07-22 18:45:35,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:35,787 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:35,787 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] [2022-07-22 18:45:35,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-22 18:45:35,787 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1943813230, now seen corresponding path program 1 times [2022-07-22 18:45:35,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:35,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156109322] [2022-07-22 18:45:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:35,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:35,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:35,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156109322] [2022-07-22 18:45:35,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156109322] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:35,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:35,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:45:35,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064959234] [2022-07-22 18:45:35,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:35,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:45:35,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:35,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:45:35,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:45:35,947 INFO L87 Difference]: Start difference. First operand 930 states and 1213 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:39,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:39,234 INFO L93 Difference]: Finished difference Result 2560 states and 3520 transitions. [2022-07-22 18:45:39,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:39,235 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:39,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:39,237 INFO L225 Difference]: With dead ends: 2560 [2022-07-22 18:45:39,237 INFO L226 Difference]: Without dead ends: 2407 [2022-07-22 18:45:39,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:45:39,238 INFO L413 NwaCegarLoop]: 650 mSDtfsCounter, 6905 mSDsluCounter, 2795 mSDsCounter, 0 mSdLazyCounter, 2761 mSolverCounterSat, 946 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6905 SdHoareTripleChecker+Valid, 3445 SdHoareTripleChecker+Invalid, 3707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 946 IncrementalHoareTripleChecker+Valid, 2761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:39,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6905 Valid, 3445 Invalid, 3707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [946 Valid, 2761 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 18:45:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2407 states. [2022-07-22 18:45:39,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2407 to 934. [2022-07-22 18:45:39,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3344298245614035) internal successors, (1217), 933 states have internal predecessors, (1217), 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) [2022-07-22 18:45:39,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1217 transitions. [2022-07-22 18:45:39,503 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1217 transitions. Word has length 98 [2022-07-22 18:45:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:39,503 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1217 transitions. [2022-07-22 18:45:39,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:39,503 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1217 transitions. [2022-07-22 18:45:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:39,504 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:39,504 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] [2022-07-22 18:45:39,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-22 18:45:39,504 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:39,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:39,505 INFO L85 PathProgramCache]: Analyzing trace with hash -1615258738, now seen corresponding path program 1 times [2022-07-22 18:45:39,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:39,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74899870] [2022-07-22 18:45:39,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:39,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:39,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:39,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:39,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:39,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74899870] [2022-07-22 18:45:39,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74899870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:39,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:39,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:45:39,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554092060] [2022-07-22 18:45:39,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:39,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:45:39,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:39,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:45:39,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:45:39,668 INFO L87 Difference]: Start difference. First operand 934 states and 1217 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:43,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:43,024 INFO L93 Difference]: Finished difference Result 2766 states and 3837 transitions. [2022-07-22 18:45:43,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:43,024 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:43,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:43,026 INFO L225 Difference]: With dead ends: 2766 [2022-07-22 18:45:43,026 INFO L226 Difference]: Without dead ends: 2606 [2022-07-22 18:45:43,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:45:43,028 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 6554 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2439 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6554 SdHoareTripleChecker+Valid, 3237 SdHoareTripleChecker+Invalid, 3062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:43,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6554 Valid, 3237 Invalid, 3062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [623 Valid, 2439 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-22 18:45:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-22 18:45:43,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 938. [2022-07-22 18:45:43,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3329694323144106) internal successors, (1221), 937 states have internal predecessors, (1221), 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) [2022-07-22 18:45:43,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1221 transitions. [2022-07-22 18:45:43,310 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1221 transitions. Word has length 98 [2022-07-22 18:45:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:43,311 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1221 transitions. [2022-07-22 18:45:43,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:43,311 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1221 transitions. [2022-07-22 18:45:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:43,312 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:43,312 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] [2022-07-22 18:45:43,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-22 18:45:43,312 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:43,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:43,312 INFO L85 PathProgramCache]: Analyzing trace with hash 472842913, now seen corresponding path program 1 times [2022-07-22 18:45:43,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:43,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094683768] [2022-07-22 18:45:43,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:43,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:43,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:43,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094683768] [2022-07-22 18:45:43,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094683768] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:43,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:43,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:43,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715213558] [2022-07-22 18:45:43,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:43,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:43,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:43,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:43,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:43,396 INFO L87 Difference]: Start difference. First operand 938 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:45,095 INFO L93 Difference]: Finished difference Result 1812 states and 2435 transitions. [2022-07-22 18:45:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:45,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:45,098 INFO L225 Difference]: With dead ends: 1812 [2022-07-22 18:45:45,098 INFO L226 Difference]: Without dead ends: 1662 [2022-07-22 18:45:45,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:45,098 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 3843 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3843 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:45,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3843 Valid, 2618 Invalid, 2280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:45,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-22 18:45:45,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-22 18:45:45,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.331877729257642) internal successors, (1220), 937 states have internal predecessors, (1220), 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) [2022-07-22 18:45:45,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1220 transitions. [2022-07-22 18:45:45,377 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1220 transitions. Word has length 98 [2022-07-22 18:45:45,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:45,378 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1220 transitions. [2022-07-22 18:45:45,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:45,378 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1220 transitions. [2022-07-22 18:45:45,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:45,379 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:45,379 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] [2022-07-22 18:45:45,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-22 18:45:45,379 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:45,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:45,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1121536989, now seen corresponding path program 1 times [2022-07-22 18:45:45,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:45,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736318815] [2022-07-22 18:45:45,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:45,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:45,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:45,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736318815] [2022-07-22 18:45:45,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736318815] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:45,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:45,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:45,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238721179] [2022-07-22 18:45:45,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:45,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:45,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:45,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:45,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:45,459 INFO L87 Difference]: Start difference. First operand 938 states and 1220 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:47,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:47,153 INFO L93 Difference]: Finished difference Result 1812 states and 2434 transitions. [2022-07-22 18:45:47,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:47,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:47,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:47,155 INFO L225 Difference]: With dead ends: 1812 [2022-07-22 18:45:47,155 INFO L226 Difference]: Without dead ends: 1662 [2022-07-22 18:45:47,156 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 [2022-07-22 18:45:47,156 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3064 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3064 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:47,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3064 Valid, 2581 Invalid, 2187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:47,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-22 18:45:47,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-22 18:45:47,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3307860262008733) internal successors, (1219), 937 states have internal predecessors, (1219), 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) [2022-07-22 18:45:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1219 transitions. [2022-07-22 18:45:47,460 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1219 transitions. Word has length 98 [2022-07-22 18:45:47,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:47,460 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1219 transitions. [2022-07-22 18:45:47,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1219 transitions. [2022-07-22 18:45:47,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:47,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:47,462 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] [2022-07-22 18:45:47,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-22 18:45:47,462 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1773163569, now seen corresponding path program 1 times [2022-07-22 18:45:47,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:47,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290894549] [2022-07-22 18:45:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:47,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:47,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:47,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290894549] [2022-07-22 18:45:47,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290894549] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:47,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:47,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:47,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513821194] [2022-07-22 18:45:47,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:47,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:47,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:47,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:47,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:47,555 INFO L87 Difference]: Start difference. First operand 938 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:49,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:49,327 INFO L93 Difference]: Finished difference Result 1810 states and 2430 transitions. [2022-07-22 18:45:49,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:49,327 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:49,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:49,329 INFO L225 Difference]: With dead ends: 1810 [2022-07-22 18:45:49,329 INFO L226 Difference]: Without dead ends: 1662 [2022-07-22 18:45:49,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:49,330 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2977 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 2618 SdHoareTripleChecker+Invalid, 2211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:49,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 2618 Invalid, 2211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:49,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-22 18:45:49,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-22 18:45:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3296943231441047) internal successors, (1218), 937 states have internal predecessors, (1218), 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) [2022-07-22 18:45:49,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1218 transitions. [2022-07-22 18:45:49,604 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1218 transitions. Word has length 98 [2022-07-22 18:45:49,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:49,604 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1218 transitions. [2022-07-22 18:45:49,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:49,604 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1218 transitions. [2022-07-22 18:45:49,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:49,605 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:49,605 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:45:49,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-22 18:45:49,605 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:49,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1664858732, now seen corresponding path program 1 times [2022-07-22 18:45:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:49,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289317084] [2022-07-22 18:45:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:49,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:49,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:49,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:49,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289317084] [2022-07-22 18:45:49,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289317084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:49,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:49,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:49,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522611256] [2022-07-22 18:45:49,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:49,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:49,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:49,688 INFO L87 Difference]: Start difference. First operand 938 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:51,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:51,349 INFO L93 Difference]: Finished difference Result 1812 states and 2431 transitions. [2022-07-22 18:45:51,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:51,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:51,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:51,351 INFO L225 Difference]: With dead ends: 1812 [2022-07-22 18:45:51,351 INFO L226 Difference]: Without dead ends: 1662 [2022-07-22 18:45:51,351 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 [2022-07-22 18:45:51,352 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2105 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2105 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 2108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:51,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2105 Valid, 2590 Invalid, 2108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:51,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-22 18:45:51,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-22 18:45:51,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3286026200873362) internal successors, (1217), 937 states have internal predecessors, (1217), 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) [2022-07-22 18:45:51,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1217 transitions. [2022-07-22 18:45:51,642 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1217 transitions. Word has length 98 [2022-07-22 18:45:51,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:51,642 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1217 transitions. [2022-07-22 18:45:51,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:51,642 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1217 transitions. [2022-07-22 18:45:51,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:51,643 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:51,643 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] [2022-07-22 18:45:51,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-22 18:45:51,643 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:51,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1981414488, now seen corresponding path program 1 times [2022-07-22 18:45:51,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:51,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013110128] [2022-07-22 18:45:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:51,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:51,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013110128] [2022-07-22 18:45:51,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013110128] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:51,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:51,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:51,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375103673] [2022-07-22 18:45:51,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:51,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:51,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:51,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:51,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:51,726 INFO L87 Difference]: Start difference. First operand 938 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:53,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:53,378 INFO L93 Difference]: Finished difference Result 1812 states and 2429 transitions. [2022-07-22 18:45:53,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:53,378 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:53,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:53,380 INFO L225 Difference]: With dead ends: 1812 [2022-07-22 18:45:53,380 INFO L226 Difference]: Without dead ends: 1662 [2022-07-22 18:45:53,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:45:53,381 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3162 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3162 SdHoareTripleChecker+Valid, 2420 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:53,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3162 Valid, 2420 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2022-07-22 18:45:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 938. [2022-07-22 18:45:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 938 states, 916 states have (on average 1.3275109170305677) internal successors, (1216), 937 states have internal predecessors, (1216), 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) [2022-07-22 18:45:53,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 1216 transitions. [2022-07-22 18:45:53,673 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 1216 transitions. Word has length 98 [2022-07-22 18:45:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:53,674 INFO L495 AbstractCegarLoop]: Abstraction has 938 states and 1216 transitions. [2022-07-22 18:45:53,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:53,674 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1216 transitions. [2022-07-22 18:45:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:53,675 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:53,675 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] [2022-07-22 18:45:53,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-22 18:45:53,676 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash -638543956, now seen corresponding path program 1 times [2022-07-22 18:45:53,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:53,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945564283] [2022-07-22 18:45:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:53,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:53,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:53,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945564283] [2022-07-22 18:45:53,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945564283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:53,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:53,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:45:53,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275260635] [2022-07-22 18:45:53,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:53,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:45:53,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:53,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:45:53,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:45:53,830 INFO L87 Difference]: Start difference. First operand 938 states and 1216 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:57,534 INFO L93 Difference]: Finished difference Result 2766 states and 3827 transitions. [2022-07-22 18:45:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:45:57,534 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:57,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:57,537 INFO L225 Difference]: With dead ends: 2766 [2022-07-22 18:45:57,537 INFO L226 Difference]: Without dead ends: 2606 [2022-07-22 18:45:57,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:45:57,538 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 5889 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 4401 SdHoareTripleChecker+Invalid, 4031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 677 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:57,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5889 Valid, 4401 Invalid, 4031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [677 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-22 18:45:57,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2022-07-22 18:45:57,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 942. [2022-07-22 18:45:57,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.326086956521739) internal successors, (1220), 941 states have internal predecessors, (1220), 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) [2022-07-22 18:45:57,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1220 transitions. [2022-07-22 18:45:57,842 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1220 transitions. Word has length 98 [2022-07-22 18:45:57,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:57,842 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1220 transitions. [2022-07-22 18:45:57,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 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) [2022-07-22 18:45:57,842 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1220 transitions. [2022-07-22 18:45:57,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:57,843 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:57,843 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] [2022-07-22 18:45:57,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-22 18:45:57,843 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:57,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:57,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1793097480, now seen corresponding path program 1 times [2022-07-22 18:45:57,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:57,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364681129] [2022-07-22 18:45:57,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:57,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:45:57,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:45:57,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:45:57,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364681129] [2022-07-22 18:45:57,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364681129] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:45:57,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:45:57,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:45:57,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020574670] [2022-07-22 18:45:57,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:45:57,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:45:57,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:45:57,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:45:57,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:45:57,927 INFO L87 Difference]: Start difference. First operand 942 states and 1220 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:59,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:45:59,652 INFO L93 Difference]: Finished difference Result 1816 states and 2432 transitions. [2022-07-22 18:45:59,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:45:59,653 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:45:59,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:45:59,655 INFO L225 Difference]: With dead ends: 1816 [2022-07-22 18:45:59,655 INFO L226 Difference]: Without dead ends: 1666 [2022-07-22 18:45:59,655 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 [2022-07-22 18:45:59,655 INFO L413 NwaCegarLoop]: 645 mSDtfsCounter, 2474 mSDsluCounter, 1945 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 2590 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:45:59,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 2590 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:45:59,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-22 18:45:59,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-22 18:45:59,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.325) internal successors, (1219), 941 states have internal predecessors, (1219), 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) [2022-07-22 18:45:59,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1219 transitions. [2022-07-22 18:45:59,949 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1219 transitions. Word has length 98 [2022-07-22 18:45:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:45:59,949 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1219 transitions. [2022-07-22 18:45:59,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:45:59,950 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1219 transitions. [2022-07-22 18:45:59,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:45:59,951 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:45:59,951 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] [2022-07-22 18:45:59,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-22 18:45:59,951 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:45:59,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:45:59,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1342903942, now seen corresponding path program 1 times [2022-07-22 18:45:59,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:45:59,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224179683] [2022-07-22 18:45:59,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:45:59,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:45:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:00,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:00,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:00,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224179683] [2022-07-22 18:46:00,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224179683] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:00,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:00,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:00,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425200959] [2022-07-22 18:46:00,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:00,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:00,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:00,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:00,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:00,033 INFO L87 Difference]: Start difference. First operand 942 states and 1219 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:46:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:01,775 INFO L93 Difference]: Finished difference Result 1814 states and 2428 transitions. [2022-07-22 18:46:01,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:01,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:46:01,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:01,777 INFO L225 Difference]: With dead ends: 1814 [2022-07-22 18:46:01,777 INFO L226 Difference]: Without dead ends: 1666 [2022-07-22 18:46:01,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:46:01,778 INFO L413 NwaCegarLoop]: 647 mSDtfsCounter, 2939 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 2018 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2939 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 2186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:01,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2939 Valid, 2666 Invalid, 2186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2018 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-22 18:46:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-22 18:46:02,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3239130434782609) internal successors, (1218), 941 states have internal predecessors, (1218), 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) [2022-07-22 18:46:02,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1218 transitions. [2022-07-22 18:46:02,087 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1218 transitions. Word has length 98 [2022-07-22 18:46:02,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:02,087 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1218 transitions. [2022-07-22 18:46:02,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:46:02,087 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1218 transitions. [2022-07-22 18:46:02,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-22 18:46:02,089 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:02,089 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] [2022-07-22 18:46:02,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-22 18:46:02,089 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:02,089 INFO L85 PathProgramCache]: Analyzing trace with hash 311553357, now seen corresponding path program 1 times [2022-07-22 18:46:02,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:02,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499344797] [2022-07-22 18:46:02,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:02,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:02,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:02,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499344797] [2022-07-22 18:46:02,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499344797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:02,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:02,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:02,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674077511] [2022-07-22 18:46:02,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:02,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:02,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:02,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:02,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:02,171 INFO L87 Difference]: Start difference. First operand 942 states and 1218 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:46:03,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:03,946 INFO L93 Difference]: Finished difference Result 1814 states and 2427 transitions. [2022-07-22 18:46:03,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:03,946 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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 98 [2022-07-22 18:46:03,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:03,949 INFO L225 Difference]: With dead ends: 1814 [2022-07-22 18:46:03,949 INFO L226 Difference]: Without dead ends: 1666 [2022-07-22 18:46:03,949 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 [2022-07-22 18:46:03,949 INFO L413 NwaCegarLoop]: 643 mSDtfsCounter, 3044 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:03,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 2581 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2022-07-22 18:46:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 942. [2022-07-22 18:46:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 942 states, 920 states have (on average 1.3228260869565218) internal successors, (1217), 941 states have internal predecessors, (1217), 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) [2022-07-22 18:46:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 942 states to 942 states and 1217 transitions. [2022-07-22 18:46:04,258 INFO L78 Accepts]: Start accepts. Automaton has 942 states and 1217 transitions. Word has length 98 [2022-07-22 18:46:04,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:04,258 INFO L495 AbstractCegarLoop]: Abstraction has 942 states and 1217 transitions. [2022-07-22 18:46:04,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 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) [2022-07-22 18:46:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 942 states and 1217 transitions. [2022-07-22 18:46:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:04,259 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:04,259 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] [2022-07-22 18:46:04,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-22 18:46:04,260 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:04,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:04,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1243175494, now seen corresponding path program 1 times [2022-07-22 18:46:04,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:04,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593574652] [2022-07-22 18:46:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:04,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:04,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:04,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:04,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593574652] [2022-07-22 18:46:04,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593574652] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:04,343 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:04,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:04,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492704622] [2022-07-22 18:46:04,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:04,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:04,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:04,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:04,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:04,347 INFO L87 Difference]: Start difference. First operand 942 states and 1217 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:06,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:06,082 INFO L93 Difference]: Finished difference Result 1862 states and 2505 transitions. [2022-07-22 18:46:06,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:06,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:06,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:06,084 INFO L225 Difference]: With dead ends: 1862 [2022-07-22 18:46:06,084 INFO L226 Difference]: Without dead ends: 1690 [2022-07-22 18:46:06,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:46:06,085 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 3142 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3142 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 2155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:06,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3142 Valid, 2876 Invalid, 2155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:06,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-22 18:46:06,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 934. [2022-07-22 18:46:06,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3234649122807018) internal successors, (1207), 933 states have internal predecessors, (1207), 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) [2022-07-22 18:46:06,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1207 transitions. [2022-07-22 18:46:06,385 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1207 transitions. Word has length 99 [2022-07-22 18:46:06,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:06,385 INFO L495 AbstractCegarLoop]: Abstraction has 934 states and 1207 transitions. [2022-07-22 18:46:06,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:06,386 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1207 transitions. [2022-07-22 18:46:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:06,387 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:06,387 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] [2022-07-22 18:46:06,387 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-22 18:46:06,387 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:06,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:06,388 INFO L85 PathProgramCache]: Analyzing trace with hash 358996279, now seen corresponding path program 1 times [2022-07-22 18:46:06,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:06,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074750592] [2022-07-22 18:46:06,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:06,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:06,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:06,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:06,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074750592] [2022-07-22 18:46:06,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074750592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:06,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:06,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:06,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880605342] [2022-07-22 18:46:06,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:06,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:06,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:06,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:06,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:06,478 INFO L87 Difference]: Start difference. First operand 934 states and 1207 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:08,268 INFO L93 Difference]: Finished difference Result 1707 states and 2271 transitions. [2022-07-22 18:46:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:08,268 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:08,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:08,270 INFO L225 Difference]: With dead ends: 1707 [2022-07-22 18:46:08,270 INFO L226 Difference]: Without dead ends: 1690 [2022-07-22 18:46:08,270 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 [2022-07-22 18:46:08,270 INFO L413 NwaCegarLoop]: 736 mSDtfsCounter, 2900 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2140 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2900 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 2140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:08,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2900 Valid, 2979 Invalid, 2226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 2140 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:08,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1690 states. [2022-07-22 18:46:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1690 to 926. [2022-07-22 18:46:08,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3241150442477876) internal successors, (1197), 925 states have internal predecessors, (1197), 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) [2022-07-22 18:46:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1197 transitions. [2022-07-22 18:46:08,576 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1197 transitions. Word has length 99 [2022-07-22 18:46:08,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:08,576 INFO L495 AbstractCegarLoop]: Abstraction has 926 states and 1197 transitions. [2022-07-22 18:46:08,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:08,576 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1197 transitions. [2022-07-22 18:46:08,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:08,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:08,577 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] [2022-07-22 18:46:08,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-22 18:46:08,578 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:08,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:08,578 INFO L85 PathProgramCache]: Analyzing trace with hash -137499081, now seen corresponding path program 1 times [2022-07-22 18:46:08,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:08,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832953657] [2022-07-22 18:46:08,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:08,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:08,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:08,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832953657] [2022-07-22 18:46:08,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832953657] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:08,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:08,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:08,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874527831] [2022-07-22 18:46:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:08,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:08,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:08,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:08,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:08,663 INFO L87 Difference]: Start difference. First operand 926 states and 1197 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:10,473 INFO L93 Difference]: Finished difference Result 1803 states and 2410 transitions. [2022-07-22 18:46:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:10,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:10,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:10,475 INFO L225 Difference]: With dead ends: 1803 [2022-07-22 18:46:10,475 INFO L226 Difference]: Without dead ends: 1650 [2022-07-22 18:46:10,475 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 [2022-07-22 18:46:10,476 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 2047 mSDsluCounter, 2024 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2047 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:10,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2047 Valid, 2698 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:10,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2022-07-22 18:46:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 922. [2022-07-22 18:46:10,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 922 states, 900 states have (on average 1.3244444444444445) internal successors, (1192), 921 states have internal predecessors, (1192), 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) [2022-07-22 18:46:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 922 states to 922 states and 1192 transitions. [2022-07-22 18:46:10,781 INFO L78 Accepts]: Start accepts. Automaton has 922 states and 1192 transitions. Word has length 99 [2022-07-22 18:46:10,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:10,781 INFO L495 AbstractCegarLoop]: Abstraction has 922 states and 1192 transitions. [2022-07-22 18:46:10,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:10,781 INFO L276 IsEmpty]: Start isEmpty. Operand 922 states and 1192 transitions. [2022-07-22 18:46:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:10,782 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:10,782 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] [2022-07-22 18:46:10,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-22 18:46:10,783 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:10,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1036997114, now seen corresponding path program 1 times [2022-07-22 18:46:10,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:10,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162221893] [2022-07-22 18:46:10,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:10,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:10,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:10,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162221893] [2022-07-22 18:46:10,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162221893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:10,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:10,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:10,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655381938] [2022-07-22 18:46:10,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:10,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:10,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:10,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:10,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:10,857 INFO L87 Difference]: Start difference. First operand 922 states and 1192 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:12,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:12,651 INFO L93 Difference]: Finished difference Result 1851 states and 2485 transitions. [2022-07-22 18:46:12,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:12,651 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:12,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:12,653 INFO L225 Difference]: With dead ends: 1851 [2022-07-22 18:46:12,653 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:46:12,654 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 [2022-07-22 18:46:12,654 INFO L413 NwaCegarLoop]: 749 mSDtfsCounter, 1961 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 2156 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:12,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 3027 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2156 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:12,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:46:12,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 918. [2022-07-22 18:46:12,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3247767857142858) internal successors, (1187), 917 states have internal predecessors, (1187), 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) [2022-07-22 18:46:12,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1187 transitions. [2022-07-22 18:46:12,969 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1187 transitions. Word has length 99 [2022-07-22 18:46:12,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:12,969 INFO L495 AbstractCegarLoop]: Abstraction has 918 states and 1187 transitions. [2022-07-22 18:46:12,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:12,969 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1187 transitions. [2022-07-22 18:46:12,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:12,971 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:12,971 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] [2022-07-22 18:46:12,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-22 18:46:12,971 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:12,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:12,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1643745826, now seen corresponding path program 1 times [2022-07-22 18:46:12,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:12,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970936897] [2022-07-22 18:46:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:12,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:13,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:13,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:13,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970936897] [2022-07-22 18:46:13,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970936897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:13,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:13,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156061691] [2022-07-22 18:46:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:13,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:13,061 INFO L87 Difference]: Start difference. First operand 918 states and 1187 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:14,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:14,860 INFO L93 Difference]: Finished difference Result 1846 states and 2479 transitions. [2022-07-22 18:46:14,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:14,861 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:14,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:14,862 INFO L225 Difference]: With dead ends: 1846 [2022-07-22 18:46:14,863 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:46:14,863 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 [2022-07-22 18:46:14,863 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 2823 mSDsluCounter, 2319 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2823 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2823 Valid, 3077 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:46:15,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 914. [2022-07-22 18:46:15,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 914 states, 892 states have (on average 1.3251121076233183) internal successors, (1182), 913 states have internal predecessors, (1182), 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) [2022-07-22 18:46:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 914 states to 914 states and 1182 transitions. [2022-07-22 18:46:15,171 INFO L78 Accepts]: Start accepts. Automaton has 914 states and 1182 transitions. Word has length 99 [2022-07-22 18:46:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:15,171 INFO L495 AbstractCegarLoop]: Abstraction has 914 states and 1182 transitions. [2022-07-22 18:46:15,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:15,171 INFO L276 IsEmpty]: Start isEmpty. Operand 914 states and 1182 transitions. [2022-07-22 18:46:15,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:15,173 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:15,173 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] [2022-07-22 18:46:15,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-22 18:46:15,173 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:15,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:15,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1646967475, now seen corresponding path program 1 times [2022-07-22 18:46:15,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:15,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834169887] [2022-07-22 18:46:15,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:15,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:15,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:15,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:15,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834169887] [2022-07-22 18:46:15,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834169887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:15,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:15,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:15,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616060787] [2022-07-22 18:46:15,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:15,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:15,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:15,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:15,270 INFO L87 Difference]: Start difference. First operand 914 states and 1182 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:17,104 INFO L93 Difference]: Finished difference Result 1846 states and 2477 transitions. [2022-07-22 18:46:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:17,104 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:17,106 INFO L225 Difference]: With dead ends: 1846 [2022-07-22 18:46:17,106 INFO L226 Difference]: Without dead ends: 1686 [2022-07-22 18:46:17,106 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 [2022-07-22 18:46:17,107 INFO L413 NwaCegarLoop]: 766 mSDtfsCounter, 1921 mSDsluCounter, 2347 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 3113 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:17,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 3113 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-07-22 18:46:17,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-07-22 18:46:17,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3254504504504505) internal successors, (1177), 909 states have internal predecessors, (1177), 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) [2022-07-22 18:46:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1177 transitions. [2022-07-22 18:46:17,433 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1177 transitions. Word has length 99 [2022-07-22 18:46:17,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:17,433 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1177 transitions. [2022-07-22 18:46:17,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1177 transitions. [2022-07-22 18:46:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-22 18:46:17,434 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:17,434 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] [2022-07-22 18:46:17,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-22 18:46:17,435 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:17,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:17,435 INFO L85 PathProgramCache]: Analyzing trace with hash -23064076, now seen corresponding path program 1 times [2022-07-22 18:46:17,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:17,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576338283] [2022-07-22 18:46:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:17,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:17,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576338283] [2022-07-22 18:46:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576338283] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:17,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:17,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327101768] [2022-07-22 18:46:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:17,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:17,503 INFO L87 Difference]: Start difference. First operand 910 states and 1177 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:19,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:19,293 INFO L93 Difference]: Finished difference Result 1787 states and 2390 transitions. [2022-07-22 18:46:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 18:46:19,294 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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 99 [2022-07-22 18:46:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:19,295 INFO L225 Difference]: With dead ends: 1787 [2022-07-22 18:46:19,295 INFO L226 Difference]: Without dead ends: 1638 [2022-07-22 18:46:19,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:46:19,296 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 2769 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2769 SdHoareTripleChecker+Valid, 2839 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:19,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2769 Valid, 2839 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-22 18:46:19,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-07-22 18:46:19,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-07-22 18:46:19,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3243243243243243) internal successors, (1176), 909 states have internal predecessors, (1176), 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) [2022-07-22 18:46:19,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1176 transitions. [2022-07-22 18:46:19,610 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1176 transitions. Word has length 99 [2022-07-22 18:46:19,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:19,610 INFO L495 AbstractCegarLoop]: Abstraction has 910 states and 1176 transitions. [2022-07-22 18:46:19,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 8 states have internal predecessors, (99), 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) [2022-07-22 18:46:19,610 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1176 transitions. [2022-07-22 18:46:19,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:19,611 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:19,611 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] [2022-07-22 18:46:19,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-22 18:46:19,612 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:19,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:19,612 INFO L85 PathProgramCache]: Analyzing trace with hash -362080419, now seen corresponding path program 1 times [2022-07-22 18:46:19,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:19,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381676709] [2022-07-22 18:46:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:19,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:20,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:20,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:20,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381676709] [2022-07-22 18:46:20,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381676709] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:20,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:20,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-07-22 18:46:20,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077266695] [2022-07-22 18:46:20,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:20,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-22 18:46:20,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-22 18:46:20,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-07-22 18:46:20,148 INFO L87 Difference]: Start difference. First operand 910 states and 1176 transitions. Second operand has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 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) [2022-07-22 18:46:23,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:23,227 INFO L93 Difference]: Finished difference Result 2540 states and 3429 transitions. [2022-07-22 18:46:23,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 18:46:23,227 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:23,229 INFO L225 Difference]: With dead ends: 2540 [2022-07-22 18:46:23,229 INFO L226 Difference]: Without dead ends: 2288 [2022-07-22 18:46:23,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-07-22 18:46:23,230 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 4873 mSDsluCounter, 11654 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4873 SdHoareTripleChecker+Valid, 13218 SdHoareTripleChecker+Invalid, 2283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:23,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4873 Valid, 13218 Invalid, 2283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-22 18:46:23,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2022-07-22 18:46:23,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 864. [2022-07-22 18:46:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 864 states, 843 states have (on average 1.3202846975088969) internal successors, (1113), 863 states have internal predecessors, (1113), 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) [2022-07-22 18:46:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 864 states to 864 states and 1113 transitions. [2022-07-22 18:46:23,563 INFO L78 Accepts]: Start accepts. Automaton has 864 states and 1113 transitions. Word has length 100 [2022-07-22 18:46:23,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:23,563 INFO L495 AbstractCegarLoop]: Abstraction has 864 states and 1113 transitions. [2022-07-22 18:46:23,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.882352941176471) internal successors, (100), 17 states have internal predecessors, (100), 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) [2022-07-22 18:46:23,563 INFO L276 IsEmpty]: Start isEmpty. Operand 864 states and 1113 transitions. [2022-07-22 18:46:23,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:23,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:23,564 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] [2022-07-22 18:46:23,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-22 18:46:23,564 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:23,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:23,564 INFO L85 PathProgramCache]: Analyzing trace with hash 171611640, now seen corresponding path program 1 times [2022-07-22 18:46:23,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:23,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000610329] [2022-07-22 18:46:23,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:23,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:23,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:23,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:23,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000610329] [2022-07-22 18:46:23,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000610329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:23,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:23,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:46:23,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345227085] [2022-07-22 18:46:23,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:23,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:23,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:23,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:23,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:23,832 INFO L87 Difference]: Start difference. First operand 864 states and 1113 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:25,881 INFO L93 Difference]: Finished difference Result 1420 states and 1855 transitions. [2022-07-22 18:46:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:46:25,882 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:25,883 INFO L225 Difference]: With dead ends: 1420 [2022-07-22 18:46:25,883 INFO L226 Difference]: Without dead ends: 1266 [2022-07-22 18:46:25,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:46:25,883 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 3272 mSDsluCounter, 3604 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:25,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 4275 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 18:46:25,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-07-22 18:46:26,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 854. [2022-07-22 18:46:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 834 states have (on average 1.316546762589928) internal successors, (1098), 853 states have internal predecessors, (1098), 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) [2022-07-22 18:46:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1098 transitions. [2022-07-22 18:46:26,226 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1098 transitions. Word has length 100 [2022-07-22 18:46:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:26,226 INFO L495 AbstractCegarLoop]: Abstraction has 854 states and 1098 transitions. [2022-07-22 18:46:26,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1098 transitions. [2022-07-22 18:46:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:26,227 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:26,227 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] [2022-07-22 18:46:26,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-22 18:46:26,227 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:26,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash -127286155, now seen corresponding path program 1 times [2022-07-22 18:46:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:26,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041434655] [2022-07-22 18:46:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:26,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:26,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:26,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:26,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041434655] [2022-07-22 18:46:26,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041434655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:26,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:26,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:46:26,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695355390] [2022-07-22 18:46:26,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:26,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:46:26,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:26,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:46:26,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:46:26,555 INFO L87 Difference]: Start difference. First operand 854 states and 1098 transitions. Second operand has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 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) [2022-07-22 18:46:29,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:29,965 INFO L93 Difference]: Finished difference Result 3037 states and 4152 transitions. [2022-07-22 18:46:29,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:46:29,965 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:29,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:29,968 INFO L225 Difference]: With dead ends: 3037 [2022-07-22 18:46:29,968 INFO L226 Difference]: Without dead ends: 2835 [2022-07-22 18:46:29,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:46:29,968 INFO L413 NwaCegarLoop]: 1783 mSDtfsCounter, 4170 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 11036 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:29,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 11036 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:46:29,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2835 states. [2022-07-22 18:46:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2835 to 800. [2022-07-22 18:46:30,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 783 states have (on average 1.3116219667943805) internal successors, (1027), 799 states have internal predecessors, (1027), 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) [2022-07-22 18:46:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1027 transitions. [2022-07-22 18:46:30,341 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1027 transitions. Word has length 100 [2022-07-22 18:46:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:30,341 INFO L495 AbstractCegarLoop]: Abstraction has 800 states and 1027 transitions. [2022-07-22 18:46:30,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.6923076923076925) internal successors, (100), 13 states have internal predecessors, (100), 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) [2022-07-22 18:46:30,342 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1027 transitions. [2022-07-22 18:46:30,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:30,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:30,342 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:46:30,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-22 18:46:30,343 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:30,343 INFO L85 PathProgramCache]: Analyzing trace with hash -798771389, now seen corresponding path program 1 times [2022-07-22 18:46:30,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:30,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339377267] [2022-07-22 18:46:30,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:30,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:30,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:30,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339377267] [2022-07-22 18:46:30,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339377267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:30,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:30,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:46:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386824685] [2022-07-22 18:46:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:30,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:30,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:30,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:30,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:30,621 INFO L87 Difference]: Start difference. First operand 800 states and 1027 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:32,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:32,115 INFO L93 Difference]: Finished difference Result 1465 states and 1976 transitions. [2022-07-22 18:46:32,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:46:32,116 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:32,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:32,117 INFO L225 Difference]: With dead ends: 1465 [2022-07-22 18:46:32,118 INFO L226 Difference]: Without dead ends: 1117 [2022-07-22 18:46:32,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-22 18:46:32,119 INFO L413 NwaCegarLoop]: 847 mSDtfsCounter, 3329 mSDsluCounter, 3850 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3329 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:32,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3329 Valid, 4697 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:46:32,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-07-22 18:46:32,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 600. [2022-07-22 18:46:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 588 states have (on average 1.3112244897959184) internal successors, (771), 599 states have internal predecessors, (771), 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) [2022-07-22 18:46:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 771 transitions. [2022-07-22 18:46:32,446 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 771 transitions. Word has length 100 [2022-07-22 18:46:32,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:32,447 INFO L495 AbstractCegarLoop]: Abstraction has 600 states and 771 transitions. [2022-07-22 18:46:32,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:32,447 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 771 transitions. [2022-07-22 18:46:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:32,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:32,448 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] [2022-07-22 18:46:32,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-22 18:46:32,448 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:32,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:32,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1967013514, now seen corresponding path program 1 times [2022-07-22 18:46:32,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:32,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135086564] [2022-07-22 18:46:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:32,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:32,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:32,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:32,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135086564] [2022-07-22 18:46:32,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135086564] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:32,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:32,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:46:32,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130933552] [2022-07-22 18:46:32,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:32,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:32,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:32,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:32,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:32,704 INFO L87 Difference]: Start difference. First operand 600 states and 771 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:34,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:34,129 INFO L93 Difference]: Finished difference Result 1058 states and 1397 transitions. [2022-07-22 18:46:34,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:46:34,130 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:34,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:34,131 INFO L225 Difference]: With dead ends: 1058 [2022-07-22 18:46:34,131 INFO L226 Difference]: Without dead ends: 906 [2022-07-22 18:46:34,131 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 [2022-07-22 18:46:34,131 INFO L413 NwaCegarLoop]: 499 mSDtfsCounter, 3139 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3139 SdHoareTripleChecker+Valid, 2217 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:34,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3139 Valid, 2217 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:46:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 906 states. [2022-07-22 18:46:34,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 906 to 596. [2022-07-22 18:46:34,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 585 states have (on average 1.3094017094017094) internal successors, (766), 595 states have internal predecessors, (766), 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) [2022-07-22 18:46:34,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 766 transitions. [2022-07-22 18:46:34,446 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 766 transitions. Word has length 100 [2022-07-22 18:46:34,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:34,446 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 766 transitions. [2022-07-22 18:46:34,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 12 states have internal predecessors, (100), 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) [2022-07-22 18:46:34,447 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 766 transitions. [2022-07-22 18:46:34,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-22 18:46:34,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:34,448 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] [2022-07-22 18:46:34,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-22 18:46:34,448 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:34,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:34,448 INFO L85 PathProgramCache]: Analyzing trace with hash 186496366, now seen corresponding path program 1 times [2022-07-22 18:46:34,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:34,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240085893] [2022-07-22 18:46:34,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:34,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:34,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:34,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240085893] [2022-07-22 18:46:34,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240085893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:34,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:34,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-07-22 18:46:34,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097644143] [2022-07-22 18:46:34,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:34,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-07-22 18:46:34,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:34,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-07-22 18:46:34,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2022-07-22 18:46:34,764 INFO L87 Difference]: Start difference. First operand 596 states and 766 transitions. Second operand has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 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) [2022-07-22 18:46:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:36,474 INFO L93 Difference]: Finished difference Result 1195 states and 1608 transitions. [2022-07-22 18:46:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:46:36,474 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 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 100 [2022-07-22 18:46:36,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:36,475 INFO L225 Difference]: With dead ends: 1195 [2022-07-22 18:46:36,475 INFO L226 Difference]: Without dead ends: 834 [2022-07-22 18:46:36,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:46:36,476 INFO L413 NwaCegarLoop]: 576 mSDtfsCounter, 2166 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:36,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 4727 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:46:36,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2022-07-22 18:46:36,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 499. [2022-07-22 18:46:36,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 489 states have (on average 1.3047034764826175) internal successors, (638), 498 states have internal predecessors, (638), 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) [2022-07-22 18:46:36,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 638 transitions. [2022-07-22 18:46:36,757 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 638 transitions. Word has length 100 [2022-07-22 18:46:36,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:36,758 INFO L495 AbstractCegarLoop]: Abstraction has 499 states and 638 transitions. [2022-07-22 18:46:36,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.666666666666667) internal successors, (100), 15 states have internal predecessors, (100), 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) [2022-07-22 18:46:36,758 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 638 transitions. [2022-07-22 18:46:36,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:36,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:36,758 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] [2022-07-22 18:46:36,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-22 18:46:36,759 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:36,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:36,759 INFO L85 PathProgramCache]: Analyzing trace with hash -543164459, now seen corresponding path program 1 times [2022-07-22 18:46:36,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:36,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147724859] [2022-07-22 18:46:36,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:36,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:36,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:36,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:36,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147724859] [2022-07-22 18:46:36,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147724859] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:36,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:36,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:46:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765864631] [2022-07-22 18:46:36,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:36,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:36,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:36,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:36,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:36,993 INFO L87 Difference]: Start difference. First operand 499 states and 638 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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) [2022-07-22 18:46:38,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:38,165 INFO L93 Difference]: Finished difference Result 912 states and 1210 transitions. [2022-07-22 18:46:38,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:46:38,170 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:38,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:38,171 INFO L225 Difference]: With dead ends: 912 [2022-07-22 18:46:38,171 INFO L226 Difference]: Without dead ends: 758 [2022-07-22 18:46:38,171 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 [2022-07-22 18:46:38,171 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 2062 mSDsluCounter, 1593 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:38,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 1986 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:46:38,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2022-07-22 18:46:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 487. [2022-07-22 18:46:38,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 478 states have (on average 1.299163179916318) internal successors, (621), 486 states have internal predecessors, (621), 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) [2022-07-22 18:46:38,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 621 transitions. [2022-07-22 18:46:38,463 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 621 transitions. Word has length 101 [2022-07-22 18:46:38,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:38,463 INFO L495 AbstractCegarLoop]: Abstraction has 487 states and 621 transitions. [2022-07-22 18:46:38,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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) [2022-07-22 18:46:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 621 transitions. [2022-07-22 18:46:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:38,464 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:38,464 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] [2022-07-22 18:46:38,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-22 18:46:38,464 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1971285689, now seen corresponding path program 1 times [2022-07-22 18:46:38,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:38,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340363463] [2022-07-22 18:46:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:38,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:38,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:38,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:38,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340363463] [2022-07-22 18:46:38,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340363463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:38,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:38,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:46:38,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642186460] [2022-07-22 18:46:38,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:38,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:38,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:38,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:38,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:38,668 INFO L87 Difference]: Start difference. First operand 487 states and 621 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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) [2022-07-22 18:46:39,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:39,636 INFO L93 Difference]: Finished difference Result 910 states and 1212 transitions. [2022-07-22 18:46:39,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:46:39,636 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:39,637 INFO L225 Difference]: With dead ends: 910 [2022-07-22 18:46:39,637 INFO L226 Difference]: Without dead ends: 742 [2022-07-22 18:46:39,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:46:39,638 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1320 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 2546 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:39,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 2546 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:46:39,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2022-07-22 18:46:39,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 457. [2022-07-22 18:46:39,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2984409799554566) internal successors, (583), 456 states have internal predecessors, (583), 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) [2022-07-22 18:46:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 583 transitions. [2022-07-22 18:46:39,919 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 583 transitions. Word has length 101 [2022-07-22 18:46:39,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:39,919 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 583 transitions. [2022-07-22 18:46:39,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 12 states have internal predecessors, (101), 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) [2022-07-22 18:46:39,919 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 583 transitions. [2022-07-22 18:46:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:39,920 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:39,920 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] [2022-07-22 18:46:39,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-22 18:46:39,920 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:39,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1740504427, now seen corresponding path program 1 times [2022-07-22 18:46:39,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:39,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106404082] [2022-07-22 18:46:39,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:39,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:39,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:39,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:39,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106404082] [2022-07-22 18:46:39,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106404082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:39,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:39,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:46:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162515763] [2022-07-22 18:46:40,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:40,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:46:40,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:40,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:46:40,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:46:40,001 INFO L87 Difference]: Start difference. First operand 457 states and 583 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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) [2022-07-22 18:46:40,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:40,963 INFO L93 Difference]: Finished difference Result 711 states and 921 transitions. [2022-07-22 18:46:40,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 18:46:40,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:40,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:40,965 INFO L225 Difference]: With dead ends: 711 [2022-07-22 18:46:40,965 INFO L226 Difference]: Without dead ends: 704 [2022-07-22 18:46:40,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2022-07-22 18:46:40,965 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 1579 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:40,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 1175 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:46:40,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-22 18:46:41,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 457. [2022-07-22 18:46:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 449 states have (on average 1.2962138084632517) internal successors, (582), 456 states have internal predecessors, (582), 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) [2022-07-22 18:46:41,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 582 transitions. [2022-07-22 18:46:41,257 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 582 transitions. Word has length 101 [2022-07-22 18:46:41,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:41,257 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 582 transitions. [2022-07-22 18:46:41,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 8 states have internal predecessors, (101), 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) [2022-07-22 18:46:41,257 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 582 transitions. [2022-07-22 18:46:41,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:41,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:41,258 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] [2022-07-22 18:46:41,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-22 18:46:41,258 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:41,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:41,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1904507925, now seen corresponding path program 1 times [2022-07-22 18:46:41,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:41,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131864028] [2022-07-22 18:46:41,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:41,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:41,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:41,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:41,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131864028] [2022-07-22 18:46:41,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131864028] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:41,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:41,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:46:41,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257114338] [2022-07-22 18:46:41,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:41,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:46:41,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:41,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:46:41,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:46:41,411 INFO L87 Difference]: Start difference. First operand 457 states and 582 transitions. Second operand has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-07-22 18:46:45,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:45,053 INFO L93 Difference]: Finished difference Result 2134 states and 2995 transitions. [2022-07-22 18:46:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-22 18:46:45,053 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:45,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:45,055 INFO L225 Difference]: With dead ends: 2134 [2022-07-22 18:46:45,055 INFO L226 Difference]: Without dead ends: 1956 [2022-07-22 18:46:45,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-22 18:46:45,056 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 4635 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4635 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:45,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4635 Valid, 2094 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 1567 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 18:46:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2022-07-22 18:46:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 465. [2022-07-22 18:46:45,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 457 states have (on average 1.2910284463894968) internal successors, (590), 464 states have internal predecessors, (590), 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) [2022-07-22 18:46:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 590 transitions. [2022-07-22 18:46:45,352 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 590 transitions. Word has length 101 [2022-07-22 18:46:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:45,352 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 590 transitions. [2022-07-22 18:46:45,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.416666666666666) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-07-22 18:46:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 590 transitions. [2022-07-22 18:46:45,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:45,352 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:45,353 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] [2022-07-22 18:46:45,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-22 18:46:45,353 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:45,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:45,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1612960383, now seen corresponding path program 1 times [2022-07-22 18:46:45,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:45,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77801176] [2022-07-22 18:46:45,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:45,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:45,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:45,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:45,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77801176] [2022-07-22 18:46:45,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77801176] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:45,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:45,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:46:45,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93648560] [2022-07-22 18:46:45,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:45,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:46:45,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:45,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:46:45,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:46:45,609 INFO L87 Difference]: Start difference. First operand 465 states and 590 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:47,309 INFO L93 Difference]: Finished difference Result 1305 states and 1757 transitions. [2022-07-22 18:46:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 18:46:47,310 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:47,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:47,311 INFO L225 Difference]: With dead ends: 1305 [2022-07-22 18:46:47,311 INFO L226 Difference]: Without dead ends: 1146 [2022-07-22 18:46:47,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:46:47,312 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 1979 mSDsluCounter, 3622 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:47,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 4133 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:46:47,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1146 states. [2022-07-22 18:46:47,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1146 to 454. [2022-07-22 18:46:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 447 states have (on average 1.2885906040268456) internal successors, (576), 453 states have internal predecessors, (576), 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) [2022-07-22 18:46:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 576 transitions. [2022-07-22 18:46:47,618 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 576 transitions. Word has length 101 [2022-07-22 18:46:47,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:47,618 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 576 transitions. [2022-07-22 18:46:47,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:47,618 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 576 transitions. [2022-07-22 18:46:47,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:47,619 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:47,619 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] [2022-07-22 18:46:47,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-22 18:46:47,619 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:47,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:47,620 INFO L85 PathProgramCache]: Analyzing trace with hash -2060658306, now seen corresponding path program 1 times [2022-07-22 18:46:47,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:47,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101391439] [2022-07-22 18:46:47,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:47,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:47,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:47,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:47,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101391439] [2022-07-22 18:46:47,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101391439] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:47,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:47,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:46:47,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254505257] [2022-07-22 18:46:47,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:47,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:46:47,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:47,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:46:47,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:46:47,877 INFO L87 Difference]: Start difference. First operand 454 states and 576 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:51,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:51,020 INFO L93 Difference]: Finished difference Result 2182 states and 3062 transitions. [2022-07-22 18:46:51,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:46:51,021 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:51,023 INFO L225 Difference]: With dead ends: 2182 [2022-07-22 18:46:51,023 INFO L226 Difference]: Without dead ends: 2027 [2022-07-22 18:46:51,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=157, Invalid=493, Unknown=0, NotChecked=0, Total=650 [2022-07-22 18:46:51,024 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 3087 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3087 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:51,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3087 Valid, 5305 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 805 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:46:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2022-07-22 18:46:51,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 447. [2022-07-22 18:46:51,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 440 states have (on average 1.2863636363636364) internal successors, (566), 446 states have internal predecessors, (566), 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) [2022-07-22 18:46:51,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 566 transitions. [2022-07-22 18:46:51,360 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 566 transitions. Word has length 101 [2022-07-22 18:46:51,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:51,360 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 566 transitions. [2022-07-22 18:46:51,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:51,361 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 566 transitions. [2022-07-22 18:46:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:51,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:51,361 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] [2022-07-22 18:46:51,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-22 18:46:51,361 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1449733854, now seen corresponding path program 1 times [2022-07-22 18:46:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:51,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775162155] [2022-07-22 18:46:51,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:51,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:51,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:51,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775162155] [2022-07-22 18:46:51,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775162155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:51,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:51,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:46:51,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653235241] [2022-07-22 18:46:51,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:51,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:46:51,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:51,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:46:51,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:46:51,611 INFO L87 Difference]: Start difference. First operand 447 states and 566 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:53,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:53,506 INFO L93 Difference]: Finished difference Result 1303 states and 1755 transitions. [2022-07-22 18:46:53,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-22 18:46:53,506 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:53,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:53,507 INFO L225 Difference]: With dead ends: 1303 [2022-07-22 18:46:53,507 INFO L226 Difference]: Without dead ends: 1138 [2022-07-22 18:46:53,508 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 [2022-07-22 18:46:53,508 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 2288 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2288 SdHoareTripleChecker+Valid, 3762 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:53,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2288 Valid, 3762 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:46:53,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2022-07-22 18:46:53,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 430. [2022-07-22 18:46:53,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 424 states have (on average 1.2853773584905661) internal successors, (545), 429 states have internal predecessors, (545), 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) [2022-07-22 18:46:53,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 545 transitions. [2022-07-22 18:46:53,829 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 545 transitions. Word has length 101 [2022-07-22 18:46:53,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:53,829 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 545 transitions. [2022-07-22 18:46:53,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:53,829 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 545 transitions. [2022-07-22 18:46:53,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:53,830 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:53,830 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] [2022-07-22 18:46:53,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-22 18:46:53,830 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:53,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:53,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1370136807, now seen corresponding path program 1 times [2022-07-22 18:46:53,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:53,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488196276] [2022-07-22 18:46:53,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:53,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:54,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:54,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:54,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488196276] [2022-07-22 18:46:54,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488196276] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:54,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:54,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:46:54,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900471286] [2022-07-22 18:46:54,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:54,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:46:54,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:46:54,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:46:54,080 INFO L87 Difference]: Start difference. First operand 430 states and 545 transitions. Second operand has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:57,493 INFO L93 Difference]: Finished difference Result 2138 states and 3007 transitions. [2022-07-22 18:46:57,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:46:57,494 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:57,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:57,496 INFO L225 Difference]: With dead ends: 2138 [2022-07-22 18:46:57,496 INFO L226 Difference]: Without dead ends: 1983 [2022-07-22 18:46:57,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:46:57,497 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 2704 mSDsluCounter, 6102 mSDsCounter, 0 mSdLazyCounter, 1004 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 6967 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1004 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:57,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 6967 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1004 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-22 18:46:57,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1983 states. [2022-07-22 18:46:57,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1983 to 423. [2022-07-22 18:46:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 417 states have (on average 1.2829736211031175) internal successors, (535), 422 states have internal predecessors, (535), 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) [2022-07-22 18:46:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 535 transitions. [2022-07-22 18:46:57,829 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 535 transitions. Word has length 101 [2022-07-22 18:46:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:46:57,829 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 535 transitions. [2022-07-22 18:46:57,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.769230769230769) internal successors, (101), 13 states have internal predecessors, (101), 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) [2022-07-22 18:46:57,829 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 535 transitions. [2022-07-22 18:46:57,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-22 18:46:57,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:46:57,830 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] [2022-07-22 18:46:57,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-22 18:46:57,830 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:46:57,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:46:57,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1781714603, now seen corresponding path program 1 times [2022-07-22 18:46:57,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:46:57,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619851853] [2022-07-22 18:46:57,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:46:57,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:46:57,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:46:58,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:46:58,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:46:58,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619851853] [2022-07-22 18:46:58,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619851853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:46:58,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:46:58,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:46:58,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147070601] [2022-07-22 18:46:58,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:46:58,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-22 18:46:58,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:46:58,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-22 18:46:58,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-22 18:46:58,052 INFO L87 Difference]: Start difference. First operand 423 states and 535 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-07-22 18:46:59,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:46:59,908 INFO L93 Difference]: Finished difference Result 1253 states and 1722 transitions. [2022-07-22 18:46:59,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-22 18:46:59,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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 101 [2022-07-22 18:46:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:46:59,909 INFO L225 Difference]: With dead ends: 1253 [2022-07-22 18:46:59,909 INFO L226 Difference]: Without dead ends: 1027 [2022-07-22 18:46:59,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2022-07-22 18:46:59,910 INFO L413 NwaCegarLoop]: 428 mSDtfsCounter, 2371 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2371 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:46:59,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2371 Valid, 2235 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:46:59,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2022-07-22 18:47:00,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 345. [2022-07-22 18:47:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 341 states have (on average 1.2873900293255132) internal successors, (439), 344 states have internal predecessors, (439), 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) [2022-07-22 18:47:00,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 439 transitions. [2022-07-22 18:47:00,204 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 439 transitions. Word has length 101 [2022-07-22 18:47:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:00,204 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 439 transitions. [2022-07-22 18:47:00,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-07-22 18:47:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 439 transitions. [2022-07-22 18:47:00,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-22 18:47:00,205 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:00,205 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] [2022-07-22 18:47:00,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-22 18:47:00,205 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:00,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:00,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1057282067, now seen corresponding path program 1 times [2022-07-22 18:47:00,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:00,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327499227] [2022-07-22 18:47:00,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:00,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:00,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:00,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327499227] [2022-07-22 18:47:00,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327499227] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:00,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:00,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-22 18:47:00,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52206156] [2022-07-22 18:47:00,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:00,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:47:00,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:00,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:47:00,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:47:00,369 INFO L87 Difference]: Start difference. First operand 345 states and 439 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 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) [2022-07-22 18:47:02,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:02,354 INFO L93 Difference]: Finished difference Result 929 states and 1267 transitions. [2022-07-22 18:47:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 18:47:02,355 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 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 102 [2022-07-22 18:47:02,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:02,356 INFO L225 Difference]: With dead ends: 929 [2022-07-22 18:47:02,356 INFO L226 Difference]: Without dead ends: 922 [2022-07-22 18:47:02,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-07-22 18:47:02,356 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 3551 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3551 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:02,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3551 Valid, 817 Invalid, 795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 593 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-22 18:47:02,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2022-07-22 18:47:02,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 349. [2022-07-22 18:47:02,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 345 states have (on average 1.2840579710144928) internal successors, (443), 348 states have internal predecessors, (443), 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) [2022-07-22 18:47:02,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 443 transitions. [2022-07-22 18:47:02,667 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 443 transitions. Word has length 102 [2022-07-22 18:47:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:02,668 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 443 transitions. [2022-07-22 18:47:02,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 11 states have internal predecessors, (102), 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) [2022-07-22 18:47:02,668 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 443 transitions. [2022-07-22 18:47:02,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-22 18:47:02,669 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:02,669 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] [2022-07-22 18:47:02,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-22 18:47:02,669 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:02,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:02,669 INFO L85 PathProgramCache]: Analyzing trace with hash 690209749, now seen corresponding path program 1 times [2022-07-22 18:47:02,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:02,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755839719] [2022-07-22 18:47:02,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:02,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:02,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:02,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755839719] [2022-07-22 18:47:02,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755839719] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:02,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:02,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:02,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746207026] [2022-07-22 18:47:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:02,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 18:47:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:02,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 18:47:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 18:47:02,751 INFO L87 Difference]: Start difference. First operand 349 states and 443 transitions. Second operand has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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) [2022-07-22 18:47:03,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:03,667 INFO L93 Difference]: Finished difference Result 727 states and 979 transitions. [2022-07-22 18:47:03,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:47:03,667 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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 102 [2022-07-22 18:47:03,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:03,668 INFO L225 Difference]: With dead ends: 727 [2022-07-22 18:47:03,668 INFO L226 Difference]: Without dead ends: 549 [2022-07-22 18:47:03,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2022-07-22 18:47:03,668 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 979 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 979 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:03,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [979 Valid, 838 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:47:03,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-22 18:47:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 341. [2022-07-22 18:47:03,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 337 states have (on average 1.28486646884273) internal successors, (433), 340 states have internal predecessors, (433), 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) [2022-07-22 18:47:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 433 transitions. [2022-07-22 18:47:03,962 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 433 transitions. Word has length 102 [2022-07-22 18:47:03,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:03,962 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 433 transitions. [2022-07-22 18:47:03,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.333333333333334) internal successors, (102), 8 states have internal predecessors, (102), 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) [2022-07-22 18:47:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 433 transitions. [2022-07-22 18:47:03,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 18:47:03,963 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:03,963 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] [2022-07-22 18:47:03,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-22 18:47:03,963 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:03,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:03,964 INFO L85 PathProgramCache]: Analyzing trace with hash 348199129, now seen corresponding path program 1 times [2022-07-22 18:47:03,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:03,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421691974] [2022-07-22 18:47:03,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:03,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:04,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:04,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421691974] [2022-07-22 18:47:04,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421691974] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:04,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:04,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:47:04,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514943165] [2022-07-22 18:47:04,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:04,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:47:04,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:04,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:47:04,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:47:04,148 INFO L87 Difference]: Start difference. First operand 341 states and 433 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 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) [2022-07-22 18:47:05,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:05,663 INFO L93 Difference]: Finished difference Result 566 states and 738 transitions. [2022-07-22 18:47:05,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:47:05,664 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 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 103 [2022-07-22 18:47:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:05,665 INFO L225 Difference]: With dead ends: 566 [2022-07-22 18:47:05,665 INFO L226 Difference]: Without dead ends: 559 [2022-07-22 18:47:05,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=188, Invalid=624, Unknown=0, NotChecked=0, Total=812 [2022-07-22 18:47:05,665 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 871 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:05,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1770 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 18:47:05,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-07-22 18:47:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 337. [2022-07-22 18:47:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 333 states have (on average 1.2852852852852852) internal successors, (428), 336 states have internal predecessors, (428), 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) [2022-07-22 18:47:05,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 428 transitions. [2022-07-22 18:47:05,961 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 428 transitions. Word has length 103 [2022-07-22 18:47:05,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:05,961 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 428 transitions. [2022-07-22 18:47:05,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 12 states have internal predecessors, (103), 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) [2022-07-22 18:47:05,961 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 428 transitions. [2022-07-22 18:47:05,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 18:47:05,962 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:05,962 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] [2022-07-22 18:47:05,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-22 18:47:05,962 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:05,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:05,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1191441136, now seen corresponding path program 1 times [2022-07-22 18:47:05,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:05,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112176241] [2022-07-22 18:47:05,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:05,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:06,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:06,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:06,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112176241] [2022-07-22 18:47:06,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112176241] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:06,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:06,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:47:06,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525318475] [2022-07-22 18:47:06,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:06,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:47:06,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:06,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:47:06,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:47:06,179 INFO L87 Difference]: Start difference. First operand 337 states and 428 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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) [2022-07-22 18:47:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:07,775 INFO L93 Difference]: Finished difference Result 849 states and 1162 transitions. [2022-07-22 18:47:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:47:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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 103 [2022-07-22 18:47:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:07,776 INFO L225 Difference]: With dead ends: 849 [2022-07-22 18:47:07,776 INFO L226 Difference]: Without dead ends: 843 [2022-07-22 18:47:07,776 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 [2022-07-22 18:47:07,777 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1233 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1233 SdHoareTripleChecker+Valid, 3289 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:07,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1233 Valid, 3289 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:47:07,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2022-07-22 18:47:08,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 331. [2022-07-22 18:47:08,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 328 states have (on average 1.2835365853658536) internal successors, (421), 330 states have internal predecessors, (421), 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) [2022-07-22 18:47:08,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 421 transitions. [2022-07-22 18:47:08,072 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 421 transitions. Word has length 103 [2022-07-22 18:47:08,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:08,072 INFO L495 AbstractCegarLoop]: Abstraction has 331 states and 421 transitions. [2022-07-22 18:47:08,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 12 states have internal predecessors, (103), 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) [2022-07-22 18:47:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 421 transitions. [2022-07-22 18:47:08,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-22 18:47:08,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:08,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:08,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-22 18:47:08,073 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:08,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:08,073 INFO L85 PathProgramCache]: Analyzing trace with hash -996428293, now seen corresponding path program 1 times [2022-07-22 18:47:08,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:08,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835486520] [2022-07-22 18:47:08,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:08,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:09,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:09,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:09,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835486520] [2022-07-22 18:47:09,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835486520] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:09,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:09,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-07-22 18:47:09,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678571248] [2022-07-22 18:47:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:09,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-07-22 18:47:09,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:09,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-07-22 18:47:09,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=980, Unknown=0, NotChecked=0, Total=1056 [2022-07-22 18:47:09,169 INFO L87 Difference]: Start difference. First operand 331 states and 421 transitions. Second operand has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 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) [2022-07-22 18:47:13,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:13,267 INFO L93 Difference]: Finished difference Result 570 states and 740 transitions. [2022-07-22 18:47:13,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-07-22 18:47:13,268 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 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 103 [2022-07-22 18:47:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:13,268 INFO L225 Difference]: With dead ends: 570 [2022-07-22 18:47:13,268 INFO L226 Difference]: Without dead ends: 562 [2022-07-22 18:47:13,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=517, Invalid=3265, Unknown=0, NotChecked=0, Total=3782 [2022-07-22 18:47:13,269 INFO L413 NwaCegarLoop]: 341 mSDtfsCounter, 1152 mSDsluCounter, 6320 mSDsCounter, 0 mSdLazyCounter, 3350 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1152 SdHoareTripleChecker+Valid, 6661 SdHoareTripleChecker+Invalid, 3419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:13,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1152 Valid, 6661 Invalid, 3419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 3350 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-22 18:47:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2022-07-22 18:47:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 350. [2022-07-22 18:47:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 347 states have (on average 1.2795389048991355) internal successors, (444), 349 states have internal predecessors, (444), 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) [2022-07-22 18:47:13,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 444 transitions. [2022-07-22 18:47:13,578 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 444 transitions. Word has length 103 [2022-07-22 18:47:13,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:13,578 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 444 transitions. [2022-07-22 18:47:13,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.121212121212121) internal successors, (103), 33 states have internal predecessors, (103), 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) [2022-07-22 18:47:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 444 transitions. [2022-07-22 18:47:13,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 18:47:13,579 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:13,579 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] [2022-07-22 18:47:13,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-22 18:47:13,579 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:13,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:13,579 INFO L85 PathProgramCache]: Analyzing trace with hash -443112637, now seen corresponding path program 1 times [2022-07-22 18:47:13,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:13,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378611783] [2022-07-22 18:47:13,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:13,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:13,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:13,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:13,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378611783] [2022-07-22 18:47:13,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378611783] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:13,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:13,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 18:47:13,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184946967] [2022-07-22 18:47:13,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:13,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 18:47:13,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:13,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 18:47:13,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 18:47:13,811 INFO L87 Difference]: Start difference. First operand 350 states and 444 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2022-07-22 18:47:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:15,405 INFO L93 Difference]: Finished difference Result 982 states and 1324 transitions. [2022-07-22 18:47:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 18:47:15,406 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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 104 [2022-07-22 18:47:15,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:15,407 INFO L225 Difference]: With dead ends: 982 [2022-07-22 18:47:15,407 INFO L226 Difference]: Without dead ends: 958 [2022-07-22 18:47:15,407 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 [2022-07-22 18:47:15,407 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 1428 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:15,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 2832 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 18:47:15,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2022-07-22 18:47:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 326. [2022-07-22 18:47:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 324 states have (on average 1.287037037037037) internal successors, (417), 325 states have internal predecessors, (417), 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) [2022-07-22 18:47:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 417 transitions. [2022-07-22 18:47:15,714 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 417 transitions. Word has length 104 [2022-07-22 18:47:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:15,714 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 417 transitions. [2022-07-22 18:47:15,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2022-07-22 18:47:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 417 transitions. [2022-07-22 18:47:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-07-22 18:47:15,715 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:15,715 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] [2022-07-22 18:47:15,715 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-22 18:47:15,716 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:15,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:15,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1350243176, now seen corresponding path program 1 times [2022-07-22 18:47:15,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:15,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600146084] [2022-07-22 18:47:15,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:15,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:15,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:15,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:15,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600146084] [2022-07-22 18:47:15,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600146084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:15,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:15,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-22 18:47:15,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370258154] [2022-07-22 18:47:15,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:15,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-22 18:47:15,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:15,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-22 18:47:15,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:47:15,974 INFO L87 Difference]: Start difference. First operand 326 states and 417 transitions. Second operand has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2022-07-22 18:47:18,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:18,331 INFO L93 Difference]: Finished difference Result 1156 states and 1623 transitions. [2022-07-22 18:47:18,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-22 18:47:18,332 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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 104 [2022-07-22 18:47:18,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:18,333 INFO L225 Difference]: With dead ends: 1156 [2022-07-22 18:47:18,333 INFO L226 Difference]: Without dead ends: 1141 [2022-07-22 18:47:18,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-22 18:47:18,334 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 1400 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:18,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 4274 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 18:47:18,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2022-07-22 18:47:18,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 295. [2022-07-22 18:47:18,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 294 states have (on average 1.2925170068027212) internal successors, (380), 294 states have internal predecessors, (380), 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) [2022-07-22 18:47:18,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 380 transitions. [2022-07-22 18:47:18,634 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 380 transitions. Word has length 104 [2022-07-22 18:47:18,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:18,635 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 380 transitions. [2022-07-22 18:47:18,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.0) internal successors, (104), 13 states have internal predecessors, (104), 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) [2022-07-22 18:47:18,635 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 380 transitions. [2022-07-22 18:47:18,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-07-22 18:47:18,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:18,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:18,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-22 18:47:18,635 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:18,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:18,636 INFO L85 PathProgramCache]: Analyzing trace with hash 448868843, now seen corresponding path program 1 times [2022-07-22 18:47:18,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:18,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966792890] [2022-07-22 18:47:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:18,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:18,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:18,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:18,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966792890] [2022-07-22 18:47:18,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966792890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:18,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:18,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610128569] [2022-07-22 18:47:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:18,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:47:18,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:18,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:47:18,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:47:18,699 INFO L87 Difference]: Start difference. First operand 295 states and 380 transitions. Second operand has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 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) [2022-07-22 18:47:21,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:21,886 INFO L93 Difference]: Finished difference Result 2071 states and 3020 transitions. [2022-07-22 18:47:21,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-22 18:47:21,887 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 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 135 [2022-07-22 18:47:21,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:21,888 INFO L225 Difference]: With dead ends: 2071 [2022-07-22 18:47:21,888 INFO L226 Difference]: Without dead ends: 1923 [2022-07-22 18:47:21,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-22 18:47:21,889 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1808 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1808 SdHoareTripleChecker+Valid, 3664 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:21,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1808 Valid, 3664 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:47:21,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2022-07-22 18:47:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 441. [2022-07-22 18:47:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.3522727272727273) internal successors, (595), 440 states have internal predecessors, (595), 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) [2022-07-22 18:47:22,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 595 transitions. [2022-07-22 18:47:22,458 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 595 transitions. Word has length 135 [2022-07-22 18:47:22,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:22,458 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 595 transitions. [2022-07-22 18:47:22,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.875) internal successors, (135), 8 states have internal predecessors, (135), 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) [2022-07-22 18:47:22,458 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 595 transitions. [2022-07-22 18:47:22,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-22 18:47:22,459 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:22,459 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:22,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-07-22 18:47:22,459 INFO L420 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:22,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:22,460 INFO L85 PathProgramCache]: Analyzing trace with hash -41714143, now seen corresponding path program 1 times [2022-07-22 18:47:22,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:22,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000614347] [2022-07-22 18:47:22,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:22,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:22,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:22,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:22,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000614347] [2022-07-22 18:47:22,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000614347] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:22,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:22,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:22,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231775345] [2022-07-22 18:47:22,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:22,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:47:22,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:22,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:47:22,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:47:22,529 INFO L87 Difference]: Start difference. First operand 441 states and 595 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:25,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:25,962 INFO L93 Difference]: Finished difference Result 2353 states and 3421 transitions. [2022-07-22 18:47:25,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:47:25,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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 137 [2022-07-22 18:47:25,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:25,964 INFO L225 Difference]: With dead ends: 2353 [2022-07-22 18:47:25,965 INFO L226 Difference]: Without dead ends: 2059 [2022-07-22 18:47:25,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:47:25,965 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 1531 mSDsluCounter, 1594 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:25,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1936 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:47:25,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2059 states. [2022-07-22 18:47:27,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2059 to 733. [2022-07-22 18:47:27,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 733 states, 732 states have (on average 1.4030054644808743) internal successors, (1027), 732 states have internal predecessors, (1027), 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) [2022-07-22 18:47:27,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 1027 transitions. [2022-07-22 18:47:27,073 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 1027 transitions. Word has length 137 [2022-07-22 18:47:27,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:27,073 INFO L495 AbstractCegarLoop]: Abstraction has 733 states and 1027 transitions. [2022-07-22 18:47:27,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:27,073 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 1027 transitions. [2022-07-22 18:47:27,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-22 18:47:27,074 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:27,074 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:27,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-07-22 18:47:27,075 INFO L420 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:27,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:27,075 INFO L85 PathProgramCache]: Analyzing trace with hash 1023774299, now seen corresponding path program 1 times [2022-07-22 18:47:27,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:27,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36321618] [2022-07-22 18:47:27,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:27,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:27,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:27,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36321618] [2022-07-22 18:47:27,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36321618] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:27,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:27,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:27,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554209512] [2022-07-22 18:47:27,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:27,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:47:27,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:27,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:47:27,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:47:27,155 INFO L87 Difference]: Start difference. First operand 733 states and 1027 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:31,274 INFO L93 Difference]: Finished difference Result 2645 states and 3853 transitions. [2022-07-22 18:47:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:47:31,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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 137 [2022-07-22 18:47:31,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:31,277 INFO L225 Difference]: With dead ends: 2645 [2022-07-22 18:47:31,277 INFO L226 Difference]: Without dead ends: 2351 [2022-07-22 18:47:31,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:47:31,277 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 1531 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:31,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1842 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:47:31,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2351 states. [2022-07-22 18:47:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2351 to 1171. [2022-07-22 18:47:33,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1170 states have (on average 1.4307692307692308) internal successors, (1674), 1170 states have internal predecessors, (1674), 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) [2022-07-22 18:47:33,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1674 transitions. [2022-07-22 18:47:33,163 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1674 transitions. Word has length 137 [2022-07-22 18:47:33,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:33,163 INFO L495 AbstractCegarLoop]: Abstraction has 1171 states and 1674 transitions. [2022-07-22 18:47:33,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:33,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1674 transitions. [2022-07-22 18:47:33,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-22 18:47:33,164 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:33,164 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:33,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-07-22 18:47:33,164 INFO L420 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash 388220693, now seen corresponding path program 1 times [2022-07-22 18:47:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:33,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885630692] [2022-07-22 18:47:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:33,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:33,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:33,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:33,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885630692] [2022-07-22 18:47:33,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885630692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:33,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:33,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678907404] [2022-07-22 18:47:33,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:33,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:47:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:47:33,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:47:33,239 INFO L87 Difference]: Start difference. First operand 1171 states and 1674 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 18:47:37,798 INFO L93 Difference]: Finished difference Result 2937 states and 4285 transitions. [2022-07-22 18:47:37,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-22 18:47:37,799 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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 137 [2022-07-22 18:47:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 18:47:37,801 INFO L225 Difference]: With dead ends: 2937 [2022-07-22 18:47:37,801 INFO L226 Difference]: Without dead ends: 2643 [2022-07-22 18:47:37,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-07-22 18:47:37,802 INFO L413 NwaCegarLoop]: 330 mSDtfsCounter, 1608 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1608 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 18:47:37,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1608 Valid, 1748 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 18:47:37,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2643 states. [2022-07-22 18:47:40,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2643 to 1463. [2022-07-22 18:47:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.4404924760601916) internal successors, (2106), 1462 states have internal predecessors, (2106), 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) [2022-07-22 18:47:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2106 transitions. [2022-07-22 18:47:40,328 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2106 transitions. Word has length 137 [2022-07-22 18:47:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 18:47:40,328 INFO L495 AbstractCegarLoop]: Abstraction has 1463 states and 2106 transitions. [2022-07-22 18:47:40,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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) [2022-07-22 18:47:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2106 transitions. [2022-07-22 18:47:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-07-22 18:47:40,329 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 18:47:40,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 18:47:40,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-07-22 18:47:40,330 INFO L420 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-22 18:47:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 18:47:40,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1948470775, now seen corresponding path program 1 times [2022-07-22 18:47:40,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 18:47:40,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819854465] [2022-07-22 18:47:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 18:47:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 18:47:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 18:47:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 18:47:40,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 18:47:40,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819854465] [2022-07-22 18:47:40,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819854465] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 18:47:40,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 18:47:40,395 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-22 18:47:40,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674897410] [2022-07-22 18:47:40,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 18:47:40,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-22 18:47:40,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 18:47:40,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-22 18:47:40,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-22 18:47:40,396 INFO L87 Difference]: Start difference. First operand 1463 states and 2106 transitions. Second operand has 8 states, 8 states have (on average 17.125) internal successors, (137), 8 states have internal predecessors, (137), 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)