./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+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 06:05:31,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 06:05:31,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 06:05:31,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 06:05:31,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 06:05:31,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 06:05:31,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 06:05:31,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 06:05:31,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 06:05:31,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 06:05:31,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 06:05:31,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 06:05:31,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 06:05:31,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 06:05:31,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 06:05:31,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 06:05:31,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 06:05:31,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 06:05:31,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 06:05:31,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 06:05:31,962 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 06:05:31,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 06:05:31,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 06:05:31,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 06:05:31,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 06:05:31,978 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 06:05:31,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 06:05:31,979 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 06:05:31,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 06:05:31,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 06:05:31,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 06:05:31,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 06:05:31,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 06:05:31,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 06:05:31,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 06:05:31,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 06:05:31,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 06:05:31,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 06:05:31,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 06:05:31,987 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 06:05:31,988 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 06:05:31,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 06:05:31,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 06:05:32,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 06:05:32,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 06:05:32,021 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 06:05:32,021 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 06:05:32,022 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 06:05:32,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 06:05:32,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 06:05:32,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 06:05:32,024 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 06:05:32,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 06:05:32,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 06:05:32,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 06:05:32,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 06:05:32,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 06:05:32,026 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 06:05:32,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 06:05:32,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 06:05:32,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 06:05:32,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 06:05:32,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 06:05:32,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 06:05:32,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 06:05:32,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 06:05:32,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 06:05:32,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:05:32,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 06:05:32,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 06:05:32,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 06:05:32,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 06:05:32,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 06:05:32,030 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 06:05:32,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 06:05:32,030 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 06:05:32,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea17b6f261bb6e2069b46537416ceb2b28c77bf12fbc31c6c070453fa873ea8f [2022-07-21 06:05:32,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 06:05:32,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 06:05:32,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 06:05:32,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 06:05:32,413 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 06:05:32,416 INFO L432 ainManager$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+sep-reducer.c [2022-07-21 06:05:32,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01a5e1b4/3c92f48390824d4dada14f934bdd5b92/FLAG042784985 [2022-07-21 06:05:33,373 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 06:05:33,373 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+sep-reducer.c [2022-07-21 06:05:33,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01a5e1b4/3c92f48390824d4dada14f934bdd5b92/FLAG042784985 [2022-07-21 06:05:33,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d01a5e1b4/3c92f48390824d4dada14f934bdd5b92 [2022-07-21 06:05:33,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 06:05:33,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 06:05:33,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 06:05:33,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 06:05:33,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 06:05:33,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:05:33" (1/1) ... [2022-07-21 06:05:33,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79ccf532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:33, skipping insertion in model container [2022-07-21 06:05:33,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 06:05:33" (1/1) ... [2022-07-21 06:05:33,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 06:05:33,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 06:05:34,419 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+sep-reducer.c[80354,80367] [2022-07-21 06:05:34,563 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+sep-reducer.c[115904,115917] [2022-07-21 06:05:34,616 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+sep-reducer.c[133708,133721] [2022-07-21 06:05:34,667 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c[142627,142640] [2022-07-21 06:05:34,679 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+sep-reducer.c[147060,147073] [2022-07-21 06:05:34,690 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+sep-reducer.c[151393,151406] [2022-07-21 06:05:34,775 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+sep-reducer.c[186229,186242] [2022-07-21 06:05:34,821 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+sep-reducer.c[203860,203873] [2022-07-21 06:05:34,843 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+sep-reducer.c[212816,212829] [2022-07-21 06:05:34,856 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+sep-reducer.c[217286,217299] [2022-07-21 06:05:34,866 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+sep-reducer.c[221656,221669] [2022-07-21 06:05:34,932 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+sep-reducer.c[240553,240566] [2022-07-21 06:05:34,952 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+sep-reducer.c[249509,249522] [2022-07-21 06:05:34,964 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+sep-reducer.c[253979,253992] [2022-07-21 06:05:34,975 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+sep-reducer.c[258349,258362] [2022-07-21 06:05:34,988 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+sep-reducer.c[263314,263327] [2022-07-21 06:05:34,999 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+sep-reducer.c[267693,267706] [2022-07-21 06:05:35,010 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+sep-reducer.c[272163,272176] [2022-07-21 06:05:35,021 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+sep-reducer.c[276533,276546] [2022-07-21 06:05:35,033 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+sep-reducer.c[281119,281132] [2022-07-21 06:05:35,044 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+sep-reducer.c[285656,285669] [2022-07-21 06:05:35,056 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+sep-reducer.c[290122,290135] [2022-07-21 06:05:35,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:05:35,130 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 06:05:35,340 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+sep-reducer.c[80354,80367] [2022-07-21 06:05:35,416 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+sep-reducer.c[115904,115917] [2022-07-21 06:05:35,448 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+sep-reducer.c[133708,133721] [2022-07-21 06:05:35,465 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+sep-reducer.c[142627,142640] [2022-07-21 06:05:35,474 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+sep-reducer.c[147060,147073] [2022-07-21 06:05:35,483 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+sep-reducer.c[151393,151406] [2022-07-21 06:05:35,549 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+sep-reducer.c[186229,186242] [2022-07-21 06:05:35,581 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+sep-reducer.c[203860,203873] [2022-07-21 06:05:35,597 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+sep-reducer.c[212816,212829] [2022-07-21 06:05:35,606 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+sep-reducer.c[217286,217299] [2022-07-21 06:05:35,615 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+sep-reducer.c[221656,221669] [2022-07-21 06:05:35,648 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+sep-reducer.c[240553,240566] [2022-07-21 06:05:35,668 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+sep-reducer.c[249509,249522] [2022-07-21 06:05:35,677 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+sep-reducer.c[253979,253992] [2022-07-21 06:05:35,702 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+sep-reducer.c[258349,258362] [2022-07-21 06:05:35,712 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+sep-reducer.c[263314,263327] [2022-07-21 06:05:35,723 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+sep-reducer.c[267693,267706] [2022-07-21 06:05:35,732 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+sep-reducer.c[272163,272176] [2022-07-21 06:05:35,740 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+sep-reducer.c[276533,276546] [2022-07-21 06:05:35,749 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+sep-reducer.c[281119,281132] [2022-07-21 06:05:35,758 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+sep-reducer.c[285656,285669] [2022-07-21 06:05:35,767 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+sep-reducer.c[290122,290135] [2022-07-21 06:05:35,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 06:05:35,823 INFO L208 MainTranslator]: Completed translation [2022-07-21 06:05:35,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35 WrapperNode [2022-07-21 06:05:35,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 06:05:35,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 06:05:35,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 06:05:35,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 06:05:35,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:35,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,092 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12453 [2022-07-21 06:05:36,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 06:05:36,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 06:05:36,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 06:05:36,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 06:05:36,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 06:05:36,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 06:05:36,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 06:05:36,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 06:05:36,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (1/1) ... [2022-07-21 06:05:36,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 06:05:36,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 06:05:36,436 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 06:05:36,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 06:05:36,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 06:05:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 06:05:36,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 06:05:36,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 06:05:36,936 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 06:05:36,937 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 06:05:41,153 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 06:05:41,179 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 06:05:41,179 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 06:05:41,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:05:41 BoogieIcfgContainer [2022-07-21 06:05:41,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 06:05:41,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 06:05:41,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 06:05:41,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 06:05:41,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 06:05:33" (1/3) ... [2022-07-21 06:05:41,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab49d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:05:41, skipping insertion in model container [2022-07-21 06:05:41,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 06:05:35" (2/3) ... [2022-07-21 06:05:41,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ab49d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 06:05:41, skipping insertion in model container [2022-07-21 06:05:41,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 06:05:41" (3/3) ... [2022-07-21 06:05:41,190 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+sep-reducer.c [2022-07-21 06:05:41,202 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 06:05:41,202 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-07-21 06:05:41,282 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 06:05:41,290 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@5c711421, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@27e7ddbc [2022-07-21 06:05:41,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-07-21 06:05:41,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:41,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 06:05:41,331 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:41,331 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] [2022-07-21 06:05:41,332 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)] === [2022-07-21 06:05:41,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:41,337 INFO L85 PathProgramCache]: Analyzing trace with hash -876960142, now seen corresponding path program 1 times [2022-07-21 06:05:41,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:41,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439707290] [2022-07-21 06:05:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:41,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:41,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:41,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439707290] [2022-07-21 06:05:41,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439707290] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:41,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:41,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:41,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506137491] [2022-07-21 06:05:41,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:41,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:41,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:41,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:41,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:41,849 INFO L87 Difference]: Start difference. First operand has 2541 states, 2518 states have (on average 1.7589356632247817) internal successors, (4429), 2540 states have internal predecessors, (4429), 0 states have call successors, (0), 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 17.4) 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) [2022-07-21 06:05:44,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:44,461 INFO L93 Difference]: Finished difference Result 4213 states and 7126 transitions. [2022-07-21 06:05:44,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:44,464 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 [2022-07-21 06:05:44,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:44,490 INFO L225 Difference]: With dead ends: 4213 [2022-07-21 06:05:44,490 INFO L226 Difference]: Without dead ends: 2941 [2022-07-21 06:05:44,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:44,501 INFO L413 NwaCegarLoop]: 1898 mSDtfsCounter, 13092 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 2252 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13092 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 2341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:44,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13092 Valid, 2679 Invalid, 2341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2252 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-21 06:05:44,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2941 states. [2022-07-21 06:05:44,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2941 to 2755. [2022-07-21 06:05:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2755 states, 2733 states have (on average 1.3241858763263812) internal successors, (3619), 2754 states have internal predecessors, (3619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:44,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2755 states to 2755 states and 3619 transitions. [2022-07-21 06:05:44,739 INFO L78 Accepts]: Start accepts. Automaton has 2755 states and 3619 transitions. Word has length 87 [2022-07-21 06:05:44,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:44,740 INFO L495 AbstractCegarLoop]: Abstraction has 2755 states and 3619 transitions. [2022-07-21 06:05:44,740 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) [2022-07-21 06:05:44,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2755 states and 3619 transitions. [2022-07-21 06:05:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 06:05:44,748 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:44,748 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] [2022-07-21 06:05:44,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 06:05:44,749 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:44,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1410328050, now seen corresponding path program 1 times [2022-07-21 06:05:44,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:44,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266066091] [2022-07-21 06:05:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:44,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:44,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266066091] [2022-07-21 06:05:44,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266066091] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:44,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:44,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:44,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771361214] [2022-07-21 06:05:44,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:44,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:44,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:44,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:44,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:44,956 INFO L87 Difference]: Start difference. First operand 2755 states and 3619 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) [2022-07-21 06:05:45,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:45,852 INFO L93 Difference]: Finished difference Result 3042 states and 3982 transitions. [2022-07-21 06:05:45,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:45,853 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 [2022-07-21 06:05:45,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:45,860 INFO L225 Difference]: With dead ends: 3042 [2022-07-21 06:05:45,860 INFO L226 Difference]: Without dead ends: 1713 [2022-07-21 06:05:45,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:45,864 INFO L413 NwaCegarLoop]: 794 mSDtfsCounter, 4657 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4657 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:45,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4657 Valid, 830 Invalid, 870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2022-07-21 06:05:45,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1713. [2022-07-21 06:05:45,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1691 states have (on average 1.3341218214074513) internal successors, (2256), 1712 states have internal predecessors, (2256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2256 transitions. [2022-07-21 06:05:45,952 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2256 transitions. Word has length 87 [2022-07-21 06:05:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:45,953 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2256 transitions. [2022-07-21 06:05:45,953 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) [2022-07-21 06:05:45,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2256 transitions. [2022-07-21 06:05:45,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-07-21 06:05:45,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:45,957 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] [2022-07-21 06:05:45,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 06:05:45,958 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:45,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:45,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1125625269, now seen corresponding path program 1 times [2022-07-21 06:05:45,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:45,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924245270] [2022-07-21 06:05:45,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:45,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:46,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:46,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:46,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:46,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924245270] [2022-07-21 06:05:46,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924245270] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:46,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:46,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:46,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565106425] [2022-07-21 06:05:46,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:46,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:46,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:46,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:46,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:46,072 INFO L87 Difference]: Start difference. First operand 1713 states and 2256 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) [2022-07-21 06:05:46,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:46,675 INFO L93 Difference]: Finished difference Result 2133 states and 2819 transitions. [2022-07-21 06:05:46,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:46,676 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 [2022-07-21 06:05:46,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:46,681 INFO L225 Difference]: With dead ends: 2133 [2022-07-21 06:05:46,682 INFO L226 Difference]: Without dead ends: 1257 [2022-07-21 06:05:46,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:46,685 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 3393 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3393 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:46,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3393 Valid, 658 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:05:46,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1257 states. [2022-07-21 06:05:46,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1257 to 1257. [2022-07-21 06:05:46,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1235 states have (on average 1.3522267206477734) internal successors, (1670), 1256 states have internal predecessors, (1670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:46,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1670 transitions. [2022-07-21 06:05:46,757 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1670 transitions. Word has length 87 [2022-07-21 06:05:46,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:46,758 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1670 transitions. [2022-07-21 06:05:46,758 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) [2022-07-21 06:05:46,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1670 transitions. [2022-07-21 06:05:46,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-21 06:05:46,762 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:46,763 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] [2022-07-21 06:05:46,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 06:05:46,763 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:46,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:46,764 INFO L85 PathProgramCache]: Analyzing trace with hash -229604869, now seen corresponding path program 1 times [2022-07-21 06:05:46,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:46,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152282186] [2022-07-21 06:05:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:46,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:46,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:46,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:46,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152282186] [2022-07-21 06:05:46,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152282186] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:46,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:46,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:46,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915997266] [2022-07-21 06:05:46,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:46,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:46,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:46,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:46,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:46,870 INFO L87 Difference]: Start difference. First operand 1257 states and 1670 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) [2022-07-21 06:05:47,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:47,356 INFO L93 Difference]: Finished difference Result 1801 states and 2409 transitions. [2022-07-21 06:05:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:47,357 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 [2022-07-21 06:05:47,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:47,361 INFO L225 Difference]: With dead ends: 1801 [2022-07-21 06:05:47,361 INFO L226 Difference]: Without dead ends: 1122 [2022-07-21 06:05:47,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:47,364 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 3035 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3035 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:47,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3035 Valid, 597 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:47,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-07-21 06:05:47,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 1122. [2022-07-21 06:05:47,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1122 states, 1100 states have (on average 1.3681818181818182) internal successors, (1505), 1121 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:47,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1122 states to 1122 states and 1505 transitions. [2022-07-21 06:05:47,425 INFO L78 Accepts]: Start accepts. Automaton has 1122 states and 1505 transitions. Word has length 89 [2022-07-21 06:05:47,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:47,425 INFO L495 AbstractCegarLoop]: Abstraction has 1122 states and 1505 transitions. [2022-07-21 06:05:47,425 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) [2022-07-21 06:05:47,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1122 states and 1505 transitions. [2022-07-21 06:05:47,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-21 06:05:47,428 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:47,428 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] [2022-07-21 06:05:47,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 06:05:47,428 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:47,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:47,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1455647616, now seen corresponding path program 1 times [2022-07-21 06:05:47,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:47,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620369556] [2022-07-21 06:05:47,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:47,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:47,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:47,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:47,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:47,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620369556] [2022-07-21 06:05:47,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620369556] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:47,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:47,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:47,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686135167] [2022-07-21 06:05:47,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:47,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:47,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:47,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:47,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:47,560 INFO L87 Difference]: Start difference. First operand 1122 states and 1505 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) [2022-07-21 06:05:48,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:48,005 INFO L93 Difference]: Finished difference Result 1612 states and 2170 transitions. [2022-07-21 06:05:48,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:48,006 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 [2022-07-21 06:05:48,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:48,034 INFO L225 Difference]: With dead ends: 1612 [2022-07-21 06:05:48,034 INFO L226 Difference]: Without dead ends: 1002 [2022-07-21 06:05:48,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:48,039 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 2688 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2688 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:48,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2688 Valid, 557 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:48,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2022-07-21 06:05:48,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 1002. [2022-07-21 06:05:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 980 states have (on average 1.3785714285714286) internal successors, (1351), 1001 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1351 transitions. [2022-07-21 06:05:48,102 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1351 transitions. Word has length 91 [2022-07-21 06:05:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:48,104 INFO L495 AbstractCegarLoop]: Abstraction has 1002 states and 1351 transitions. [2022-07-21 06:05:48,104 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) [2022-07-21 06:05:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1351 transitions. [2022-07-21 06:05:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-07-21 06:05:48,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:48,106 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] [2022-07-21 06:05:48,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 06:05:48,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:48,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:48,108 INFO L85 PathProgramCache]: Analyzing trace with hash 591523847, now seen corresponding path program 1 times [2022-07-21 06:05:48,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:48,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988337536] [2022-07-21 06:05:48,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:48,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:48,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:48,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:48,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988337536] [2022-07-21 06:05:48,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988337536] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:48,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:48,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 06:05:48,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052513124] [2022-07-21 06:05:48,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:48,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 06:05:48,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:48,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 06:05:48,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 06:05:48,245 INFO L87 Difference]: Start difference. First operand 1002 states and 1351 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:48,765 INFO L93 Difference]: Finished difference Result 1453 states and 1960 transitions. [2022-07-21 06:05:48,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 06:05:48,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2022-07-21 06:05:48,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:48,769 INFO L225 Difference]: With dead ends: 1453 [2022-07-21 06:05:48,769 INFO L226 Difference]: Without dead ends: 994 [2022-07-21 06:05:48,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 06:05:48,772 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 2541 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2541 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:48,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2541 Valid, 482 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 06:05:48,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2022-07-21 06:05:48,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 994. [2022-07-21 06:05:48,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3786008230452675) internal successors, (1340), 993 states have internal predecessors, (1340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1340 transitions. [2022-07-21 06:05:48,837 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1340 transitions. Word has length 93 [2022-07-21 06:05:48,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:48,838 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1340 transitions. [2022-07-21 06:05:48,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:48,838 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1340 transitions. [2022-07-21 06:05:48,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:48,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:48,840 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] [2022-07-21 06:05:48,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 06:05:48,841 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:48,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:48,841 INFO L85 PathProgramCache]: Analyzing trace with hash 328441748, now seen corresponding path program 1 times [2022-07-21 06:05:48,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:48,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167728542] [2022-07-21 06:05:48,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:48,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:49,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:49,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:49,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167728542] [2022-07-21 06:05:49,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167728542] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:49,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:49,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 06:05:49,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350134876] [2022-07-21 06:05:49,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:49,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:05:49,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:49,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:05:49,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:05:49,048 INFO L87 Difference]: Start difference. First operand 994 states and 1340 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:50,029 INFO L93 Difference]: Finished difference Result 1809 states and 2377 transitions. [2022-07-21 06:05:50,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:05:50,030 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:50,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:50,035 INFO L225 Difference]: With dead ends: 1809 [2022-07-21 06:05:50,035 INFO L226 Difference]: Without dead ends: 1357 [2022-07-21 06:05:50,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-07-21 06:05:50,037 INFO L413 NwaCegarLoop]: 469 mSDtfsCounter, 5229 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 1229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:50,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5229 Valid, 1187 Invalid, 1229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:05:50,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1357 states. [2022-07-21 06:05:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1357 to 994. [2022-07-21 06:05:50,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3775720164609053) internal successors, (1339), 993 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1339 transitions. [2022-07-21 06:05:50,123 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1339 transitions. Word has length 95 [2022-07-21 06:05:50,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:50,123 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1339 transitions. [2022-07-21 06:05:50,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 7 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:50,124 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1339 transitions. [2022-07-21 06:05:50,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:50,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:50,126 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] [2022-07-21 06:05:50,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 06:05:50,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:50,127 INFO L85 PathProgramCache]: Analyzing trace with hash 556118932, now seen corresponding path program 1 times [2022-07-21 06:05:50,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:50,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425367101] [2022-07-21 06:05:50,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:50,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:50,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:50,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:50,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425367101] [2022-07-21 06:05:50,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425367101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:50,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:50,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:50,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562761057] [2022-07-21 06:05:50,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:50,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:50,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:50,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:50,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:50,322 INFO L87 Difference]: Start difference. First operand 994 states and 1339 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:51,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:51,971 INFO L93 Difference]: Finished difference Result 2036 states and 2784 transitions. [2022-07-21 06:05:51,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:05:51,972 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:51,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:51,978 INFO L225 Difference]: With dead ends: 2036 [2022-07-21 06:05:51,979 INFO L226 Difference]: Without dead ends: 1874 [2022-07-21 06:05:51,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:05:51,980 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 5180 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 2374 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 3045 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 2374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:51,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 3045 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 2374 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:05:51,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1874 states. [2022-07-21 06:05:52,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1874 to 1009. [2022-07-21 06:05:52,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1009 states, 987 states have (on average 1.3779128672745693) internal successors, (1360), 1008 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1360 transitions. [2022-07-21 06:05:52,093 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1360 transitions. Word has length 95 [2022-07-21 06:05:52,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:52,093 INFO L495 AbstractCegarLoop]: Abstraction has 1009 states and 1360 transitions. [2022-07-21 06:05:52,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1360 transitions. [2022-07-21 06:05:52,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:52,096 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:52,096 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] [2022-07-21 06:05:52,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 06:05:52,096 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:52,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash -1407707980, now seen corresponding path program 1 times [2022-07-21 06:05:52,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:52,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553944677] [2022-07-21 06:05:52,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:52,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:52,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:52,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553944677] [2022-07-21 06:05:52,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553944677] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:52,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:52,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:52,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400480016] [2022-07-21 06:05:52,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:52,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:52,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:52,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:52,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:52,336 INFO L87 Difference]: Start difference. First operand 1009 states and 1360 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:53,993 INFO L93 Difference]: Finished difference Result 2067 states and 2816 transitions. [2022-07-21 06:05:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:05:53,994 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:54,001 INFO L225 Difference]: With dead ends: 2067 [2022-07-21 06:05:54,002 INFO L226 Difference]: Without dead ends: 1900 [2022-07-21 06:05:54,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:05:54,004 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 7300 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 2532 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7300 SdHoareTripleChecker+Valid, 3324 SdHoareTripleChecker+Invalid, 2690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 2532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:54,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7300 Valid, 3324 Invalid, 2690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 2532 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:05:54,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-07-21 06:05:54,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1014. [2022-07-21 06:05:54,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 992 states have (on average 1.376008064516129) internal successors, (1365), 1013 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1365 transitions. [2022-07-21 06:05:54,122 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1365 transitions. Word has length 95 [2022-07-21 06:05:54,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:54,122 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1365 transitions. [2022-07-21 06:05:54,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1365 transitions. [2022-07-21 06:05:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:54,126 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:54,127 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] [2022-07-21 06:05:54,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 06:05:54,127 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:54,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:54,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1248781324, now seen corresponding path program 1 times [2022-07-21 06:05:54,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:54,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854538807] [2022-07-21 06:05:54,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:54,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:54,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:54,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:54,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854538807] [2022-07-21 06:05:54,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854538807] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:54,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:54,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:54,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869050946] [2022-07-21 06:05:54,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:54,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:54,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:54,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:54,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:54,317 INFO L87 Difference]: Start difference. First operand 1014 states and 1365 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:55,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:55,804 INFO L93 Difference]: Finished difference Result 2012 states and 2728 transitions. [2022-07-21 06:05:55,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:05:55,805 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:55,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:55,812 INFO L225 Difference]: With dead ends: 2012 [2022-07-21 06:05:55,812 INFO L226 Difference]: Without dead ends: 1858 [2022-07-21 06:05:55,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:05:55,813 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 6425 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 265 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6425 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 2761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 265 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:55,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6425 Valid, 3072 Invalid, 2761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [265 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 06:05:55,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2022-07-21 06:05:55,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1018. [2022-07-21 06:05:55,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 996 states have (on average 1.3765060240963856) internal successors, (1371), 1017 states have internal predecessors, (1371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:55,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1371 transitions. [2022-07-21 06:05:55,928 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1371 transitions. Word has length 95 [2022-07-21 06:05:55,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:55,928 INFO L495 AbstractCegarLoop]: Abstraction has 1018 states and 1371 transitions. [2022-07-21 06:05:55,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:55,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1371 transitions. [2022-07-21 06:05:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:55,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:55,931 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] [2022-07-21 06:05:55,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 06:05:55,932 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)] === [2022-07-21 06:05:55,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash -65064876, now seen corresponding path program 1 times [2022-07-21 06:05:55,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:55,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537816599] [2022-07-21 06:05:55,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:55,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:56,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:56,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537816599] [2022-07-21 06:05:56,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537816599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:56,095 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:56,095 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:05:56,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430241213] [2022-07-21 06:05:56,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:56,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:05:56,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:56,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:05:56,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:05:56,096 INFO L87 Difference]: Start difference. First operand 1018 states and 1371 transitions. Second operand has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:57,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:57,662 INFO L93 Difference]: Finished difference Result 2020 states and 2737 transitions. [2022-07-21 06:05:57,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-21 06:05:57,662 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:57,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:57,670 INFO L225 Difference]: With dead ends: 2020 [2022-07-21 06:05:57,670 INFO L226 Difference]: Without dead ends: 1866 [2022-07-21 06:05:57,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:05:57,672 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 4984 mSDsluCounter, 3030 mSDsCounter, 0 mSdLazyCounter, 2981 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4984 SdHoareTripleChecker+Valid, 3626 SdHoareTripleChecker+Invalid, 3177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 2981 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:57,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4984 Valid, 3626 Invalid, 3177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 2981 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:05:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1866 states. [2022-07-21 06:05:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1866 to 1034. [2022-07-21 06:05:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1012 states have (on average 1.3764822134387351) internal successors, (1393), 1033 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:57,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1393 transitions. [2022-07-21 06:05:57,791 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1393 transitions. Word has length 95 [2022-07-21 06:05:57,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:57,792 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1393 transitions. [2022-07-21 06:05:57,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.916666666666667) internal successors, (95), 11 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:57,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1393 transitions. [2022-07-21 06:05:57,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-07-21 06:05:57,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:57,794 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] [2022-07-21 06:05:57,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 06:05:57,795 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:57,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:57,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1071889132, now seen corresponding path program 1 times [2022-07-21 06:05:57,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:57,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425867646] [2022-07-21 06:05:57,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:57,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:57,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:57,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:57,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:57,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425867646] [2022-07-21 06:05:57,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425867646] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:57,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:57,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:57,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817280040] [2022-07-21 06:05:57,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:57,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:57,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:57,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:57,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:57,937 INFO L87 Difference]: Start difference. First operand 1034 states and 1393 transitions. Second operand has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:05:59,221 INFO L93 Difference]: Finished difference Result 1815 states and 2452 transitions. [2022-07-21 06:05:59,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:05:59,223 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-07-21 06:05:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:05:59,230 INFO L225 Difference]: With dead ends: 1815 [2022-07-21 06:05:59,230 INFO L226 Difference]: Without dead ends: 1809 [2022-07-21 06:05:59,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:05:59,233 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 3792 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3792 SdHoareTripleChecker+Valid, 2460 SdHoareTripleChecker+Invalid, 2059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:05:59,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3792 Valid, 2460 Invalid, 2059 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:05:59,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2022-07-21 06:05:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1034. [2022-07-21 06:05:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1034 states, 1012 states have (on average 1.3754940711462451) internal successors, (1392), 1033 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1392 transitions. [2022-07-21 06:05:59,355 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1392 transitions. Word has length 95 [2022-07-21 06:05:59,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:05:59,355 INFO L495 AbstractCegarLoop]: Abstraction has 1034 states and 1392 transitions. [2022-07-21 06:05:59,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.555555555555555) internal successors, (95), 8 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:05:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1392 transitions. [2022-07-21 06:05:59,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:05:59,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:05:59,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:05:59,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 06:05:59,358 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:05:59,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:05:59,359 INFO L85 PathProgramCache]: Analyzing trace with hash -485803098, now seen corresponding path program 1 times [2022-07-21 06:05:59,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:05:59,359 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853486486] [2022-07-21 06:05:59,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:05:59,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:05:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:05:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:05:59,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:05:59,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853486486] [2022-07-21 06:05:59,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853486486] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:05:59,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:05:59,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:05:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060207012] [2022-07-21 06:05:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:05:59,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:05:59,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:05:59,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:05:59,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:05:59,549 INFO L87 Difference]: Start difference. First operand 1034 states and 1392 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) [2022-07-21 06:06:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:00,843 INFO L93 Difference]: Finished difference Result 1506 states and 2069 transitions. [2022-07-21 06:06:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:00,844 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 [2022-07-21 06:06:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:00,847 INFO L225 Difference]: With dead ends: 1506 [2022-07-21 06:06:00,847 INFO L226 Difference]: Without dead ends: 1224 [2022-07-21 06:06:00,848 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 [2022-07-21 06:06:00,849 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 3155 mSDsluCounter, 2426 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3155 SdHoareTripleChecker+Valid, 2963 SdHoareTripleChecker+Invalid, 2114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:00,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3155 Valid, 2963 Invalid, 2114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:00,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2022-07-21 06:06:00,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 994. [2022-07-21 06:06:00,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.375514403292181) internal successors, (1337), 993 states have internal predecessors, (1337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1337 transitions. [2022-07-21 06:06:00,977 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1337 transitions. Word has length 96 [2022-07-21 06:06:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:00,977 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1337 transitions. [2022-07-21 06:06:00,978 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) [2022-07-21 06:06:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1337 transitions. [2022-07-21 06:06:00,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:00,980 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:00,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:00,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 06:06:00,981 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:00,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:00,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1164032538, now seen corresponding path program 1 times [2022-07-21 06:06:00,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:00,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996497648] [2022-07-21 06:06:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:00,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:01,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:01,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996497648] [2022-07-21 06:06:01,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996497648] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:01,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:01,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:01,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319429100] [2022-07-21 06:06:01,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:01,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:01,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:01,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:01,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:01,135 INFO L87 Difference]: Start difference. First operand 994 states and 1337 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) [2022-07-21 06:06:02,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:02,346 INFO L93 Difference]: Finished difference Result 1915 states and 2608 transitions. [2022-07-21 06:06:02,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:02,350 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 [2022-07-21 06:06:02,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:02,354 INFO L225 Difference]: With dead ends: 1915 [2022-07-21 06:06:02,355 INFO L226 Difference]: Without dead ends: 1764 [2022-07-21 06:06:02,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:02,356 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2650 mSDsluCounter, 1790 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 2361 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:02,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 2361 Invalid, 1942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:02,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-21 06:06:02,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-21 06:06:02,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.374485596707819) internal successors, (1336), 993 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:02,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1336 transitions. [2022-07-21 06:06:02,470 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1336 transitions. Word has length 96 [2022-07-21 06:06:02,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:02,470 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1336 transitions. [2022-07-21 06:06:02,470 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) [2022-07-21 06:06:02,470 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1336 transitions. [2022-07-21 06:06:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:02,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:02,473 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] [2022-07-21 06:06:02,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 06:06:02,473 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash -666876154, now seen corresponding path program 1 times [2022-07-21 06:06:02,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:02,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286217036] [2022-07-21 06:06:02,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:02,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:02,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:02,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286217036] [2022-07-21 06:06:02,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286217036] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:02,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:02,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:02,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565893714] [2022-07-21 06:06:02,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:02,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:02,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:02,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:02,603 INFO L87 Difference]: Start difference. First operand 994 states and 1336 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) [2022-07-21 06:06:03,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:03,773 INFO L93 Difference]: Finished difference Result 1915 states and 2606 transitions. [2022-07-21 06:06:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:03,774 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 [2022-07-21 06:06:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:03,778 INFO L225 Difference]: With dead ends: 1915 [2022-07-21 06:06:03,778 INFO L226 Difference]: Without dead ends: 1764 [2022-07-21 06:06:03,779 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 [2022-07-21 06:06:03,779 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 2643 mSDsluCounter, 1793 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2643 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 1935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:03,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2643 Valid, 2364 Invalid, 1935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-21 06:06:03,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-21 06:06:03,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.373456790123457) internal successors, (1335), 993 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:03,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1335 transitions. [2022-07-21 06:06:03,879 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1335 transitions. Word has length 96 [2022-07-21 06:06:03,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:03,880 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1335 transitions. [2022-07-21 06:06:03,880 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) [2022-07-21 06:06:03,880 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1335 transitions. [2022-07-21 06:06:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:03,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:03,882 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] [2022-07-21 06:06:03,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-21 06:06:03,883 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:03,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:03,883 INFO L85 PathProgramCache]: Analyzing trace with hash 712350950, now seen corresponding path program 1 times [2022-07-21 06:06:03,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:03,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345946936] [2022-07-21 06:06:03,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:03,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:04,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:04,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:04,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345946936] [2022-07-21 06:06:04,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345946936] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:04,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:04,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:04,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912379457] [2022-07-21 06:06:04,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:04,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:04,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:04,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:04,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:04,005 INFO L87 Difference]: Start difference. First operand 994 states and 1335 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) [2022-07-21 06:06:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:05,186 INFO L93 Difference]: Finished difference Result 1974 states and 2700 transitions. [2022-07-21 06:06:05,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:05,187 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 [2022-07-21 06:06:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:05,193 INFO L225 Difference]: With dead ends: 1974 [2022-07-21 06:06:05,193 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:06:05,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:05,194 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2647 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1831 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2647 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:05,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2647 Valid, 2490 Invalid, 1898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1831 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:06:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-21 06:06:05,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3724279835390947) internal successors, (1334), 993 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) [2022-07-21 06:06:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1334 transitions. [2022-07-21 06:06:05,307 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1334 transitions. Word has length 96 [2022-07-21 06:06:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:05,307 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1334 transitions. [2022-07-21 06:06:05,308 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) [2022-07-21 06:06:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1334 transitions. [2022-07-21 06:06:05,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-07-21 06:06:05,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:05,310 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] [2022-07-21 06:06:05,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-21 06:06:05,311 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:05,312 INFO L85 PathProgramCache]: Analyzing trace with hash -970429882, now seen corresponding path program 1 times [2022-07-21 06:06:05,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:05,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663937006] [2022-07-21 06:06:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:05,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:05,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:05,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:05,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663937006] [2022-07-21 06:06:05,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663937006] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:05,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:05,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:05,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805663143] [2022-07-21 06:06:05,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:05,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:05,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:05,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:05,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:05,438 INFO L87 Difference]: Start difference. First operand 994 states and 1334 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) [2022-07-21 06:06:06,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:06,710 INFO L93 Difference]: Finished difference Result 1970 states and 2696 transitions. [2022-07-21 06:06:06,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:06,710 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 [2022-07-21 06:06:06,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:06,715 INFO L225 Difference]: With dead ends: 1970 [2022-07-21 06:06:06,716 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:06:06,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:06,717 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3912 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3912 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:06,717 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3912 Valid, 2496 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:06,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:06:06,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-21 06:06:06,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3713991769547325) internal successors, (1333), 993 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:06,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1333 transitions. [2022-07-21 06:06:06,854 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1333 transitions. Word has length 96 [2022-07-21 06:06:06,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:06,855 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1333 transitions. [2022-07-21 06:06:06,855 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) [2022-07-21 06:06:06,855 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1333 transitions. [2022-07-21 06:06:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:06,857 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:06,858 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] [2022-07-21 06:06:06,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 06:06:06,858 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:06,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:06,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1887012889, now seen corresponding path program 1 times [2022-07-21 06:06:06,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:06,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570818836] [2022-07-21 06:06:06,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:06,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:06,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:07,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:07,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570818836] [2022-07-21 06:06:07,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570818836] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:07,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:07,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 06:06:07,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689637547] [2022-07-21 06:06:07,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:07,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 06:06:07,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 06:06:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:06:07,026 INFO L87 Difference]: Start difference. First operand 994 states and 1333 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 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) [2022-07-21 06:06:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:08,416 INFO L93 Difference]: Finished difference Result 1895 states and 2615 transitions. [2022-07-21 06:06:08,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-21 06:06:08,416 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 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 [2022-07-21 06:06:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:08,420 INFO L225 Difference]: With dead ends: 1895 [2022-07-21 06:06:08,420 INFO L226 Difference]: Without dead ends: 1464 [2022-07-21 06:06:08,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=176, Invalid=474, Unknown=0, NotChecked=0, Total=650 [2022-07-21 06:06:08,421 INFO L413 NwaCegarLoop]: 666 mSDtfsCounter, 3648 mSDsluCounter, 2465 mSDsCounter, 0 mSdLazyCounter, 2270 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3648 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:08,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3648 Valid, 3131 Invalid, 2319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2270 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2022-07-21 06:06:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 994. [2022-07-21 06:06:08,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3693415637860082) internal successors, (1331), 993 states have internal predecessors, (1331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:08,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1331 transitions. [2022-07-21 06:06:08,575 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1331 transitions. Word has length 97 [2022-07-21 06:06:08,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:08,575 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1331 transitions. [2022-07-21 06:06:08,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 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) [2022-07-21 06:06:08,575 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1331 transitions. [2022-07-21 06:06:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:08,578 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:08,578 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] [2022-07-21 06:06:08,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-07-21 06:06:08,578 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:08,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2083812519, now seen corresponding path program 1 times [2022-07-21 06:06:08,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:08,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564971344] [2022-07-21 06:06:08,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:08,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:08,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:08,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:08,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564971344] [2022-07-21 06:06:08,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564971344] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:08,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:08,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598549853] [2022-07-21 06:06:08,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:08,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:08,703 INFO L87 Difference]: Start difference. First operand 994 states and 1331 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) [2022-07-21 06:06:09,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:09,860 INFO L93 Difference]: Finished difference Result 1770 states and 2383 transitions. [2022-07-21 06:06:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:09,861 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 [2022-07-21 06:06:09,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:09,865 INFO L225 Difference]: With dead ends: 1770 [2022-07-21 06:06:09,865 INFO L226 Difference]: Without dead ends: 1764 [2022-07-21 06:06:09,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:09,866 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 4953 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4953 SdHoareTripleChecker+Valid, 2424 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:09,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4953 Valid, 2424 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:09,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-21 06:06:09,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-21 06:06:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.367283950617284) internal successors, (1329), 993 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:10,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1329 transitions. [2022-07-21 06:06:10,002 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1329 transitions. Word has length 97 [2022-07-21 06:06:10,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:10,003 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1329 transitions. [2022-07-21 06:06:10,003 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) [2022-07-21 06:06:10,003 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1329 transitions. [2022-07-21 06:06:10,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:10,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:10,005 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] [2022-07-21 06:06:10,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-21 06:06:10,006 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)] === [2022-07-21 06:06:10,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:10,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1112735129, now seen corresponding path program 1 times [2022-07-21 06:06:10,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:10,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725357375] [2022-07-21 06:06:10,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:10,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:10,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:10,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:10,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725357375] [2022-07-21 06:06:10,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725357375] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:10,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:10,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:10,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5188448] [2022-07-21 06:06:10,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:10,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:10,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:10,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:10,123 INFO L87 Difference]: Start difference. First operand 994 states and 1329 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) [2022-07-21 06:06:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:11,315 INFO L93 Difference]: Finished difference Result 1831 states and 2476 transitions. [2022-07-21 06:06:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:11,315 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 [2022-07-21 06:06:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:11,318 INFO L225 Difference]: With dead ends: 1831 [2022-07-21 06:06:11,319 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:06:11,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:11,320 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2654 mSDsluCounter, 1896 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2654 SdHoareTripleChecker+Valid, 2483 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:11,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2654 Valid, 2483 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:06:11,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-21 06:06:11,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3652263374485596) internal successors, (1327), 993 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:11,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1327 transitions. [2022-07-21 06:06:11,452 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1327 transitions. Word has length 97 [2022-07-21 06:06:11,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:11,452 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1327 transitions. [2022-07-21 06:06:11,452 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) [2022-07-21 06:06:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1327 transitions. [2022-07-21 06:06:11,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:11,454 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:11,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:11,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-07-21 06:06:11,455 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:11,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:11,455 INFO L85 PathProgramCache]: Analyzing trace with hash 759964249, now seen corresponding path program 1 times [2022-07-21 06:06:11,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:11,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474558576] [2022-07-21 06:06:11,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:11,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:11,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:11,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474558576] [2022-07-21 06:06:11,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474558576] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:11,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:11,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:11,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881973493] [2022-07-21 06:06:11,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:11,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:11,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:11,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:11,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:11,586 INFO L87 Difference]: Start difference. First operand 994 states and 1327 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) [2022-07-21 06:06:12,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:12,759 INFO L93 Difference]: Finished difference Result 1770 states and 2377 transitions. [2022-07-21 06:06:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:12,760 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 [2022-07-21 06:06:12,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:12,763 INFO L225 Difference]: With dead ends: 1770 [2022-07-21 06:06:12,763 INFO L226 Difference]: Without dead ends: 1764 [2022-07-21 06:06:12,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:12,765 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 3724 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 1856 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3724 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:12,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3724 Valid, 2482 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1856 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:12,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1764 states. [2022-07-21 06:06:12,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1764 to 994. [2022-07-21 06:06:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3631687242798354) internal successors, (1325), 993 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1325 transitions. [2022-07-21 06:06:12,895 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1325 transitions. Word has length 97 [2022-07-21 06:06:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:12,895 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1325 transitions. [2022-07-21 06:06:12,895 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) [2022-07-21 06:06:12,896 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1325 transitions. [2022-07-21 06:06:12,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:12,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:12,898 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] [2022-07-21 06:06:12,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-07-21 06:06:12,898 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -639309095, now seen corresponding path program 1 times [2022-07-21 06:06:12,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:12,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027433511] [2022-07-21 06:06:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:12,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:13,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:13,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:13,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027433511] [2022-07-21 06:06:13,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027433511] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:13,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:13,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:13,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134287630] [2022-07-21 06:06:13,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:13,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:13,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:13,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:13,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:13,018 INFO L87 Difference]: Start difference. First operand 994 states and 1325 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) [2022-07-21 06:06:14,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:14,235 INFO L93 Difference]: Finished difference Result 1981 states and 2694 transitions. [2022-07-21 06:06:14,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:14,235 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 [2022-07-21 06:06:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:14,238 INFO L225 Difference]: With dead ends: 1981 [2022-07-21 06:06:14,238 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:06:14,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:14,240 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 5180 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:14,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 2493 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:06:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 994. [2022-07-21 06:06:14,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 994 states, 972 states have (on average 1.3611111111111112) internal successors, (1323), 993 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 994 states to 994 states and 1323 transitions. [2022-07-21 06:06:14,405 INFO L78 Accepts]: Start accepts. Automaton has 994 states and 1323 transitions. Word has length 97 [2022-07-21 06:06:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:14,405 INFO L495 AbstractCegarLoop]: Abstraction has 994 states and 1323 transitions. [2022-07-21 06:06:14,405 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) [2022-07-21 06:06:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 994 states and 1323 transitions. [2022-07-21 06:06:14,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:14,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:14,409 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] [2022-07-21 06:06:14,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-07-21 06:06:14,409 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:14,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:14,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1525936807, now seen corresponding path program 1 times [2022-07-21 06:06:14,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:14,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857379223] [2022-07-21 06:06:14,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:14,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:14,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:14,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:14,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857379223] [2022-07-21 06:06:14,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857379223] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:14,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:14,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:14,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416095399] [2022-07-21 06:06:14,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:14,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:14,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:14,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:14,529 INFO L87 Difference]: Start difference. First operand 994 states and 1323 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) [2022-07-21 06:06:15,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:15,750 INFO L93 Difference]: Finished difference Result 1912 states and 2588 transitions. [2022-07-21 06:06:15,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:15,751 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 [2022-07-21 06:06:15,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:15,754 INFO L225 Difference]: With dead ends: 1912 [2022-07-21 06:06:15,754 INFO L226 Difference]: Without dead ends: 1763 [2022-07-21 06:06:15,754 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 [2022-07-21 06:06:15,755 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 2547 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2547 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:15,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2547 Valid, 2521 Invalid, 1992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:15,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2022-07-21 06:06:15,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 993. [2022-07-21 06:06:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.360453141091658) internal successors, (1321), 992 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:15,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1321 transitions. [2022-07-21 06:06:15,902 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1321 transitions. Word has length 97 [2022-07-21 06:06:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:15,902 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1321 transitions. [2022-07-21 06:06:15,902 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) [2022-07-21 06:06:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1321 transitions. [2022-07-21 06:06:15,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:15,904 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:15,904 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] [2022-07-21 06:06:15,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-21 06:06:15,905 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:15,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:15,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1939604839, now seen corresponding path program 1 times [2022-07-21 06:06:15,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:15,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403526967] [2022-07-21 06:06:15,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:15,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:16,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:16,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403526967] [2022-07-21 06:06:16,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403526967] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:16,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:16,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:16,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155921646] [2022-07-21 06:06:16,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:16,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:16,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:16,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:16,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:16,020 INFO L87 Difference]: Start difference. First operand 993 states and 1321 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) [2022-07-21 06:06:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:17,191 INFO L93 Difference]: Finished difference Result 1967 states and 2674 transitions. [2022-07-21 06:06:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:17,191 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 [2022-07-21 06:06:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:17,195 INFO L225 Difference]: With dead ends: 1967 [2022-07-21 06:06:17,195 INFO L226 Difference]: Without dead ends: 1810 [2022-07-21 06:06:17,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:17,196 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2591 mSDsluCounter, 1910 mSDsCounter, 0 mSdLazyCounter, 1786 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2591 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:17,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2591 Valid, 2497 Invalid, 1853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1786 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:17,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2022-07-21 06:06:17,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 993. [2022-07-21 06:06:17,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.3594232749742534) internal successors, (1320), 992 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1320 transitions. [2022-07-21 06:06:17,347 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1320 transitions. Word has length 97 [2022-07-21 06:06:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:17,347 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1320 transitions. [2022-07-21 06:06:17,347 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) [2022-07-21 06:06:17,347 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1320 transitions. [2022-07-21 06:06:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:17,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:17,349 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] [2022-07-21 06:06:17,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-07-21 06:06:17,350 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:17,350 INFO L85 PathProgramCache]: Analyzing trace with hash -796530713, now seen corresponding path program 1 times [2022-07-21 06:06:17,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:17,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186642001] [2022-07-21 06:06:17,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:17,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:17,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:17,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:17,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186642001] [2022-07-21 06:06:17,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186642001] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:17,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:17,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862395078] [2022-07-21 06:06:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:17,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:17,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:17,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:17,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:17,504 INFO L87 Difference]: Start difference. First operand 993 states and 1320 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) [2022-07-21 06:06:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:18,967 INFO L93 Difference]: Finished difference Result 2071 states and 2838 transitions. [2022-07-21 06:06:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:18,967 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 [2022-07-21 06:06:18,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:18,971 INFO L225 Difference]: With dead ends: 2071 [2022-07-21 06:06:18,971 INFO L226 Difference]: Without dead ends: 1865 [2022-07-21 06:06:18,972 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 [2022-07-21 06:06:18,973 INFO L413 NwaCegarLoop]: 871 mSDtfsCounter, 4071 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 2529 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4071 SdHoareTripleChecker+Valid, 3627 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:18,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4071 Valid, 3627 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2529 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:18,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-07-21 06:06:19,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 993. [2022-07-21 06:06:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 971 states have (on average 1.3583934088568486) internal successors, (1319), 992 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1319 transitions. [2022-07-21 06:06:19,151 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1319 transitions. Word has length 97 [2022-07-21 06:06:19,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:19,151 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1319 transitions. [2022-07-21 06:06:19,151 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) [2022-07-21 06:06:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1319 transitions. [2022-07-21 06:06:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:19,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:19,152 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] [2022-07-21 06:06:19,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-07-21 06:06:19,153 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:19,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1267448231, now seen corresponding path program 1 times [2022-07-21 06:06:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:19,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527620408] [2022-07-21 06:06:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:19,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:19,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527620408] [2022-07-21 06:06:19,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527620408] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:19,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:19,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:19,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570494275] [2022-07-21 06:06:19,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:19,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:19,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:19,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:19,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:19,339 INFO L87 Difference]: Start difference. First operand 993 states and 1319 transitions. Second operand has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2022-07-21 06:06:22,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:22,076 INFO L93 Difference]: Finished difference Result 3381 states and 4747 transitions. [2022-07-21 06:06:22,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:22,077 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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 [2022-07-21 06:06:22,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:22,082 INFO L225 Difference]: With dead ends: 3381 [2022-07-21 06:06:22,082 INFO L226 Difference]: Without dead ends: 3161 [2022-07-21 06:06:22,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:22,084 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 8800 mSDsluCounter, 3203 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8800 SdHoareTripleChecker+Valid, 4225 SdHoareTripleChecker+Invalid, 3613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:22,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8800 Valid, 4225 Invalid, 3613 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 06:06:22,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3161 states. [2022-07-21 06:06:22,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3161 to 998. [2022-07-21 06:06:22,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3565573770491803) internal successors, (1324), 997 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:22,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1324 transitions. [2022-07-21 06:06:22,312 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1324 transitions. Word has length 97 [2022-07-21 06:06:22,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:22,313 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1324 transitions. [2022-07-21 06:06:22,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.083333333333334) internal successors, (97), 11 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) [2022-07-21 06:06:22,313 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1324 transitions. [2022-07-21 06:06:22,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-07-21 06:06:22,314 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:22,314 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] [2022-07-21 06:06:22,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-07-21 06:06:22,314 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:22,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:22,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1888632039, now seen corresponding path program 1 times [2022-07-21 06:06:22,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:22,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586934380] [2022-07-21 06:06:22,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:22,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:22,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:22,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:22,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586934380] [2022-07-21 06:06:22,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586934380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:22,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:22,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:22,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048934648] [2022-07-21 06:06:22,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:22,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:22,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:22,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:22,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:22,432 INFO L87 Difference]: Start difference. First operand 998 states and 1324 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) [2022-07-21 06:06:23,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:23,730 INFO L93 Difference]: Finished difference Result 1922 states and 2595 transitions. [2022-07-21 06:06:23,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:23,731 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 [2022-07-21 06:06:23,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:23,734 INFO L225 Difference]: With dead ends: 1922 [2022-07-21 06:06:23,734 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 06:06:23,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:23,735 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 2540 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1879 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2540 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:23,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2540 Valid, 2544 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1879 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:23,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 06:06:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-21 06:06:23,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3555327868852458) internal successors, (1323), 997 states have internal predecessors, (1323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:23,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1323 transitions. [2022-07-21 06:06:23,938 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1323 transitions. Word has length 97 [2022-07-21 06:06:23,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:23,938 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1323 transitions. [2022-07-21 06:06:23,938 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) [2022-07-21 06:06:23,938 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1323 transitions. [2022-07-21 06:06:23,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:23,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:23,940 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:23,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-07-21 06:06:23,940 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:23,941 INFO L85 PathProgramCache]: Analyzing trace with hash -983974751, now seen corresponding path program 1 times [2022-07-21 06:06:23,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:23,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744831139] [2022-07-21 06:06:23,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:23,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:24,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:24,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:24,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744831139] [2022-07-21 06:06:24,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744831139] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:24,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:24,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:24,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068333928] [2022-07-21 06:06:24,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:24,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:24,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:24,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:24,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:24,050 INFO L87 Difference]: Start difference. First operand 998 states and 1323 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) [2022-07-21 06:06:25,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:25,406 INFO L93 Difference]: Finished difference Result 1922 states and 2593 transitions. [2022-07-21 06:06:25,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:25,406 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 [2022-07-21 06:06:25,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:25,409 INFO L225 Difference]: With dead ends: 1922 [2022-07-21 06:06:25,409 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 06:06:25,410 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 [2022-07-21 06:06:25,410 INFO L413 NwaCegarLoop]: 619 mSDtfsCounter, 3637 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3637 SdHoareTripleChecker+Valid, 2551 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:25,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3637 Valid, 2551 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:25,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 06:06:25,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-21 06:06:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.353483606557377) internal successors, (1321), 997 states have internal predecessors, (1321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:25,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1321 transitions. [2022-07-21 06:06:25,636 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1321 transitions. Word has length 98 [2022-07-21 06:06:25,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:25,636 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1321 transitions. [2022-07-21 06:06:25,636 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) [2022-07-21 06:06:25,636 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1321 transitions. [2022-07-21 06:06:25,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:25,637 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:25,637 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] [2022-07-21 06:06:25,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-21 06:06:25,638 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:25,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash -594891711, now seen corresponding path program 1 times [2022-07-21 06:06:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:25,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123242308] [2022-07-21 06:06:25,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:25,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:25,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:25,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123242308] [2022-07-21 06:06:25,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123242308] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:25,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:25,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:25,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429898073] [2022-07-21 06:06:25,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:25,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:25,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:25,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:25,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:25,750 INFO L87 Difference]: Start difference. First operand 998 states and 1321 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) [2022-07-21 06:06:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:27,022 INFO L93 Difference]: Finished difference Result 1984 states and 2683 transitions. [2022-07-21 06:06:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:27,022 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 [2022-07-21 06:06:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:27,026 INFO L225 Difference]: With dead ends: 1984 [2022-07-21 06:06:27,026 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:27,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:27,028 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3887 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3887 SdHoareTripleChecker+Valid, 2490 SdHoareTripleChecker+Invalid, 1875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:27,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3887 Valid, 2490 Invalid, 1875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:27,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3514344262295082) internal successors, (1319), 997 states have internal predecessors, (1319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1319 transitions. [2022-07-21 06:06:27,291 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1319 transitions. Word has length 98 [2022-07-21 06:06:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:27,291 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1319 transitions. [2022-07-21 06:06:27,291 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) [2022-07-21 06:06:27,291 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1319 transitions. [2022-07-21 06:06:27,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:27,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:27,293 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] [2022-07-21 06:06:27,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-21 06:06:27,293 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:27,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:27,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1325336959, now seen corresponding path program 1 times [2022-07-21 06:06:27,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:27,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253723934] [2022-07-21 06:06:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:27,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:27,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:27,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:27,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253723934] [2022-07-21 06:06:27,406 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253723934] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:27,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:27,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:27,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437952138] [2022-07-21 06:06:27,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:27,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:27,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:27,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:27,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:27,408 INFO L87 Difference]: Start difference. First operand 998 states and 1319 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) [2022-07-21 06:06:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:28,744 INFO L93 Difference]: Finished difference Result 1983 states and 2681 transitions. [2022-07-21 06:06:28,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:28,744 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 [2022-07-21 06:06:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:28,746 INFO L225 Difference]: With dead ends: 1983 [2022-07-21 06:06:28,746 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:28,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:28,747 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3851 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1765 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:28,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 2496 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1765 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:28,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:28,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3493852459016393) internal successors, (1317), 997 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1317 transitions. [2022-07-21 06:06:28,958 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1317 transitions. Word has length 98 [2022-07-21 06:06:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:28,959 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1317 transitions. [2022-07-21 06:06:28,959 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) [2022-07-21 06:06:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1317 transitions. [2022-07-21 06:06:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:28,960 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:28,961 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] [2022-07-21 06:06:28,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-21 06:06:28,961 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:28,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:28,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1660924641, now seen corresponding path program 1 times [2022-07-21 06:06:28,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:28,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575396108] [2022-07-21 06:06:28,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:28,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:29,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:29,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:29,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575396108] [2022-07-21 06:06:29,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575396108] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:29,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:29,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:29,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244444178] [2022-07-21 06:06:29,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:29,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:29,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:29,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:29,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:29,083 INFO L87 Difference]: Start difference. First operand 998 states and 1317 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) [2022-07-21 06:06:30,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:30,622 INFO L93 Difference]: Finished difference Result 2123 states and 2893 transitions. [2022-07-21 06:06:30,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:30,622 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 [2022-07-21 06:06:30,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:30,624 INFO L225 Difference]: With dead ends: 2123 [2022-07-21 06:06:30,624 INFO L226 Difference]: Without dead ends: 1865 [2022-07-21 06:06:30,625 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 [2022-07-21 06:06:30,625 INFO L413 NwaCegarLoop]: 779 mSDtfsCounter, 4570 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2168 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4570 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:30,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4570 Valid, 3235 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2168 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2022-07-21 06:06:30,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 998. [2022-07-21 06:06:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3473360655737705) internal successors, (1315), 997 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:30,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1315 transitions. [2022-07-21 06:06:30,802 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1315 transitions. Word has length 98 [2022-07-21 06:06:30,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:30,802 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1315 transitions. [2022-07-21 06:06:30,802 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) [2022-07-21 06:06:30,802 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1315 transitions. [2022-07-21 06:06:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:30,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:30,804 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] [2022-07-21 06:06:30,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-07-21 06:06:30,804 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:30,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:30,804 INFO L85 PathProgramCache]: Analyzing trace with hash -743182655, now seen corresponding path program 1 times [2022-07-21 06:06:30,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:30,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003025912] [2022-07-21 06:06:30,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:30,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:30,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:30,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003025912] [2022-07-21 06:06:30,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003025912] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:30,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:30,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:30,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940142399] [2022-07-21 06:06:30,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:30,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:30,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:30,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:30,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:30,915 INFO L87 Difference]: Start difference. First operand 998 states and 1315 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) [2022-07-21 06:06:32,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:32,238 INFO L93 Difference]: Finished difference Result 1973 states and 2663 transitions. [2022-07-21 06:06:32,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:32,239 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 [2022-07-21 06:06:32,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:32,241 INFO L225 Difference]: With dead ends: 1973 [2022-07-21 06:06:32,241 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:32,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:32,242 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3869 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:32,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 2493 Invalid, 1864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:32,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:32,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:32,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.346311475409836) internal successors, (1314), 997 states have internal predecessors, (1314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1314 transitions. [2022-07-21 06:06:32,469 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1314 transitions. Word has length 98 [2022-07-21 06:06:32,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:32,469 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1314 transitions. [2022-07-21 06:06:32,469 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) [2022-07-21 06:06:32,469 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1314 transitions. [2022-07-21 06:06:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:32,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:32,471 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] [2022-07-21 06:06:32,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-21 06:06:32,472 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)] === [2022-07-21 06:06:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:32,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1926953537, now seen corresponding path program 1 times [2022-07-21 06:06:32,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:32,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641701811] [2022-07-21 06:06:32,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:32,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:32,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:32,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:32,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641701811] [2022-07-21 06:06:32,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641701811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:32,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:32,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:32,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139826657] [2022-07-21 06:06:32,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:32,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:32,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:32,591 INFO L87 Difference]: Start difference. First operand 998 states and 1314 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) [2022-07-21 06:06:34,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:34,192 INFO L93 Difference]: Finished difference Result 1917 states and 2579 transitions. [2022-07-21 06:06:34,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:34,193 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 [2022-07-21 06:06:34,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:34,195 INFO L225 Difference]: With dead ends: 1917 [2022-07-21 06:06:34,195 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 06:06:34,196 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 [2022-07-21 06:06:34,196 INFO L413 NwaCegarLoop]: 642 mSDtfsCounter, 4113 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2321 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4113 SdHoareTripleChecker+Valid, 3280 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:34,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4113 Valid, 3280 Invalid, 2505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2321 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:34,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 06:06:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-21 06:06:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3452868852459017) internal successors, (1313), 997 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:34,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1313 transitions. [2022-07-21 06:06:34,383 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1313 transitions. Word has length 98 [2022-07-21 06:06:34,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:34,384 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1313 transitions. [2022-07-21 06:06:34,384 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) [2022-07-21 06:06:34,384 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1313 transitions. [2022-07-21 06:06:34,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:34,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:34,386 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] [2022-07-21 06:06:34,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-21 06:06:34,386 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:34,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:34,387 INFO L85 PathProgramCache]: Analyzing trace with hash -650592069, now seen corresponding path program 1 times [2022-07-21 06:06:34,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:34,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118479092] [2022-07-21 06:06:34,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:34,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:34,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:34,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118479092] [2022-07-21 06:06:34,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118479092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:34,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:34,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:34,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032855852] [2022-07-21 06:06:34,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:34,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:34,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:34,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:34,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:34,497 INFO L87 Difference]: Start difference. First operand 998 states and 1313 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) [2022-07-21 06:06:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:35,893 INFO L93 Difference]: Finished difference Result 1977 states and 2665 transitions. [2022-07-21 06:06:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:35,893 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 [2022-07-21 06:06:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:35,896 INFO L225 Difference]: With dead ends: 1977 [2022-07-21 06:06:35,896 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:35,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:35,897 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 2570 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2570 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:35,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2570 Valid, 2491 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:35,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:36,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:36,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3442622950819672) internal successors, (1312), 997 states have internal predecessors, (1312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:36,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1312 transitions. [2022-07-21 06:06:36,098 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1312 transitions. Word has length 98 [2022-07-21 06:06:36,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:36,098 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1312 transitions. [2022-07-21 06:06:36,098 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) [2022-07-21 06:06:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1312 transitions. [2022-07-21 06:06:36,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:36,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:36,099 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] [2022-07-21 06:06:36,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-07-21 06:06:36,099 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:36,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:36,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1680548315, now seen corresponding path program 1 times [2022-07-21 06:06:36,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:36,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898931143] [2022-07-21 06:06:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:36,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:36,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:36,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:36,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898931143] [2022-07-21 06:06:36,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898931143] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:36,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:36,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864985231] [2022-07-21 06:06:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:36,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:36,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:36,227 INFO L87 Difference]: Start difference. First operand 998 states and 1312 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) [2022-07-21 06:06:37,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:37,531 INFO L93 Difference]: Finished difference Result 1982 states and 2668 transitions. [2022-07-21 06:06:37,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:37,532 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 [2022-07-21 06:06:37,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:37,533 INFO L225 Difference]: With dead ends: 1982 [2022-07-21 06:06:37,533 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:37,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:37,534 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4908 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1558 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4908 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:37,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4908 Valid, 2295 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 1558 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:37,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:37,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:37,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3432377049180328) internal successors, (1311), 997 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:37,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1311 transitions. [2022-07-21 06:06:37,727 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1311 transitions. Word has length 98 [2022-07-21 06:06:37,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:37,727 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1311 transitions. [2022-07-21 06:06:37,727 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) [2022-07-21 06:06:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1311 transitions. [2022-07-21 06:06:37,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:37,729 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:37,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:37,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-07-21 06:06:37,730 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:37,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:37,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1839474971, now seen corresponding path program 1 times [2022-07-21 06:06:37,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:37,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113624600] [2022-07-21 06:06:37,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:37,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:37,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:37,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:37,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113624600] [2022-07-21 06:06:37,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113624600] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:37,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:37,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395589900] [2022-07-21 06:06:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:37,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:37,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:37,850 INFO L87 Difference]: Start difference. First operand 998 states and 1311 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) [2022-07-21 06:06:39,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:39,290 INFO L93 Difference]: Finished difference Result 1922 states and 2581 transitions. [2022-07-21 06:06:39,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:39,291 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 [2022-07-21 06:06:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:39,293 INFO L225 Difference]: With dead ends: 1922 [2022-07-21 06:06:39,293 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 06:06:39,293 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 [2022-07-21 06:06:39,294 INFO L413 NwaCegarLoop]: 669 mSDtfsCounter, 2423 mSDsluCounter, 2073 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2423 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:39,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2423 Valid, 2742 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 06:06:39,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-21 06:06:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3422131147540983) internal successors, (1310), 997 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1310 transitions. [2022-07-21 06:06:39,506 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1310 transitions. Word has length 98 [2022-07-21 06:06:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:39,507 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1310 transitions. [2022-07-21 06:06:39,507 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) [2022-07-21 06:06:39,507 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1310 transitions. [2022-07-21 06:06:39,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:39,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:39,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:06:39,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-07-21 06:06:39,509 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:39,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:39,510 INFO L85 PathProgramCache]: Analyzing trace with hash -218628127, now seen corresponding path program 1 times [2022-07-21 06:06:39,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:39,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672943671] [2022-07-21 06:06:39,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:39,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:39,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:39,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672943671] [2022-07-21 06:06:39,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672943671] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:39,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:39,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:39,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330895998] [2022-07-21 06:06:39,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:39,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:39,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:39,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:39,618 INFO L87 Difference]: Start difference. First operand 998 states and 1310 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) [2022-07-21 06:06:41,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:41,045 INFO L93 Difference]: Finished difference Result 1919 states and 2577 transitions. [2022-07-21 06:06:41,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:41,046 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 [2022-07-21 06:06:41,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:41,048 INFO L225 Difference]: With dead ends: 1919 [2022-07-21 06:06:41,048 INFO L226 Difference]: Without dead ends: 1768 [2022-07-21 06:06:41,049 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 [2022-07-21 06:06:41,049 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 2418 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2066 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:41,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 2742 Invalid, 2066 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:41,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2022-07-21 06:06:41,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 998. [2022-07-21 06:06:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.341188524590164) internal successors, (1309), 997 states have internal predecessors, (1309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1309 transitions. [2022-07-21 06:06:41,248 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1309 transitions. Word has length 98 [2022-07-21 06:06:41,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:41,248 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1309 transitions. [2022-07-21 06:06:41,248 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) [2022-07-21 06:06:41,248 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1309 transitions. [2022-07-21 06:06:41,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:41,250 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:41,250 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] [2022-07-21 06:06:41,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-07-21 06:06:41,250 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1160598977, now seen corresponding path program 1 times [2022-07-21 06:06:41,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:41,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230046718] [2022-07-21 06:06:41,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:41,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:41,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:41,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230046718] [2022-07-21 06:06:41,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230046718] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:41,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:41,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:41,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522619486] [2022-07-21 06:06:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:41,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:41,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:41,358 INFO L87 Difference]: Start difference. First operand 998 states and 1309 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) [2022-07-21 06:06:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:42,738 INFO L93 Difference]: Finished difference Result 1977 states and 2657 transitions. [2022-07-21 06:06:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:42,738 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 [2022-07-21 06:06:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:42,740 INFO L225 Difference]: With dead ends: 1977 [2022-07-21 06:06:42,740 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:42,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:42,741 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3849 mSDsluCounter, 1901 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3849 SdHoareTripleChecker+Valid, 2488 SdHoareTripleChecker+Invalid, 1837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:42,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3849 Valid, 2488 Invalid, 1837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:42,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:42,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:42,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.3401639344262295) internal successors, (1308), 997 states have internal predecessors, (1308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1308 transitions. [2022-07-21 06:06:42,956 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1308 transitions. Word has length 98 [2022-07-21 06:06:42,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:42,956 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1308 transitions. [2022-07-21 06:06:42,956 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) [2022-07-21 06:06:42,956 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1308 transitions. [2022-07-21 06:06:42,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-07-21 06:06:42,958 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:42,958 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] [2022-07-21 06:06:42,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-07-21 06:06:42,958 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:42,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:42,959 INFO L85 PathProgramCache]: Analyzing trace with hash -542784863, now seen corresponding path program 1 times [2022-07-21 06:06:42,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:42,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110845229] [2022-07-21 06:06:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:42,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:43,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:43,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110845229] [2022-07-21 06:06:43,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110845229] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:43,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:43,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:43,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198656356] [2022-07-21 06:06:43,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:43,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:43,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:43,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:43,072 INFO L87 Difference]: Start difference. First operand 998 states and 1308 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) [2022-07-21 06:06:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:44,441 INFO L93 Difference]: Finished difference Result 1973 states and 2652 transitions. [2022-07-21 06:06:44,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:44,441 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 [2022-07-21 06:06:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:44,443 INFO L225 Difference]: With dead ends: 1973 [2022-07-21 06:06:44,443 INFO L226 Difference]: Without dead ends: 1815 [2022-07-21 06:06:44,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:44,444 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3016 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 1727 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 1812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:44,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3016 Valid, 2495 Invalid, 1812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-07-21 06:06:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 998. [2022-07-21 06:06:44,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 998 states, 976 states have (on average 1.339139344262295) internal successors, (1307), 997 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 998 states to 998 states and 1307 transitions. [2022-07-21 06:06:44,658 INFO L78 Accepts]: Start accepts. Automaton has 998 states and 1307 transitions. Word has length 98 [2022-07-21 06:06:44,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:44,658 INFO L495 AbstractCegarLoop]: Abstraction has 998 states and 1307 transitions. [2022-07-21 06:06:44,658 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) [2022-07-21 06:06:44,658 INFO L276 IsEmpty]: Start isEmpty. Operand 998 states and 1307 transitions. [2022-07-21 06:06:44,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:44,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:44,659 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] [2022-07-21 06:06:44,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-07-21 06:06:44,660 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:44,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:44,660 INFO L85 PathProgramCache]: Analyzing trace with hash -308070434, now seen corresponding path program 1 times [2022-07-21 06:06:44,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:44,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447668911] [2022-07-21 06:06:44,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:44,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:44,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:44,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447668911] [2022-07-21 06:06:44,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447668911] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:44,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:44,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:06:44,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293485666] [2022-07-21 06:06:44,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:44,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:06:44,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:44,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:06:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:06:44,845 INFO L87 Difference]: Start difference. First operand 998 states and 1307 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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) [2022-07-21 06:06:47,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:47,965 INFO L93 Difference]: Finished difference Result 3525 states and 4910 transitions. [2022-07-21 06:06:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:06:47,965 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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 [2022-07-21 06:06:47,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:47,968 INFO L225 Difference]: With dead ends: 3525 [2022-07-21 06:06:47,968 INFO L226 Difference]: Without dead ends: 3233 [2022-07-21 06:06:47,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:06:47,969 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 9097 mSDsluCounter, 3053 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9097 SdHoareTripleChecker+Valid, 4030 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:47,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9097 Valid, 4030 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 06:06:47,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2022-07-21 06:06:48,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 1008. [2022-07-21 06:06:48,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3356997971602433) internal successors, (1317), 1007 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:48,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1317 transitions. [2022-07-21 06:06:48,190 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1317 transitions. Word has length 99 [2022-07-21 06:06:48,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:48,191 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1317 transitions. [2022-07-21 06:06:48,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 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) [2022-07-21 06:06:48,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1317 transitions. [2022-07-21 06:06:48,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:48,192 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:48,192 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] [2022-07-21 06:06:48,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-07-21 06:06:48,192 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:48,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:48,193 INFO L85 PathProgramCache]: Analyzing trace with hash 234210846, now seen corresponding path program 1 times [2022-07-21 06:06:48,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:48,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796018480] [2022-07-21 06:06:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:48,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:48,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:48,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796018480] [2022-07-21 06:06:48,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796018480] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:48,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:48,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957315188] [2022-07-21 06:06:48,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:48,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:48,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:48,304 INFO L87 Difference]: Start difference. First operand 1008 states and 1317 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) [2022-07-21 06:06:49,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:49,720 INFO L93 Difference]: Finished difference Result 2000 states and 2681 transitions. [2022-07-21 06:06:49,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:49,720 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 [2022-07-21 06:06:49,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:49,722 INFO L225 Difference]: With dead ends: 2000 [2022-07-21 06:06:49,722 INFO L226 Difference]: Without dead ends: 1825 [2022-07-21 06:06:49,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:49,723 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 4328 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 1530 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 2295 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:49,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4328 Valid, 2295 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1530 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:49,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-07-21 06:06:49,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1008. [2022-07-21 06:06:49,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3336713995943206) internal successors, (1315), 1007 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:49,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1315 transitions. [2022-07-21 06:06:49,945 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1315 transitions. Word has length 99 [2022-07-21 06:06:49,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:49,945 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1315 transitions. [2022-07-21 06:06:49,945 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) [2022-07-21 06:06:49,945 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1315 transitions. [2022-07-21 06:06:49,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:49,946 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:49,946 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] [2022-07-21 06:06:49,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-07-21 06:06:49,947 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:49,947 INFO L85 PathProgramCache]: Analyzing trace with hash -118560034, now seen corresponding path program 1 times [2022-07-21 06:06:49,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:49,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892589169] [2022-07-21 06:06:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:49,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:50,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892589169] [2022-07-21 06:06:50,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892589169] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:50,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:50,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:50,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260631066] [2022-07-21 06:06:50,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:50,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:50,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:50,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:50,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:50,053 INFO L87 Difference]: Start difference. First operand 1008 states and 1315 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) [2022-07-21 06:06:51,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:51,598 INFO L93 Difference]: Finished difference Result 1936 states and 2590 transitions. [2022-07-21 06:06:51,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:51,598 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 [2022-07-21 06:06:51,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:51,600 INFO L225 Difference]: With dead ends: 1936 [2022-07-21 06:06:51,600 INFO L226 Difference]: Without dead ends: 1778 [2022-07-21 06:06:51,601 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 [2022-07-21 06:06:51,601 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 3335 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3335 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:51,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3335 Valid, 2875 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:06:51,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1778 states. [2022-07-21 06:06:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1778 to 1008. [2022-07-21 06:06:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3316430020283976) internal successors, (1313), 1007 states have internal predecessors, (1313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:51,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1313 transitions. [2022-07-21 06:06:51,839 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1313 transitions. Word has length 99 [2022-07-21 06:06:51,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:51,840 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1313 transitions. [2022-07-21 06:06:51,840 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) [2022-07-21 06:06:51,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1313 transitions. [2022-07-21 06:06:51,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:51,842 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:51,842 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] [2022-07-21 06:06:51,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-07-21 06:06:51,842 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:51,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:51,843 INFO L85 PathProgramCache]: Analyzing trace with hash -271572002, now seen corresponding path program 1 times [2022-07-21 06:06:51,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:51,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263805615] [2022-07-21 06:06:51,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:51,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:51,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:51,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:51,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263805615] [2022-07-21 06:06:51,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263805615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:51,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:51,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:51,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483183702] [2022-07-21 06:06:51,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:51,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:51,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:51,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:51,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:51,974 INFO L87 Difference]: Start difference. First operand 1008 states and 1313 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) [2022-07-21 06:06:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:53,396 INFO L93 Difference]: Finished difference Result 1999 states and 2673 transitions. [2022-07-21 06:06:53,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:53,396 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 [2022-07-21 06:06:53,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:53,398 INFO L225 Difference]: With dead ends: 1999 [2022-07-21 06:06:53,398 INFO L226 Difference]: Without dead ends: 1825 [2022-07-21 06:06:53,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:53,399 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 3010 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1711 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3010 SdHoareTripleChecker+Valid, 2491 SdHoareTripleChecker+Invalid, 1796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1711 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:53,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3010 Valid, 2491 Invalid, 1796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1711 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:06:53,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1825 states. [2022-07-21 06:06:53,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1825 to 1008. [2022-07-21 06:06:53,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1008 states, 986 states have (on average 1.3296146044624746) internal successors, (1311), 1007 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:53,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1008 states to 1008 states and 1311 transitions. [2022-07-21 06:06:53,645 INFO L78 Accepts]: Start accepts. Automaton has 1008 states and 1311 transitions. Word has length 99 [2022-07-21 06:06:53,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:53,645 INFO L495 AbstractCegarLoop]: Abstraction has 1008 states and 1311 transitions. [2022-07-21 06:06:53,646 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) [2022-07-21 06:06:53,646 INFO L276 IsEmpty]: Start isEmpty. Operand 1008 states and 1311 transitions. [2022-07-21 06:06:53,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:53,647 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:53,647 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] [2022-07-21 06:06:53,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-07-21 06:06:53,648 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:53,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash -370973194, now seen corresponding path program 1 times [2022-07-21 06:06:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:53,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250372204] [2022-07-21 06:06:53,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:53,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:53,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250372204] [2022-07-21 06:06:53,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250372204] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:53,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:53,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:53,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269853676] [2022-07-21 06:06:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:53,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:53,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:53,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:53,766 INFO L87 Difference]: Start difference. First operand 1008 states and 1311 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) [2022-07-21 06:06:55,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:55,559 INFO L93 Difference]: Finished difference Result 1926 states and 2575 transitions. [2022-07-21 06:06:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:55,560 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 [2022-07-21 06:06:55,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:55,562 INFO L225 Difference]: With dead ends: 1926 [2022-07-21 06:06:55,562 INFO L226 Difference]: Without dead ends: 1776 [2022-07-21 06:06:55,562 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 [2022-07-21 06:06:55,563 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 3947 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3947 SdHoareTripleChecker+Valid, 3557 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:55,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3947 Valid, 3557 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1776 states. [2022-07-21 06:06:55,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1776 to 1006. [2022-07-21 06:06:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1006 states, 984 states have (on average 1.3282520325203253) internal successors, (1307), 1005 states have internal predecessors, (1307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1307 transitions. [2022-07-21 06:06:55,802 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1307 transitions. Word has length 99 [2022-07-21 06:06:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:55,802 INFO L495 AbstractCegarLoop]: Abstraction has 1006 states and 1307 transitions. [2022-07-21 06:06:55,802 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) [2022-07-21 06:06:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1307 transitions. [2022-07-21 06:06:55,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:55,804 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:55,804 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] [2022-07-21 06:06:55,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-07-21 06:06:55,805 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash 193533868, now seen corresponding path program 1 times [2022-07-21 06:06:55,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:55,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991561847] [2022-07-21 06:06:55,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:55,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:55,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:55,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:55,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:55,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991561847] [2022-07-21 06:06:55,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991561847] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:55,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:55,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:55,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483655143] [2022-07-21 06:06:55,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:55,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:55,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:55,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:55,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:55,940 INFO L87 Difference]: Start difference. First operand 1006 states and 1307 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) [2022-07-21 06:06:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:57,713 INFO L93 Difference]: Finished difference Result 1924 states and 2571 transitions. [2022-07-21 06:06:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:57,713 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 [2022-07-21 06:06:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:57,715 INFO L225 Difference]: With dead ends: 1924 [2022-07-21 06:06:57,715 INFO L226 Difference]: Without dead ends: 1775 [2022-07-21 06:06:57,716 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 [2022-07-21 06:06:57,716 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 3830 mSDsluCounter, 3043 mSDsCounter, 0 mSdLazyCounter, 2583 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 2759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 2583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:57,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 3823 Invalid, 2759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 2583 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:06:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2022-07-21 06:06:57,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1005. [2022-07-21 06:06:57,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 983 states have (on average 1.3275686673448626) internal successors, (1305), 1004 states have internal predecessors, (1305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:06:57,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1305 transitions. [2022-07-21 06:06:57,953 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1305 transitions. Word has length 99 [2022-07-21 06:06:57,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:06:57,953 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1305 transitions. [2022-07-21 06:06:57,953 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) [2022-07-21 06:06:57,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1305 transitions. [2022-07-21 06:06:57,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:06:57,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:06:57,955 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] [2022-07-21 06:06:57,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-07-21 06:06:57,955 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:06:57,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:06:57,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1049556564, now seen corresponding path program 1 times [2022-07-21 06:06:57,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:06:57,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387110491] [2022-07-21 06:06:57,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:06:57,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:06:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:06:58,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:06:58,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:06:58,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387110491] [2022-07-21 06:06:58,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387110491] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:06:58,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:06:58,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:06:58,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322050210] [2022-07-21 06:06:58,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:06:58,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:06:58,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:06:58,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:06:58,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:06:58,058 INFO L87 Difference]: Start difference. First operand 1005 states and 1305 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) [2022-07-21 06:06:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:06:59,780 INFO L93 Difference]: Finished difference Result 1922 states and 2568 transitions. [2022-07-21 06:06:59,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:06:59,780 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 [2022-07-21 06:06:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:06:59,782 INFO L225 Difference]: With dead ends: 1922 [2022-07-21 06:06:59,782 INFO L226 Difference]: Without dead ends: 1773 [2022-07-21 06:06:59,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:06:59,783 INFO L413 NwaCegarLoop]: 772 mSDtfsCounter, 4129 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 3084 SdHoareTripleChecker+Invalid, 2363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:06:59,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 3084 Invalid, 2363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:06:59,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1773 states. [2022-07-21 06:07:00,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1773 to 1004. [2022-07-21 06:07:00,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 982 states have (on average 1.3268839103869654) internal successors, (1303), 1003 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:00,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1303 transitions. [2022-07-21 06:07:00,032 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1303 transitions. Word has length 99 [2022-07-21 06:07:00,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:00,033 INFO L495 AbstractCegarLoop]: Abstraction has 1004 states and 1303 transitions. [2022-07-21 06:07:00,033 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) [2022-07-21 06:07:00,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1303 transitions. [2022-07-21 06:07:00,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:00,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:00,034 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] [2022-07-21 06:07:00,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-07-21 06:07:00,034 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:00,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:00,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1664921314, now seen corresponding path program 1 times [2022-07-21 06:07:00,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:00,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183731658] [2022-07-21 06:07:00,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:00,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:00,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:00,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:00,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183731658] [2022-07-21 06:07:00,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183731658] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:00,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:00,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:07:00,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987338305] [2022-07-21 06:07:00,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:00,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:07:00,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:00,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:07:00,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:07:00,360 INFO L87 Difference]: Start difference. First operand 1004 states and 1303 transitions. Second operand has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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) [2022-07-21 06:07:03,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:03,380 INFO L93 Difference]: Finished difference Result 3750 states and 5132 transitions. [2022-07-21 06:07:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:07:03,380 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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 [2022-07-21 06:07:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:03,384 INFO L225 Difference]: With dead ends: 3750 [2022-07-21 06:07:03,384 INFO L226 Difference]: Without dead ends: 3584 [2022-07-21 06:07:03,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:07:03,385 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 5317 mSDsluCounter, 9368 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5317 SdHoareTripleChecker+Valid, 10522 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:03,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5317 Valid, 10522 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-21 06:07:03,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-07-21 06:07:03,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 986. [2022-07-21 06:07:03,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3257261410788381) internal successors, (1278), 985 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:03,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1278 transitions. [2022-07-21 06:07:03,693 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1278 transitions. Word has length 99 [2022-07-21 06:07:03,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:03,693 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1278 transitions. [2022-07-21 06:07:03,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.615384615384615) internal successors, (99), 13 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) [2022-07-21 06:07:03,693 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1278 transitions. [2022-07-21 06:07:03,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-07-21 06:07:03,694 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:03,694 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] [2022-07-21 06:07:03,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-07-21 06:07:03,695 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:03,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:03,695 INFO L85 PathProgramCache]: Analyzing trace with hash 760861535, now seen corresponding path program 1 times [2022-07-21 06:07:03,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:03,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000523926] [2022-07-21 06:07:03,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:03,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:03,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:03,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:03,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000523926] [2022-07-21 06:07:03,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000523926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:03,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:03,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:03,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94959277] [2022-07-21 06:07:03,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:03,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:03,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:03,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:03,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:03,795 INFO L87 Difference]: Start difference. First operand 986 states and 1278 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) [2022-07-21 06:07:05,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:05,614 INFO L93 Difference]: Finished difference Result 2063 states and 2780 transitions. [2022-07-21 06:07:05,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:05,614 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 [2022-07-21 06:07:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:05,616 INFO L225 Difference]: With dead ends: 2063 [2022-07-21 06:07:05,616 INFO L226 Difference]: Without dead ends: 1843 [2022-07-21 06:07:05,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:05,618 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 3110 mSDsluCounter, 2513 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3110 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:05,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3110 Valid, 3375 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:05,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1843 states. [2022-07-21 06:07:05,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1843 to 981. [2022-07-21 06:07:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3263816475495307) internal successors, (1272), 980 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1272 transitions. [2022-07-21 06:07:05,917 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1272 transitions. Word has length 99 [2022-07-21 06:07:05,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:05,917 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1272 transitions. [2022-07-21 06:07:05,917 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) [2022-07-21 06:07:05,917 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1272 transitions. [2022-07-21 06:07:05,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:05,919 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:05,919 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] [2022-07-21 06:07:05,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-07-21 06:07:05,919 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:05,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:05,919 INFO L85 PathProgramCache]: Analyzing trace with hash 193950012, now seen corresponding path program 1 times [2022-07-21 06:07:05,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:05,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594831819] [2022-07-21 06:07:05,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:05,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:05,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:06,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:06,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:06,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594831819] [2022-07-21 06:07:06,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594831819] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:06,025 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:06,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:06,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367095076] [2022-07-21 06:07:06,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:06,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:06,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:06,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:06,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:06,027 INFO L87 Difference]: Start difference. First operand 981 states and 1272 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:07,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:07,933 INFO L93 Difference]: Finished difference Result 2033 states and 2730 transitions. [2022-07-21 06:07:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:07,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:07,935 INFO L225 Difference]: With dead ends: 2033 [2022-07-21 06:07:07,935 INFO L226 Difference]: Without dead ends: 1822 [2022-07-21 06:07:07,936 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 [2022-07-21 06:07:07,936 INFO L413 NwaCegarLoop]: 681 mSDtfsCounter, 4446 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4446 SdHoareTripleChecker+Valid, 2969 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:07,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4446 Valid, 2969 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:07,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-07-21 06:07:08,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 981. [2022-07-21 06:07:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.32429614181439) internal successors, (1270), 980 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1270 transitions. [2022-07-21 06:07:08,285 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1270 transitions. Word has length 100 [2022-07-21 06:07:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:08,285 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1270 transitions. [2022-07-21 06:07:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1270 transitions. [2022-07-21 06:07:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:08,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:08,287 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] [2022-07-21 06:07:08,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-07-21 06:07:08,287 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:08,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:08,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1060069596, now seen corresponding path program 1 times [2022-07-21 06:07:08,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:08,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90853895] [2022-07-21 06:07:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:08,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:08,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:08,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90853895] [2022-07-21 06:07:08,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90853895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:08,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:08,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:08,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054701992] [2022-07-21 06:07:08,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:08,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:08,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:08,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:08,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:08,405 INFO L87 Difference]: Start difference. First operand 981 states and 1270 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:10,251 INFO L93 Difference]: Finished difference Result 1895 states and 2527 transitions. [2022-07-21 06:07:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:10,252 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:10,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:10,254 INFO L225 Difference]: With dead ends: 1895 [2022-07-21 06:07:10,254 INFO L226 Difference]: Without dead ends: 1741 [2022-07-21 06:07:10,255 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 [2022-07-21 06:07:10,255 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3820 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2312 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:10,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3820 Valid, 3452 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:10,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2022-07-21 06:07:10,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 981. [2022-07-21 06:07:10,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.3222106360792492) internal successors, (1268), 980 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:10,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1268 transitions. [2022-07-21 06:07:10,565 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1268 transitions. Word has length 100 [2022-07-21 06:07:10,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:10,565 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1268 transitions. [2022-07-21 06:07:10,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:10,565 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1268 transitions. [2022-07-21 06:07:10,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:10,566 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:10,566 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] [2022-07-21 06:07:10,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-07-21 06:07:10,566 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:10,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:10,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1372751492, now seen corresponding path program 1 times [2022-07-21 06:07:10,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:10,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908934097] [2022-07-21 06:07:10,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:10,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:10,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:10,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:10,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908934097] [2022-07-21 06:07:10,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908934097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:10,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:10,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:10,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877818452] [2022-07-21 06:07:10,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:10,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:10,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:10,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:10,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:10,742 INFO L87 Difference]: Start difference. First operand 981 states and 1268 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:14,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:14,253 INFO L93 Difference]: Finished difference Result 3132 states and 4322 transitions. [2022-07-21 06:07:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:14,253 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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 [2022-07-21 06:07:14,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:14,257 INFO L225 Difference]: With dead ends: 3132 [2022-07-21 06:07:14,257 INFO L226 Difference]: Without dead ends: 2935 [2022-07-21 06:07:14,257 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 [2022-07-21 06:07:14,258 INFO L413 NwaCegarLoop]: 865 mSDtfsCounter, 7067 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 545 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7067 SdHoareTripleChecker+Valid, 3715 SdHoareTripleChecker+Invalid, 3089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 545 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:14,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7067 Valid, 3715 Invalid, 3089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [545 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 06:07:14,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2935 states. [2022-07-21 06:07:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2935 to 991. [2022-07-21 06:07:14,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3188854489164086) internal successors, (1278), 990 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:14,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1278 transitions. [2022-07-21 06:07:14,600 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1278 transitions. Word has length 100 [2022-07-21 06:07:14,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:14,600 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1278 transitions. [2022-07-21 06:07:14,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:14,601 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1278 transitions. [2022-07-21 06:07:14,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:14,602 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:14,602 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] [2022-07-21 06:07:14,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-07-21 06:07:14,602 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:14,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:14,602 INFO L85 PathProgramCache]: Analyzing trace with hash 2105960988, now seen corresponding path program 1 times [2022-07-21 06:07:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:14,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434552265] [2022-07-21 06:07:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:14,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:14,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:14,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434552265] [2022-07-21 06:07:14,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434552265] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:14,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:14,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:14,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253059443] [2022-07-21 06:07:14,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:14,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:14,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:14,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:14,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:14,721 INFO L87 Difference]: Start difference. First operand 991 states and 1278 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:16,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:16,764 INFO L93 Difference]: Finished difference Result 1905 states and 2535 transitions. [2022-07-21 06:07:16,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:16,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:16,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:16,767 INFO L225 Difference]: With dead ends: 1905 [2022-07-21 06:07:16,767 INFO L226 Difference]: Without dead ends: 1751 [2022-07-21 06:07:16,768 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 [2022-07-21 06:07:16,769 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 3718 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 2483 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3718 SdHoareTripleChecker+Valid, 3674 SdHoareTripleChecker+Invalid, 2649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 2483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:16,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3718 Valid, 3674 Invalid, 2649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 2483 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:07:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-21 06:07:17,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-21 06:07:17,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3168214654282766) internal successors, (1276), 990 states have internal predecessors, (1276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:17,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1276 transitions. [2022-07-21 06:07:17,147 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1276 transitions. Word has length 100 [2022-07-21 06:07:17,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:17,148 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1276 transitions. [2022-07-21 06:07:17,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1276 transitions. [2022-07-21 06:07:17,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:17,149 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:17,149 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] [2022-07-21 06:07:17,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-07-21 06:07:17,149 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:17,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -2115298916, now seen corresponding path program 1 times [2022-07-21 06:07:17,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:17,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58462855] [2022-07-21 06:07:17,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:17,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:17,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:17,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58462855] [2022-07-21 06:07:17,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58462855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:17,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:17,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:17,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998993887] [2022-07-21 06:07:17,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:17,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:17,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:17,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:17,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:17,264 INFO L87 Difference]: Start difference. First operand 991 states and 1276 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:19,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:19,013 INFO L93 Difference]: Finished difference Result 2021 states and 2704 transitions. [2022-07-21 06:07:19,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:19,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:19,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:19,016 INFO L225 Difference]: With dead ends: 2021 [2022-07-21 06:07:19,016 INFO L226 Difference]: Without dead ends: 1822 [2022-07-21 06:07:19,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:07:19,017 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 4789 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4789 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:19,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4789 Valid, 2872 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:19,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2022-07-21 06:07:19,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 991. [2022-07-21 06:07:19,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3147574819401444) internal successors, (1274), 990 states have internal predecessors, (1274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1274 transitions. [2022-07-21 06:07:19,349 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1274 transitions. Word has length 100 [2022-07-21 06:07:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:19,349 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1274 transitions. [2022-07-21 06:07:19,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1274 transitions. [2022-07-21 06:07:19,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:19,351 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:19,351 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] [2022-07-21 06:07:19,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-07-21 06:07:19,351 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:19,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:19,351 INFO L85 PathProgramCache]: Analyzing trace with hash 361781404, now seen corresponding path program 1 times [2022-07-21 06:07:19,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:19,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358870518] [2022-07-21 06:07:19,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:19,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:19,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:19,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:19,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358870518] [2022-07-21 06:07:19,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358870518] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:19,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:19,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:19,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561187630] [2022-07-21 06:07:19,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:19,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:19,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:19,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:19,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:19,466 INFO L87 Difference]: Start difference. First operand 991 states and 1274 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:21,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:21,380 INFO L93 Difference]: Finished difference Result 1905 states and 2531 transitions. [2022-07-21 06:07:21,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:21,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:21,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:21,382 INFO L225 Difference]: With dead ends: 1905 [2022-07-21 06:07:21,382 INFO L226 Difference]: Without dead ends: 1751 [2022-07-21 06:07:21,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:21,383 INFO L413 NwaCegarLoop]: 757 mSDtfsCounter, 3062 mSDsluCounter, 2262 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:21,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 3019 Invalid, 2210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:21,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-21 06:07:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-21 06:07:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3126934984520124) internal successors, (1272), 990 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1272 transitions. [2022-07-21 06:07:21,718 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1272 transitions. Word has length 100 [2022-07-21 06:07:21,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:21,718 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1272 transitions. [2022-07-21 06:07:21,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:21,719 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1272 transitions. [2022-07-21 06:07:21,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:21,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:21,720 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] [2022-07-21 06:07:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-07-21 06:07:21,721 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:21,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1379458134, now seen corresponding path program 1 times [2022-07-21 06:07:21,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:21,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304496137] [2022-07-21 06:07:21,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:21,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:21,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:21,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:21,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304496137] [2022-07-21 06:07:21,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304496137] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:21,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:21,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:21,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071398002] [2022-07-21 06:07:21,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:21,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:21,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:21,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:21,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:21,830 INFO L87 Difference]: Start difference. First operand 991 states and 1272 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:23,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:23,657 INFO L93 Difference]: Finished difference Result 2145 states and 2872 transitions. [2022-07-21 06:07:23,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:23,657 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:23,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:23,659 INFO L225 Difference]: With dead ends: 2145 [2022-07-21 06:07:23,659 INFO L226 Difference]: Without dead ends: 1853 [2022-07-21 06:07:23,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:23,660 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3080 mSDsluCounter, 2535 mSDsCounter, 0 mSdLazyCounter, 2204 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 3415 SdHoareTripleChecker+Invalid, 2236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:23,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3080 Valid, 3415 Invalid, 2236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:23,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2022-07-21 06:07:23,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 981. [2022-07-21 06:07:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.313868613138686) internal successors, (1260), 980 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:23,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1260 transitions. [2022-07-21 06:07:23,992 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1260 transitions. Word has length 100 [2022-07-21 06:07:23,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:23,992 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1260 transitions. [2022-07-21 06:07:23,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:23,992 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1260 transitions. [2022-07-21 06:07:23,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:23,993 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:23,993 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] [2022-07-21 06:07:23,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-07-21 06:07:23,994 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:23,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:23,994 INFO L85 PathProgramCache]: Analyzing trace with hash -584559812, now seen corresponding path program 1 times [2022-07-21 06:07:23,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:23,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856920202] [2022-07-21 06:07:23,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:23,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:24,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:24,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:24,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856920202] [2022-07-21 06:07:24,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856920202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:24,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:24,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:24,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686466982] [2022-07-21 06:07:24,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:24,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:24,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:24,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:24,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:24,158 INFO L87 Difference]: Start difference. First operand 981 states and 1260 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:27,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:27,815 INFO L93 Difference]: Finished difference Result 3082 states and 4254 transitions. [2022-07-21 06:07:27,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:27,816 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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 [2022-07-21 06:07:27,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:27,819 INFO L225 Difference]: With dead ends: 3082 [2022-07-21 06:07:27,819 INFO L226 Difference]: Without dead ends: 2905 [2022-07-21 06:07:27,819 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 [2022-07-21 06:07:27,820 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 6759 mSDsluCounter, 2957 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 526 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6759 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:27,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6759 Valid, 3856 Invalid, 3133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 06:07:27,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2905 states. [2022-07-21 06:07:28,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2905 to 986. [2022-07-21 06:07:28,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.312240663900415) internal successors, (1265), 985 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:28,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1265 transitions. [2022-07-21 06:07:28,189 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1265 transitions. Word has length 100 [2022-07-21 06:07:28,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:28,189 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1265 transitions. [2022-07-21 06:07:28,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:28,190 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1265 transitions. [2022-07-21 06:07:28,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:28,191 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:28,191 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] [2022-07-21 06:07:28,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-07-21 06:07:28,192 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:28,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:28,192 INFO L85 PathProgramCache]: Analyzing trace with hash 930233820, now seen corresponding path program 1 times [2022-07-21 06:07:28,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:28,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351289248] [2022-07-21 06:07:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:28,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:28,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:28,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351289248] [2022-07-21 06:07:28,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351289248] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:28,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:28,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:28,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248529024] [2022-07-21 06:07:28,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:28,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:28,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:28,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:28,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:28,304 INFO L87 Difference]: Start difference. First operand 986 states and 1265 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:30,326 INFO L93 Difference]: Finished difference Result 1897 states and 2517 transitions. [2022-07-21 06:07:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:30,329 INFO L225 Difference]: With dead ends: 1897 [2022-07-21 06:07:30,329 INFO L226 Difference]: Without dead ends: 1746 [2022-07-21 06:07:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:30,330 INFO L413 NwaCegarLoop]: 816 mSDtfsCounter, 2028 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 2235 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2028 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 2235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:30,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2028 Valid, 3253 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 2235 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:30,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-21 06:07:30,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-21 06:07:30,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3112033195020747) internal successors, (1264), 985 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) [2022-07-21 06:07:30,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1264 transitions. [2022-07-21 06:07:30,697 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1264 transitions. Word has length 100 [2022-07-21 06:07:30,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:30,697 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1264 transitions. [2022-07-21 06:07:30,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:30,697 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1264 transitions. [2022-07-21 06:07:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:30,698 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:30,698 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] [2022-07-21 06:07:30,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-07-21 06:07:30,699 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:30,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:30,699 INFO L85 PathProgramCache]: Analyzing trace with hash -946932452, now seen corresponding path program 1 times [2022-07-21 06:07:30,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:30,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074405230] [2022-07-21 06:07:30,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:30,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:30,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:30,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:30,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074405230] [2022-07-21 06:07:30,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074405230] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:30,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:30,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:30,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667557434] [2022-07-21 06:07:30,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:30,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:30,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:30,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:30,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:30,811 INFO L87 Difference]: Start difference. First operand 986 states and 1264 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:32,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:32,779 INFO L93 Difference]: Finished difference Result 1983 states and 2652 transitions. [2022-07-21 06:07:32,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:32,780 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:32,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:32,782 INFO L225 Difference]: With dead ends: 1983 [2022-07-21 06:07:32,782 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:07:32,783 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 [2022-07-21 06:07:32,783 INFO L413 NwaCegarLoop]: 752 mSDtfsCounter, 4184 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4184 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 2096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:32,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4184 Valid, 3182 Invalid, 2096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:32,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:07:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-21 06:07:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3101659751037344) internal successors, (1263), 985 states have internal predecessors, (1263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1263 transitions. [2022-07-21 06:07:33,155 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1263 transitions. Word has length 100 [2022-07-21 06:07:33,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:33,155 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1263 transitions. [2022-07-21 06:07:33,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:33,155 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1263 transitions. [2022-07-21 06:07:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:33,156 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:33,156 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] [2022-07-21 06:07:33,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-07-21 06:07:33,157 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:33,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:33,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1810001348, now seen corresponding path program 1 times [2022-07-21 06:07:33,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:33,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704160651] [2022-07-21 06:07:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:33,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:33,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:33,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704160651] [2022-07-21 06:07:33,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704160651] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:33,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:33,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226430772] [2022-07-21 06:07:33,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:33,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:33,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:33,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:33,273 INFO L87 Difference]: Start difference. First operand 986 states and 1263 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:35,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:35,152 INFO L93 Difference]: Finished difference Result 1989 states and 2657 transitions. [2022-07-21 06:07:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:35,153 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:35,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:35,155 INFO L225 Difference]: With dead ends: 1989 [2022-07-21 06:07:35,155 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:07:35,156 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 [2022-07-21 06:07:35,156 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4362 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 3023 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:35,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 3023 Invalid, 1981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:35,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:07:35,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-21 06:07:35,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3091286307053942) internal successors, (1262), 985 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:35,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1262 transitions. [2022-07-21 06:07:35,534 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1262 transitions. Word has length 100 [2022-07-21 06:07:35,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:35,534 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1262 transitions. [2022-07-21 06:07:35,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1262 transitions. [2022-07-21 06:07:35,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:35,536 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:35,536 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] [2022-07-21 06:07:35,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-07-21 06:07:35,536 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:35,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:35,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1688175644, now seen corresponding path program 1 times [2022-07-21 06:07:35,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:35,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382233051] [2022-07-21 06:07:35,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:35,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:35,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:35,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382233051] [2022-07-21 06:07:35,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382233051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:35,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:35,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:35,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508734121] [2022-07-21 06:07:35,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:35,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:35,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:35,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:35,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:35,640 INFO L87 Difference]: Start difference. First operand 986 states and 1262 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:37,599 INFO L93 Difference]: Finished difference Result 1897 states and 2513 transitions. [2022-07-21 06:07:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:37,599 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:37,601 INFO L225 Difference]: With dead ends: 1897 [2022-07-21 06:07:37,601 INFO L226 Difference]: Without dead ends: 1746 [2022-07-21 06:07:37,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:37,602 INFO L413 NwaCegarLoop]: 751 mSDtfsCounter, 3054 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 2994 SdHoareTripleChecker+Invalid, 2191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:37,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 2994 Invalid, 2191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:37,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-21 06:07:37,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-21 06:07:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.308091286307054) internal successors, (1261), 985 states have internal predecessors, (1261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:37,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1261 transitions. [2022-07-21 06:07:37,973 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1261 transitions. Word has length 100 [2022-07-21 06:07:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:37,973 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1261 transitions. [2022-07-21 06:07:37,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:37,973 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1261 transitions. [2022-07-21 06:07:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:37,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:37,974 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, 1, 1, 1, 1] [2022-07-21 06:07:37,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-07-21 06:07:37,974 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:37,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:37,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1307086337, now seen corresponding path program 1 times [2022-07-21 06:07:37,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:37,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945062446] [2022-07-21 06:07:37,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:37,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:38,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:38,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945062446] [2022-07-21 06:07:38,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945062446] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:38,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:38,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:38,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855018401] [2022-07-21 06:07:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:38,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:38,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:38,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:38,092 INFO L87 Difference]: Start difference. First operand 986 states and 1261 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:40,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:40,160 INFO L93 Difference]: Finished difference Result 1895 states and 2509 transitions. [2022-07-21 06:07:40,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:40,166 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:40,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:40,168 INFO L225 Difference]: With dead ends: 1895 [2022-07-21 06:07:40,169 INFO L226 Difference]: Without dead ends: 1746 [2022-07-21 06:07:40,169 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 [2022-07-21 06:07:40,169 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3780 mSDsluCounter, 2761 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3780 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:40,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3780 Valid, 3453 Invalid, 2428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:40,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-21 06:07:40,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-21 06:07:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3070539419087137) internal successors, (1260), 985 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:40,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1260 transitions. [2022-07-21 06:07:40,546 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1260 transitions. Word has length 100 [2022-07-21 06:07:40,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:40,546 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1260 transitions. [2022-07-21 06:07:40,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1260 transitions. [2022-07-21 06:07:40,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:40,548 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:40,548 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, 1, 1, 1, 1] [2022-07-21 06:07:40,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-07-21 06:07:40,548 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash 623323004, now seen corresponding path program 1 times [2022-07-21 06:07:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:40,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462546279] [2022-07-21 06:07:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:40,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:40,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:40,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:40,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462546279] [2022-07-21 06:07:40,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462546279] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:40,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:40,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:40,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235033388] [2022-07-21 06:07:40,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:40,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:40,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:40,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:40,675 INFO L87 Difference]: Start difference. First operand 986 states and 1260 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:42,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:42,838 INFO L93 Difference]: Finished difference Result 1897 states and 2510 transitions. [2022-07-21 06:07:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:42,839 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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 [2022-07-21 06:07:42,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:42,841 INFO L225 Difference]: With dead ends: 1897 [2022-07-21 06:07:42,841 INFO L226 Difference]: Without dead ends: 1746 [2022-07-21 06:07:42,842 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 [2022-07-21 06:07:42,842 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 3776 mSDsluCounter, 2760 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:42,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3776 Valid, 3452 Invalid, 2423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-21 06:07:42,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1746 states. [2022-07-21 06:07:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1746 to 986. [2022-07-21 06:07:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.3060165975103735) internal successors, (1259), 985 states have internal predecessors, (1259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1259 transitions. [2022-07-21 06:07:43,228 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1259 transitions. Word has length 100 [2022-07-21 06:07:43,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:43,228 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1259 transitions. [2022-07-21 06:07:43,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 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) [2022-07-21 06:07:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1259 transitions. [2022-07-21 06:07:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-07-21 06:07:43,230 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:43,230 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, 1, 1, 1, 1] [2022-07-21 06:07:43,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-07-21 06:07:43,230 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:43,230 INFO L85 PathProgramCache]: Analyzing trace with hash 964528316, now seen corresponding path program 1 times [2022-07-21 06:07:43,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:43,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568639988] [2022-07-21 06:07:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:43,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:43,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:43,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568639988] [2022-07-21 06:07:43,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568639988] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:43,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:43,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:43,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839279747] [2022-07-21 06:07:43,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:43,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:43,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:43,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:43,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:43,403 INFO L87 Difference]: Start difference. First operand 986 states and 1259 transitions. Second operand has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:47,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:47,513 INFO L93 Difference]: Finished difference Result 3100 states and 4265 transitions. [2022-07-21 06:07:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:47,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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 [2022-07-21 06:07:47,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:47,516 INFO L225 Difference]: With dead ends: 3100 [2022-07-21 06:07:47,516 INFO L226 Difference]: Without dead ends: 2914 [2022-07-21 06:07:47,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:07:47,517 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 5464 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 2926 mSolverCounterSat, 498 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5464 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 498 IncrementalHoareTripleChecker+Valid, 2926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:47,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5464 Valid, 4197 Invalid, 3424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [498 Valid, 2926 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-21 06:07:47,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2022-07-21 06:07:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 991. [2022-07-21 06:07:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3044375644994841) internal successors, (1264), 990 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) [2022-07-21 06:07:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1264 transitions. [2022-07-21 06:07:47,935 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1264 transitions. Word has length 100 [2022-07-21 06:07:47,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:47,936 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1264 transitions. [2022-07-21 06:07:47,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.333333333333334) internal successors, (100), 11 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) [2022-07-21 06:07:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1264 transitions. [2022-07-21 06:07:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:47,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:47,938 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] [2022-07-21 06:07:47,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-07-21 06:07:47,940 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:47,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:47,940 INFO L85 PathProgramCache]: Analyzing trace with hash 205443651, now seen corresponding path program 1 times [2022-07-21 06:07:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:47,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233484895] [2022-07-21 06:07:47,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:47,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:48,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:48,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233484895] [2022-07-21 06:07:48,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233484895] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:48,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:48,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:48,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046655485] [2022-07-21 06:07:48,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:48,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:48,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:48,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:48,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:48,058 INFO L87 Difference]: Start difference. First operand 991 states and 1264 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) [2022-07-21 06:07:50,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:50,169 INFO L93 Difference]: Finished difference Result 1909 states and 2522 transitions. [2022-07-21 06:07:50,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:50,170 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 [2022-07-21 06:07:50,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:50,172 INFO L225 Difference]: With dead ends: 1909 [2022-07-21 06:07:50,172 INFO L226 Difference]: Without dead ends: 1751 [2022-07-21 06:07:50,173 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 [2022-07-21 06:07:50,173 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 3774 mSDsluCounter, 2759 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3774 SdHoareTripleChecker+Valid, 3452 SdHoareTripleChecker+Invalid, 2415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:50,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3774 Valid, 3452 Invalid, 2415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:07:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2022-07-21 06:07:50,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 991. [2022-07-21 06:07:50,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.302373581011352) internal successors, (1262), 990 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1262 transitions. [2022-07-21 06:07:50,581 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1262 transitions. Word has length 101 [2022-07-21 06:07:50,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:50,582 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1262 transitions. [2022-07-21 06:07:50,582 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) [2022-07-21 06:07:50,582 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1262 transitions. [2022-07-21 06:07:50,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:50,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:50,583 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] [2022-07-21 06:07:50,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-07-21 06:07:50,584 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)] === [2022-07-21 06:07:50,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:50,584 INFO L85 PathProgramCache]: Analyzing trace with hash 558214531, now seen corresponding path program 1 times [2022-07-21 06:07:50,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:50,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43632151] [2022-07-21 06:07:50,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:50,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:50,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:50,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43632151] [2022-07-21 06:07:50,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43632151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:50,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:50,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:50,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733537718] [2022-07-21 06:07:50,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:50,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:50,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:50,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:50,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:50,688 INFO L87 Difference]: Start difference. First operand 991 states and 1262 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) [2022-07-21 06:07:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:52,642 INFO L93 Difference]: Finished difference Result 1983 states and 2622 transitions. [2022-07-21 06:07:52,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:52,646 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 [2022-07-21 06:07:52,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:52,648 INFO L225 Difference]: With dead ends: 1983 [2022-07-21 06:07:52,648 INFO L226 Difference]: Without dead ends: 1808 [2022-07-21 06:07:52,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:52,649 INFO L413 NwaCegarLoop]: 663 mSDtfsCounter, 2309 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 1794 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2309 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:52,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2309 Valid, 2784 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1794 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:52,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1808 states. [2022-07-21 06:07:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1808 to 991. [2022-07-21 06:07:53,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.3003095975232197) internal successors, (1260), 990 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:53,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1260 transitions. [2022-07-21 06:07:53,058 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1260 transitions. Word has length 101 [2022-07-21 06:07:53,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:53,058 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1260 transitions. [2022-07-21 06:07:53,058 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) [2022-07-21 06:07:53,059 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1260 transitions. [2022-07-21 06:07:53,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:53,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:53,060 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] [2022-07-21 06:07:53,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-07-21 06:07:53,060 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:53,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:53,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1900513027, now seen corresponding path program 1 times [2022-07-21 06:07:53,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:53,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559532808] [2022-07-21 06:07:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:53,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:53,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:53,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559532808] [2022-07-21 06:07:53,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559532808] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:53,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:53,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:07:53,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782370331] [2022-07-21 06:07:53,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:53,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:07:53,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:53,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:07:53,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:07:53,215 INFO L87 Difference]: Start difference. First operand 991 states and 1260 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) [2022-07-21 06:07:57,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:57,367 INFO L93 Difference]: Finished difference Result 3166 states and 4344 transitions. [2022-07-21 06:07:57,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:07:57,367 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 [2022-07-21 06:07:57,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:57,370 INFO L225 Difference]: With dead ends: 3166 [2022-07-21 06:07:57,370 INFO L226 Difference]: Without dead ends: 2947 [2022-07-21 06:07:57,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:07:57,371 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 7652 mSDsluCounter, 2922 mSDsCounter, 0 mSdLazyCounter, 2563 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7652 SdHoareTripleChecker+Valid, 3784 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 2563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:57,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7652 Valid, 3784 Invalid, 3201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 2563 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-21 06:07:57,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2947 states. [2022-07-21 06:07:57,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2947 to 1001. [2022-07-21 06:07:57,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2972420837589378) internal successors, (1270), 1000 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:07:57,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1270 transitions. [2022-07-21 06:07:57,790 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1270 transitions. Word has length 101 [2022-07-21 06:07:57,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:07:57,790 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1270 transitions. [2022-07-21 06:07:57,790 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) [2022-07-21 06:07:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1270 transitions. [2022-07-21 06:07:57,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:07:57,791 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:07:57,791 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] [2022-07-21 06:07:57,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-07-21 06:07:57,791 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:07:57,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:07:57,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1129794877, now seen corresponding path program 1 times [2022-07-21 06:07:57,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:07:57,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367479699] [2022-07-21 06:07:57,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:07:57,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:07:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:07:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:07:57,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:07:57,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367479699] [2022-07-21 06:07:57,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367479699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:07:57,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:07:57,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:07:57,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139978194] [2022-07-21 06:07:57,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:07:57,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:07:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:07:57,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:07:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:07:57,887 INFO L87 Difference]: Start difference. First operand 1001 states and 1270 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) [2022-07-21 06:07:59,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:07:59,925 INFO L93 Difference]: Finished difference Result 1919 states and 2528 transitions. [2022-07-21 06:07:59,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:07:59,926 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 [2022-07-21 06:07:59,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:07:59,928 INFO L225 Difference]: With dead ends: 1919 [2022-07-21 06:07:59,928 INFO L226 Difference]: Without dead ends: 1761 [2022-07-21 06:07:59,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:07:59,929 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 3901 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 2029 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3901 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:07:59,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3901 Valid, 3054 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 2029 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:07:59,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-21 06:08:00,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1001. [2022-07-21 06:08:00,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2951991828396323) internal successors, (1268), 1000 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:00,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1268 transitions. [2022-07-21 06:08:00,355 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1268 transitions. Word has length 101 [2022-07-21 06:08:00,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:00,356 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1268 transitions. [2022-07-21 06:08:00,356 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) [2022-07-21 06:08:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1268 transitions. [2022-07-21 06:08:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:00,357 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:00,357 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] [2022-07-21 06:08:00,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-07-21 06:08:00,357 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:00,357 INFO L85 PathProgramCache]: Analyzing trace with hash 2115351875, now seen corresponding path program 1 times [2022-07-21 06:08:00,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:00,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553439313] [2022-07-21 06:08:00,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:00,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:00,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:00,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:00,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553439313] [2022-07-21 06:08:00,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553439313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:00,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:00,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053244697] [2022-07-21 06:08:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:00,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:00,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:00,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:00,448 INFO L87 Difference]: Start difference. First operand 1001 states and 1268 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) [2022-07-21 06:08:02,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:02,479 INFO L93 Difference]: Finished difference Result 1767 states and 2298 transitions. [2022-07-21 06:08:02,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:02,479 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 [2022-07-21 06:08:02,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:02,481 INFO L225 Difference]: With dead ends: 1767 [2022-07-21 06:08:02,481 INFO L226 Difference]: Without dead ends: 1761 [2022-07-21 06:08:02,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:08:02,482 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 2489 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2021 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2489 SdHoareTripleChecker+Valid, 3056 SdHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 2021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:02,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2489 Valid, 3056 Invalid, 2153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 2021 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:08:02,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1761 states. [2022-07-21 06:08:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1761 to 1001. [2022-07-21 06:08:02,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 979 states have (on average 1.2931562819203268) internal successors, (1266), 1000 states have internal predecessors, (1266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1266 transitions. [2022-07-21 06:08:02,914 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1266 transitions. Word has length 101 [2022-07-21 06:08:02,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:02,914 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1266 transitions. [2022-07-21 06:08:02,914 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) [2022-07-21 06:08:02,914 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1266 transitions. [2022-07-21 06:08:02,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:02,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:02,915 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] [2022-07-21 06:08:02,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-07-21 06:08:02,915 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:02,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1375787382, now seen corresponding path program 1 times [2022-07-21 06:08:02,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:02,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647795000] [2022-07-21 06:08:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:03,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:03,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:03,011 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647795000] [2022-07-21 06:08:03,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647795000] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:03,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:03,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:03,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633145391] [2022-07-21 06:08:03,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:03,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:03,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:03,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:03,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:03,013 INFO L87 Difference]: Start difference. First operand 1001 states and 1266 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) [2022-07-21 06:08:05,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:05,026 INFO L93 Difference]: Finished difference Result 2009 states and 2657 transitions. [2022-07-21 06:08:05,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:05,027 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 [2022-07-21 06:08:05,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:05,028 INFO L225 Difference]: With dead ends: 2009 [2022-07-21 06:08:05,028 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:08:05,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:08:05,029 INFO L413 NwaCegarLoop]: 775 mSDtfsCounter, 2156 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:05,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3115 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:08:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:08:05,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 991. [2022-07-21 06:08:05,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 969 states have (on average 1.2941176470588236) internal successors, (1254), 990 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) [2022-07-21 06:08:05,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1254 transitions. [2022-07-21 06:08:05,468 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1254 transitions. Word has length 101 [2022-07-21 06:08:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:05,469 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1254 transitions. [2022-07-21 06:08:05,469 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) [2022-07-21 06:08:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1254 transitions. [2022-07-21 06:08:05,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:05,470 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:05,471 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] [2022-07-21 06:08:05,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-07-21 06:08:05,471 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:05,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:05,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1041958772, now seen corresponding path program 1 times [2022-07-21 06:08:05,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:05,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321722997] [2022-07-21 06:08:05,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:05,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321722997] [2022-07-21 06:08:05,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321722997] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:05,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:05,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:05,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658113073] [2022-07-21 06:08:05,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:05,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:05,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:05,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:05,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:05,577 INFO L87 Difference]: Start difference. First operand 991 states and 1254 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) [2022-07-21 06:08:07,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:07,641 INFO L93 Difference]: Finished difference Result 1989 states and 2632 transitions. [2022-07-21 06:08:07,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:07,641 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 [2022-07-21 06:08:07,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:07,643 INFO L225 Difference]: With dead ends: 1989 [2022-07-21 06:08:07,643 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:08:07,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:08:07,644 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 3086 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3086 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:07,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3086 Valid, 3279 Invalid, 2118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:08:07,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:08:08,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 986. [2022-07-21 06:08:08,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.2946058091286308) internal successors, (1248), 985 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1248 transitions. [2022-07-21 06:08:08,074 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1248 transitions. Word has length 101 [2022-07-21 06:08:08,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:08,074 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1248 transitions. [2022-07-21 06:08:08,074 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) [2022-07-21 06:08:08,074 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1248 transitions. [2022-07-21 06:08:08,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:08,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:08,076 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] [2022-07-21 06:08:08,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-07-21 06:08:08,076 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:08,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:08,077 INFO L85 PathProgramCache]: Analyzing trace with hash 650753541, now seen corresponding path program 1 times [2022-07-21 06:08:08,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:08,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050460299] [2022-07-21 06:08:08,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:08,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:08,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:08,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:08,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050460299] [2022-07-21 06:08:08,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050460299] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:08,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:08,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:08,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114127353] [2022-07-21 06:08:08,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:08,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:08,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:08,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:08,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:08,173 INFO L87 Difference]: Start difference. First operand 986 states and 1248 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) [2022-07-21 06:08:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:10,226 INFO L93 Difference]: Finished difference Result 1998 states and 2641 transitions. [2022-07-21 06:08:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:10,226 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 [2022-07-21 06:08:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:10,228 INFO L225 Difference]: With dead ends: 1998 [2022-07-21 06:08:10,228 INFO L226 Difference]: Without dead ends: 1812 [2022-07-21 06:08:10,229 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 [2022-07-21 06:08:10,229 INFO L413 NwaCegarLoop]: 842 mSDtfsCounter, 2637 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2637 SdHoareTripleChecker+Valid, 3387 SdHoareTripleChecker+Invalid, 2158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:10,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2637 Valid, 3387 Invalid, 2158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-21 06:08:10,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-07-21 06:08:10,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 981. [2022-07-21 06:08:10,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 959 states have (on average 1.2950990615224192) internal successors, (1242), 980 states have internal predecessors, (1242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:10,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1242 transitions. [2022-07-21 06:08:10,666 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1242 transitions. Word has length 101 [2022-07-21 06:08:10,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:10,666 INFO L495 AbstractCegarLoop]: Abstraction has 981 states and 1242 transitions. [2022-07-21 06:08:10,666 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) [2022-07-21 06:08:10,666 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1242 transitions. [2022-07-21 06:08:10,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-21 06:08:10,668 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:10,668 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] [2022-07-21 06:08:10,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-07-21 06:08:10,668 INFO L420 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:10,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:10,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1048495107, now seen corresponding path program 1 times [2022-07-21 06:08:10,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:10,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701223239] [2022-07-21 06:08:10,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:10,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:10,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:10,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701223239] [2022-07-21 06:08:10,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701223239] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:10,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:10,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:08:10,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275716883] [2022-07-21 06:08:10,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:10,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:10,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:10,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:10,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:10,815 INFO L87 Difference]: Start difference. First operand 981 states and 1242 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) [2022-07-21 06:08:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:14,543 INFO L93 Difference]: Finished difference Result 2645 states and 3577 transitions. [2022-07-21 06:08:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-21 06:08:14,543 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 [2022-07-21 06:08:14,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:14,546 INFO L225 Difference]: With dead ends: 2645 [2022-07-21 06:08:14,546 INFO L226 Difference]: Without dead ends: 2491 [2022-07-21 06:08:14,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-07-21 06:08:14,547 INFO L413 NwaCegarLoop]: 770 mSDtfsCounter, 5721 mSDsluCounter, 2509 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5721 SdHoareTripleChecker+Valid, 3279 SdHoareTripleChecker+Invalid, 2906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:14,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5721 Valid, 3279 Invalid, 2906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-21 06:08:14,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2022-07-21 06:08:15,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 986. [2022-07-21 06:08:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 964 states have (on average 1.2935684647302905) internal successors, (1247), 985 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) [2022-07-21 06:08:15,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1247 transitions. [2022-07-21 06:08:15,003 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1247 transitions. Word has length 101 [2022-07-21 06:08:15,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:15,004 INFO L495 AbstractCegarLoop]: Abstraction has 986 states and 1247 transitions. [2022-07-21 06:08:15,004 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) [2022-07-21 06:08:15,004 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1247 transitions. [2022-07-21 06:08:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:15,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:15,005 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] [2022-07-21 06:08:15,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-07-21 06:08:15,005 INFO L420 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:15,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:15,005 INFO L85 PathProgramCache]: Analyzing trace with hash 1646856919, now seen corresponding path program 1 times [2022-07-21 06:08:15,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:15,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717284598] [2022-07-21 06:08:15,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:15,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:15,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:15,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:15,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717284598] [2022-07-21 06:08:15,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717284598] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:15,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:15,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:15,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989529366] [2022-07-21 06:08:15,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:15,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:15,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:15,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:15,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:15,238 INFO L87 Difference]: Start difference. First operand 986 states and 1247 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:18,017 INFO L93 Difference]: Finished difference Result 2189 states and 2929 transitions. [2022-07-21 06:08:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:18,017 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:18,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:18,019 INFO L225 Difference]: With dead ends: 2189 [2022-07-21 06:08:18,019 INFO L226 Difference]: Without dead ends: 2039 [2022-07-21 06:08:18,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:18,020 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 4069 mSDsluCounter, 5077 mSDsCounter, 0 mSdLazyCounter, 2067 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4069 SdHoareTripleChecker+Valid, 6134 SdHoareTripleChecker+Invalid, 2260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:18,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4069 Valid, 6134 Invalid, 2260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2067 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:08:18,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2039 states. [2022-07-21 06:08:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2039 to 984. [2022-07-21 06:08:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 962 states have (on average 1.292099792099792) internal successors, (1243), 983 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) [2022-07-21 06:08:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1243 transitions. [2022-07-21 06:08:18,492 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1243 transitions. Word has length 102 [2022-07-21 06:08:18,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:18,492 INFO L495 AbstractCegarLoop]: Abstraction has 984 states and 1243 transitions. [2022-07-21 06:08:18,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:18,493 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1243 transitions. [2022-07-21 06:08:18,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:18,494 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:18,494 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] [2022-07-21 06:08:18,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-07-21 06:08:18,495 INFO L420 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:18,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:18,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1088930121, now seen corresponding path program 1 times [2022-07-21 06:08:18,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:18,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467293014] [2022-07-21 06:08:18,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:18,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:18,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:18,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:18,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467293014] [2022-07-21 06:08:18,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467293014] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:18,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:18,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:18,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678963210] [2022-07-21 06:08:18,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:18,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:18,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:18,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:18,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:18,747 INFO L87 Difference]: Start difference. First operand 984 states and 1243 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-21 06:08:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:22,286 INFO L93 Difference]: Finished difference Result 3404 states and 4578 transitions. [2022-07-21 06:08:22,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 06:08:22,287 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 [2022-07-21 06:08:22,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:22,290 INFO L225 Difference]: With dead ends: 3404 [2022-07-21 06:08:22,290 INFO L226 Difference]: Without dead ends: 3204 [2022-07-21 06:08:22,291 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 [2022-07-21 06:08:22,291 INFO L413 NwaCegarLoop]: 1623 mSDtfsCounter, 5128 mSDsluCounter, 11594 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5128 SdHoareTripleChecker+Valid, 13217 SdHoareTripleChecker+Invalid, 1404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:22,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5128 Valid, 13217 Invalid, 1404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-21 06:08:22,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3204 states. [2022-07-21 06:08:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3204 to 932. [2022-07-21 06:08:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 911 states have (on average 1.2908891328210756) internal successors, (1176), 931 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) [2022-07-21 06:08:22,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1176 transitions. [2022-07-21 06:08:22,779 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1176 transitions. Word has length 102 [2022-07-21 06:08:22,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:22,780 INFO L495 AbstractCegarLoop]: Abstraction has 932 states and 1176 transitions. [2022-07-21 06:08:22,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-21 06:08:22,780 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1176 transitions. [2022-07-21 06:08:22,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:22,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:22,781 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] [2022-07-21 06:08:22,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-07-21 06:08:22,781 INFO L420 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:22,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1385332425, now seen corresponding path program 1 times [2022-07-21 06:08:22,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:22,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953946212] [2022-07-21 06:08:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:22,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:22,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:23,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:23,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:23,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953946212] [2022-07-21 06:08:23,007 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953946212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:23,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:23,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561895160] [2022-07-21 06:08:23,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:23,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:23,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:23,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:23,008 INFO L87 Difference]: Start difference. First operand 932 states and 1176 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:25,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:25,273 INFO L93 Difference]: Finished difference Result 2396 states and 3211 transitions. [2022-07-21 06:08:25,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:25,274 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:25,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:25,276 INFO L225 Difference]: With dead ends: 2396 [2022-07-21 06:08:25,276 INFO L226 Difference]: Without dead ends: 2175 [2022-07-21 06:08:25,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:25,277 INFO L413 NwaCegarLoop]: 1262 mSDtfsCounter, 4886 mSDsluCounter, 4388 mSDsCounter, 0 mSdLazyCounter, 530 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4886 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:25,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4886 Valid, 5650 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 530 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:25,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2022-07-21 06:08:25,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 859. [2022-07-21 06:08:25,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 841 states have (on average 1.2889417360285376) internal successors, (1084), 858 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:25,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1084 transitions. [2022-07-21 06:08:25,754 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1084 transitions. Word has length 102 [2022-07-21 06:08:25,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:25,754 INFO L495 AbstractCegarLoop]: Abstraction has 859 states and 1084 transitions. [2022-07-21 06:08:25,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1084 transitions. [2022-07-21 06:08:25,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:25,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:25,755 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] [2022-07-21 06:08:25,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-07-21 06:08:25,755 INFO L420 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:25,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:25,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1283351432, now seen corresponding path program 1 times [2022-07-21 06:08:25,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:25,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095487581] [2022-07-21 06:08:25,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:25,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:25,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:25,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:25,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095487581] [2022-07-21 06:08:25,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095487581] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:25,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:25,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:25,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370502268] [2022-07-21 06:08:25,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:25,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:25,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:25,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:25,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:25,848 INFO L87 Difference]: Start difference. First operand 859 states and 1084 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) [2022-07-21 06:08:28,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:28,163 INFO L93 Difference]: Finished difference Result 1912 states and 2527 transitions. [2022-07-21 06:08:28,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:28,164 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 [2022-07-21 06:08:28,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:28,166 INFO L225 Difference]: With dead ends: 1912 [2022-07-21 06:08:28,167 INFO L226 Difference]: Without dead ends: 1693 [2022-07-21 06:08:28,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:08:28,168 INFO L413 NwaCegarLoop]: 866 mSDtfsCounter, 2953 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2953 SdHoareTripleChecker+Valid, 3458 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:28,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2953 Valid, 3458 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-21 06:08:28,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1693 states. [2022-07-21 06:08:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1693 to 849. [2022-07-21 06:08:28,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 849 states, 831 states have (on average 1.2900120336943441) internal successors, (1072), 848 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:28,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 849 states to 849 states and 1072 transitions. [2022-07-21 06:08:28,656 INFO L78 Accepts]: Start accepts. Automaton has 849 states and 1072 transitions. Word has length 102 [2022-07-21 06:08:28,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:28,657 INFO L495 AbstractCegarLoop]: Abstraction has 849 states and 1072 transitions. [2022-07-21 06:08:28,657 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) [2022-07-21 06:08:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 849 states and 1072 transitions. [2022-07-21 06:08:28,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:28,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:28,658 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] [2022-07-21 06:08:28,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-07-21 06:08:28,658 INFO L420 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:28,658 INFO L85 PathProgramCache]: Analyzing trace with hash 411891703, now seen corresponding path program 1 times [2022-07-21 06:08:28,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:28,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763444302] [2022-07-21 06:08:28,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:28,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:28,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:28,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:28,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763444302] [2022-07-21 06:08:28,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763444302] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:28,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:28,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:28,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173827259] [2022-07-21 06:08:28,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:28,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:28,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:28,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:28,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:28,885 INFO L87 Difference]: Start difference. First operand 849 states and 1072 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:30,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:30,308 INFO L93 Difference]: Finished difference Result 1526 states and 2036 transitions. [2022-07-21 06:08:30,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:08:30,309 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:30,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:30,310 INFO L225 Difference]: With dead ends: 1526 [2022-07-21 06:08:30,310 INFO L226 Difference]: Without dead ends: 1155 [2022-07-21 06:08:30,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-07-21 06:08:30,311 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 2941 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 4399 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:30,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 4399 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2022-07-21 06:08:30,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 626. [2022-07-21 06:08:30,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 613 states have (on average 1.2936378466557912) internal successors, (793), 625 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:30,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 793 transitions. [2022-07-21 06:08:30,733 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 793 transitions. Word has length 102 [2022-07-21 06:08:30,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:30,734 INFO L495 AbstractCegarLoop]: Abstraction has 626 states and 793 transitions. [2022-07-21 06:08:30,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 793 transitions. [2022-07-21 06:08:30,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:30,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:30,735 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, 1, 1, 1, 1] [2022-07-21 06:08:30,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-07-21 06:08:30,736 INFO L420 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:30,736 INFO L85 PathProgramCache]: Analyzing trace with hash 2070282935, now seen corresponding path program 1 times [2022-07-21 06:08:30,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:30,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378207071] [2022-07-21 06:08:30,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:30,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:30,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:30,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:30,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378207071] [2022-07-21 06:08:30,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378207071] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:30,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:30,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:30,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582649013] [2022-07-21 06:08:30,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:30,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:30,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:30,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:30,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:30,993 INFO L87 Difference]: Start difference. First operand 626 states and 793 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:32,597 INFO L93 Difference]: Finished difference Result 1360 states and 1844 transitions. [2022-07-21 06:08:32,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:32,597 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:32,599 INFO L225 Difference]: With dead ends: 1360 [2022-07-21 06:08:32,599 INFO L226 Difference]: Without dead ends: 1122 [2022-07-21 06:08:32,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:32,599 INFO L413 NwaCegarLoop]: 702 mSDtfsCounter, 2598 mSDsluCounter, 3104 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2598 SdHoareTripleChecker+Valid, 3806 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:32,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2598 Valid, 3806 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:32,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1122 states. [2022-07-21 06:08:32,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1122 to 536. [2022-07-21 06:08:32,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 524 states have (on average 1.297709923664122) internal successors, (680), 535 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:32,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 680 transitions. [2022-07-21 06:08:32,973 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 680 transitions. Word has length 102 [2022-07-21 06:08:32,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:32,973 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 680 transitions. [2022-07-21 06:08:32,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:32,973 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 680 transitions. [2022-07-21 06:08:32,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:32,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:32,974 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, 1, 1, 1, 1, 1, 1] [2022-07-21 06:08:32,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-07-21 06:08:32,974 INFO L420 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:32,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:32,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1059722039, now seen corresponding path program 1 times [2022-07-21 06:08:32,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:32,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542682123] [2022-07-21 06:08:32,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:32,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:33,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:33,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:33,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:33,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542682123] [2022-07-21 06:08:33,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542682123] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:33,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:33,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:33,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561445909] [2022-07-21 06:08:33,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:33,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:33,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:33,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:33,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:33,196 INFO L87 Difference]: Start difference. First operand 536 states and 680 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:35,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:35,443 INFO L93 Difference]: Finished difference Result 1823 states and 2482 transitions. [2022-07-21 06:08:35,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:35,444 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:35,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:35,446 INFO L225 Difference]: With dead ends: 1823 [2022-07-21 06:08:35,446 INFO L226 Difference]: Without dead ends: 1620 [2022-07-21 06:08:35,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:35,447 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 2857 mSDsluCounter, 4757 mSDsCounter, 0 mSdLazyCounter, 611 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 611 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:35,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2857 Valid, 5800 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 611 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:35,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1620 states. [2022-07-21 06:08:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1620 to 481. [2022-07-21 06:08:35,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 470 states have (on average 1.297872340425532) internal successors, (610), 480 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:35,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 610 transitions. [2022-07-21 06:08:35,819 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 610 transitions. Word has length 102 [2022-07-21 06:08:35,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:35,819 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 610 transitions. [2022-07-21 06:08:35,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:35,819 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 610 transitions. [2022-07-21 06:08:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:35,820 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:35,820 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] [2022-07-21 06:08:35,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-07-21 06:08:35,820 INFO L420 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:35,821 INFO L85 PathProgramCache]: Analyzing trace with hash 2015954551, now seen corresponding path program 1 times [2022-07-21 06:08:35,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:35,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738759740] [2022-07-21 06:08:35,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:35,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:36,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:36,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:36,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738759740] [2022-07-21 06:08:36,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738759740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:36,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:36,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:36,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86824599] [2022-07-21 06:08:36,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:36,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:36,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:36,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:36,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:36,090 INFO L87 Difference]: Start difference. First operand 481 states and 610 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-21 06:08:39,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:39,632 INFO L93 Difference]: Finished difference Result 2375 states and 3312 transitions. [2022-07-21 06:08:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:08:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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 [2022-07-21 06:08:39,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:39,635 INFO L225 Difference]: With dead ends: 2375 [2022-07-21 06:08:39,635 INFO L226 Difference]: Without dead ends: 2195 [2022-07-21 06:08:39,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:08:39,636 INFO L413 NwaCegarLoop]: 1171 mSDtfsCounter, 2717 mSDsluCounter, 7475 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 8646 SdHoareTripleChecker+Invalid, 994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:39,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2717 Valid, 8646 Invalid, 994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:08:39,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2195 states. [2022-07-21 06:08:39,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2195 to 449. [2022-07-21 06:08:39,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 439 states have (on average 1.2984054669703873) internal successors, (570), 448 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 570 transitions. [2022-07-21 06:08:39,982 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 570 transitions. Word has length 102 [2022-07-21 06:08:39,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:39,982 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 570 transitions. [2022-07-21 06:08:39,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 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) [2022-07-21 06:08:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 570 transitions. [2022-07-21 06:08:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-07-21 06:08:39,983 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:39,983 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] [2022-07-21 06:08:39,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-07-21 06:08:39,983 INFO L420 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:39,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1489984663, now seen corresponding path program 1 times [2022-07-21 06:08:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493285098] [2022-07-21 06:08:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:40,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:40,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:40,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493285098] [2022-07-21 06:08:40,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493285098] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:40,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:40,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:40,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612829715] [2022-07-21 06:08:40,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:40,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:40,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:40,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:40,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:40,220 INFO L87 Difference]: Start difference. First operand 449 states and 570 transitions. Second operand has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:42,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:42,473 INFO L93 Difference]: Finished difference Result 1429 states and 1995 transitions. [2022-07-21 06:08:42,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:42,473 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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 [2022-07-21 06:08:42,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:42,475 INFO L225 Difference]: With dead ends: 1429 [2022-07-21 06:08:42,475 INFO L226 Difference]: Without dead ends: 1280 [2022-07-21 06:08:42,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:42,475 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2428 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2428 SdHoareTripleChecker+Valid, 3141 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:42,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2428 Valid, 3141 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:42,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1280 states. [2022-07-21 06:08:42,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1280 to 448. [2022-07-21 06:08:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 438 states have (on average 1.2968036529680365) internal successors, (568), 447 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:42,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 568 transitions. [2022-07-21 06:08:42,833 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 568 transitions. Word has length 102 [2022-07-21 06:08:42,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:42,833 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 568 transitions. [2022-07-21 06:08:42,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.5) internal successors, (102), 12 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) [2022-07-21 06:08:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 568 transitions. [2022-07-21 06:08:42,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:42,834 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:42,834 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] [2022-07-21 06:08:42,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-07-21 06:08:42,834 INFO L420 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:42,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:42,834 INFO L85 PathProgramCache]: Analyzing trace with hash 883083848, now seen corresponding path program 1 times [2022-07-21 06:08:42,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:42,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083920797] [2022-07-21 06:08:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:42,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:43,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:43,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:43,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083920797] [2022-07-21 06:08:43,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083920797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:43,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:43,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:43,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624566702] [2022-07-21 06:08:43,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:43,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:43,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:43,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:43,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:43,069 INFO L87 Difference]: Start difference. First operand 448 states and 568 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) [2022-07-21 06:08:44,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:44,267 INFO L93 Difference]: Finished difference Result 838 states and 1114 transitions. [2022-07-21 06:08:44,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:08:44,268 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 [2022-07-21 06:08:44,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:44,269 INFO L225 Difference]: With dead ends: 838 [2022-07-21 06:08:44,269 INFO L226 Difference]: Without dead ends: 684 [2022-07-21 06:08:44,269 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 [2022-07-21 06:08:44,270 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 1743 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1743 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:44,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1743 Valid, 2751 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:44,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2022-07-21 06:08:44,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 438. [2022-07-21 06:08:44,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 429 states have (on average 1.289044289044289) internal successors, (553), 437 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:44,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 553 transitions. [2022-07-21 06:08:44,632 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 553 transitions. Word has length 103 [2022-07-21 06:08:44,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:44,632 INFO L495 AbstractCegarLoop]: Abstraction has 438 states and 553 transitions. [2022-07-21 06:08:44,632 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) [2022-07-21 06:08:44,632 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 553 transitions. [2022-07-21 06:08:44,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:44,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:44,633 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] [2022-07-21 06:08:44,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-07-21 06:08:44,633 INFO L420 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:44,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:44,633 INFO L85 PathProgramCache]: Analyzing trace with hash -989398264, now seen corresponding path program 1 times [2022-07-21 06:08:44,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133607017] [2022-07-21 06:08:44,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:44,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:44,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:44,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:44,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133607017] [2022-07-21 06:08:44,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133607017] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:44,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:44,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 06:08:44,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002366391] [2022-07-21 06:08:44,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:44,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 06:08:44,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:44,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 06:08:44,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-07-21 06:08:44,898 INFO L87 Difference]: Start difference. First operand 438 states and 553 transitions. Second operand has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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) [2022-07-21 06:08:48,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:48,476 INFO L93 Difference]: Finished difference Result 2242 states and 3133 transitions. [2022-07-21 06:08:48,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-21 06:08:48,476 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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 [2022-07-21 06:08:48,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:48,479 INFO L225 Difference]: With dead ends: 2242 [2022-07-21 06:08:48,479 INFO L226 Difference]: Without dead ends: 2037 [2022-07-21 06:08:48,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-07-21 06:08:48,480 INFO L413 NwaCegarLoop]: 1276 mSDtfsCounter, 2227 mSDsluCounter, 7161 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2227 SdHoareTripleChecker+Valid, 8437 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:48,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2227 Valid, 8437 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 06:08:48,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2037 states. [2022-07-21 06:08:48,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2037 to 381. [2022-07-21 06:08:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 375 states have (on average 1.2826666666666666) internal successors, (481), 380 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:48,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 481 transitions. [2022-07-21 06:08:48,823 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 481 transitions. Word has length 103 [2022-07-21 06:08:48,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:48,823 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 481 transitions. [2022-07-21 06:08:48,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.923076923076923) internal successors, (103), 13 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) [2022-07-21 06:08:48,823 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 481 transitions. [2022-07-21 06:08:48,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:48,824 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:48,824 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] [2022-07-21 06:08:48,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-07-21 06:08:48,824 INFO L420 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:48,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:48,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1769701400, now seen corresponding path program 1 times [2022-07-21 06:08:48,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:48,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831729541] [2022-07-21 06:08:48,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:48,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:49,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:49,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:49,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831729541] [2022-07-21 06:08:49,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831729541] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:49,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:49,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:49,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351217144] [2022-07-21 06:08:49,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:49,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:49,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:49,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:49,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:49,113 INFO L87 Difference]: Start difference. First operand 381 states and 481 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) [2022-07-21 06:08:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:50,218 INFO L93 Difference]: Finished difference Result 747 states and 996 transitions. [2022-07-21 06:08:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:50,218 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 [2022-07-21 06:08:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:50,219 INFO L225 Difference]: With dead ends: 747 [2022-07-21 06:08:50,219 INFO L226 Difference]: Without dead ends: 595 [2022-07-21 06:08:50,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:50,220 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 1740 mSDsluCounter, 1282 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1740 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:50,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1740 Valid, 1572 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2022-07-21 06:08:50,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 377. [2022-07-21 06:08:50,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 372 states have (on average 1.2795698924731183) internal successors, (476), 376 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:50,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 476 transitions. [2022-07-21 06:08:50,567 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 476 transitions. Word has length 103 [2022-07-21 06:08:50,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:50,567 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 476 transitions. [2022-07-21 06:08:50,567 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) [2022-07-21 06:08:50,567 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 476 transitions. [2022-07-21 06:08:50,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-21 06:08:50,567 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:50,568 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] [2022-07-21 06:08:50,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-07-21 06:08:50,568 INFO L420 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:50,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:50,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2005053800, now seen corresponding path program 1 times [2022-07-21 06:08:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:50,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155181476] [2022-07-21 06:08:50,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:50,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:50,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155181476] [2022-07-21 06:08:50,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155181476] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:50,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:50,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 06:08:50,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267879721] [2022-07-21 06:08:50,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:50,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 06:08:50,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:50,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 06:08:50,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-21 06:08:50,759 INFO L87 Difference]: Start difference. First operand 377 states and 476 transitions. Second operand has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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) [2022-07-21 06:08:52,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:52,423 INFO L93 Difference]: Finished difference Result 1022 states and 1407 transitions. [2022-07-21 06:08:52,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 06:08:52,423 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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 [2022-07-21 06:08:52,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:52,424 INFO L225 Difference]: With dead ends: 1022 [2022-07-21 06:08:52,424 INFO L226 Difference]: Without dead ends: 822 [2022-07-21 06:08:52,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2022-07-21 06:08:52,425 INFO L413 NwaCegarLoop]: 385 mSDtfsCounter, 1664 mSDsluCounter, 1449 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1834 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:52,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1834 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:52,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2022-07-21 06:08:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 325. [2022-07-21 06:08:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2919254658385093) internal successors, (416), 324 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:52,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 416 transitions. [2022-07-21 06:08:52,737 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 416 transitions. Word has length 103 [2022-07-21 06:08:52,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:52,737 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 416 transitions. [2022-07-21 06:08:52,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.363636363636363) internal successors, (103), 11 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) [2022-07-21 06:08:52,737 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 416 transitions. [2022-07-21 06:08:52,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-21 06:08:52,738 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:52,738 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] [2022-07-21 06:08:52,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-07-21 06:08:52,739 INFO L420 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:52,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:52,739 INFO L85 PathProgramCache]: Analyzing trace with hash -441491864, now seen corresponding path program 1 times [2022-07-21 06:08:52,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:52,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205018507] [2022-07-21 06:08:52,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:52,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:52,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:52,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205018507] [2022-07-21 06:08:52,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205018507] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:52,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:52,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:52,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319781661] [2022-07-21 06:08:52,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:52,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:52,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:52,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:52,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:52,860 INFO L87 Difference]: Start difference. First operand 325 states and 416 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:53,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:53,857 INFO L93 Difference]: Finished difference Result 521 states and 688 transitions. [2022-07-21 06:08:53,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-21 06:08:53,858 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-07-21 06:08:53,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:53,859 INFO L225 Difference]: With dead ends: 521 [2022-07-21 06:08:53,859 INFO L226 Difference]: Without dead ends: 513 [2022-07-21 06:08:53,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-07-21 06:08:53,859 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 1137 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1137 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:53,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1137 Valid, 784 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 06:08:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-21 06:08:54,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 325. [2022-07-21 06:08:54,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2888198757763976) internal successors, (415), 324 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:54,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 415 transitions. [2022-07-21 06:08:54,175 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 415 transitions. Word has length 105 [2022-07-21 06:08:54,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:54,175 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 415 transitions. [2022-07-21 06:08:54,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:54,176 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 415 transitions. [2022-07-21 06:08:54,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-07-21 06:08:54,176 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:54,176 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] [2022-07-21 06:08:54,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-07-21 06:08:54,176 INFO L420 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:54,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1706763544, now seen corresponding path program 1 times [2022-07-21 06:08:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:54,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051725437] [2022-07-21 06:08:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:54,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:54,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:54,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:54,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051725437] [2022-07-21 06:08:54,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051725437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:54,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:54,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:08:54,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973843353] [2022-07-21 06:08:54,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:54,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 06:08:54,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:54,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 06:08:54,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 06:08:54,266 INFO L87 Difference]: Start difference. First operand 325 states and 415 transitions. Second operand has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:55,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:55,250 INFO L93 Difference]: Finished difference Result 722 states and 972 transitions. [2022-07-21 06:08:55,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 06:08:55,250 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-07-21 06:08:55,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:55,251 INFO L225 Difference]: With dead ends: 722 [2022-07-21 06:08:55,251 INFO L226 Difference]: Without dead ends: 540 [2022-07-21 06:08:55,251 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 [2022-07-21 06:08:55,252 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 685 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 685 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:55,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [685 Valid, 817 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:55,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-07-21 06:08:55,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 325. [2022-07-21 06:08:55,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 322 states have (on average 1.2826086956521738) internal successors, (413), 324 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 413 transitions. [2022-07-21 06:08:55,570 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 413 transitions. Word has length 105 [2022-07-21 06:08:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:55,570 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 413 transitions. [2022-07-21 06:08:55,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.666666666666666) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:55,570 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 413 transitions. [2022-07-21 06:08:55,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 06:08:55,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:55,571 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] [2022-07-21 06:08:55,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-07-21 06:08:55,571 INFO L420 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:55,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:55,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1398650157, now seen corresponding path program 1 times [2022-07-21 06:08:55,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:55,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917464809] [2022-07-21 06:08:55,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:55,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:55,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:55,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:55,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917464809] [2022-07-21 06:08:55,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917464809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:55,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:55,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:08:55,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235084262] [2022-07-21 06:08:55,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:55,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:08:55,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:08:55,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:08:55,823 INFO L87 Difference]: Start difference. First operand 325 states and 413 transitions. Second operand has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:08:57,471 INFO L93 Difference]: Finished difference Result 831 states and 1141 transitions. [2022-07-21 06:08:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:08:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-07-21 06:08:57,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:08:57,473 INFO L225 Difference]: With dead ends: 831 [2022-07-21 06:08:57,473 INFO L226 Difference]: Without dead ends: 825 [2022-07-21 06:08:57,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:08:57,474 INFO L413 NwaCegarLoop]: 541 mSDtfsCounter, 1165 mSDsluCounter, 2150 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1165 SdHoareTripleChecker+Valid, 2691 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:08:57,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1165 Valid, 2691 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:08:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 825 states. [2022-07-21 06:08:57,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 825 to 319. [2022-07-21 06:08:57,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 317 states have (on average 1.2807570977917981) internal successors, (406), 318 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:57,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 406 transitions. [2022-07-21 06:08:57,800 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 406 transitions. Word has length 107 [2022-07-21 06:08:57,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:08:57,800 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 406 transitions. [2022-07-21 06:08:57,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.916666666666666) internal successors, (107), 12 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:08:57,801 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 406 transitions. [2022-07-21 06:08:57,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-07-21 06:08:57,801 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:08:57,801 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] [2022-07-21 06:08:57,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-07-21 06:08:57,801 INFO L420 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:08:57,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:08:57,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1448357139, now seen corresponding path program 1 times [2022-07-21 06:08:57,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:08:57,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464541027] [2022-07-21 06:08:57,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:08:57,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:08:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:08:58,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:08:58,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:08:58,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464541027] [2022-07-21 06:08:58,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464541027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:08:58,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:08:58,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-07-21 06:08:58,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348595248] [2022-07-21 06:08:58,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:08:58,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-21 06:08:58,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:08:58,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-21 06:08:58,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2022-07-21 06:08:58,716 INFO L87 Difference]: Start difference. First operand 319 states and 406 transitions. Second operand has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:02,007 INFO L93 Difference]: Finished difference Result 378 states and 468 transitions. [2022-07-21 06:09:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-21 06:09:02,008 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-07-21 06:09:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:02,008 INFO L225 Difference]: With dead ends: 378 [2022-07-21 06:09:02,008 INFO L226 Difference]: Without dead ends: 369 [2022-07-21 06:09:02,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=506, Invalid=2916, Unknown=0, NotChecked=0, Total=3422 [2022-07-21 06:09:02,009 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 835 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 3612 SdHoareTripleChecker+Invalid, 2352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:02,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 3612 Invalid, 2352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-21 06:09:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-07-21 06:09:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 341. [2022-07-21 06:09:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 339 states have (on average 1.2743362831858407) internal successors, (432), 340 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 432 transitions. [2022-07-21 06:09:02,338 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 432 transitions. Word has length 107 [2022-07-21 06:09:02,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:02,338 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 432 transitions. [2022-07-21 06:09:02,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.4516129032258065) internal successors, (107), 31 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:02,338 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 432 transitions. [2022-07-21 06:09:02,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-07-21 06:09:02,339 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:02,339 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] [2022-07-21 06:09:02,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-07-21 06:09:02,339 INFO L420 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:02,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1489766619, now seen corresponding path program 1 times [2022-07-21 06:09:02,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:02,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364405762] [2022-07-21 06:09:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:02,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:02,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:02,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364405762] [2022-07-21 06:09:02,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364405762] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:02,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:02,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 06:09:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006962688] [2022-07-21 06:09:02,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:02,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 06:09:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:02,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 06:09:02,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-07-21 06:09:02,601 INFO L87 Difference]: Start difference. First operand 341 states and 432 transitions. Second operand has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:04,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:04,353 INFO L93 Difference]: Finished difference Result 889 states and 1212 transitions. [2022-07-21 06:09:04,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-21 06:09:04,353 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-07-21 06:09:04,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:04,354 INFO L225 Difference]: With dead ends: 889 [2022-07-21 06:09:04,354 INFO L226 Difference]: Without dead ends: 873 [2022-07-21 06:09:04,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-07-21 06:09:04,355 INFO L413 NwaCegarLoop]: 560 mSDtfsCounter, 1049 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1049 SdHoareTripleChecker+Valid, 3208 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:04,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1049 Valid, 3208 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 06:09:04,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2022-07-21 06:09:04,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 306. [2022-07-21 06:09:04,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.2819672131147541) internal successors, (391), 305 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:04,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 391 transitions. [2022-07-21 06:09:04,680 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 391 transitions. Word has length 108 [2022-07-21 06:09:04,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:04,680 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 391 transitions. [2022-07-21 06:09:04,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.0) internal successors, (108), 12 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:04,680 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 391 transitions. [2022-07-21 06:09:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-07-21 06:09:04,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:04,681 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, 1, 1, 1] [2022-07-21 06:09:04,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-07-21 06:09:04,681 INFO L420 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 442348771, now seen corresponding path program 1 times [2022-07-21 06:09:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:04,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818665890] [2022-07-21 06:09:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:04,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:04,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:04,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:04,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818665890] [2022-07-21 06:09:04,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818665890] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:04,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:04,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:09:04,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525088410] [2022-07-21 06:09:04,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:04,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:09:04,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:04,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:09:04,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:09:04,771 INFO L87 Difference]: Start difference. First operand 306 states and 391 transitions. Second operand has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:08,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:08,095 INFO L93 Difference]: Finished difference Result 2082 states and 3031 transitions. [2022-07-21 06:09:08,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 06:09:08,095 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2022-07-21 06:09:08,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:08,097 INFO L225 Difference]: With dead ends: 2082 [2022-07-21 06:09:08,097 INFO L226 Difference]: Without dead ends: 1934 [2022-07-21 06:09:08,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2022-07-21 06:09:08,098 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 2329 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2329 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:08,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2329 Valid, 1886 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:09:08,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2022-07-21 06:09:08,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 452. [2022-07-21 06:09:08,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 451 states have (on average 1.3436807095343681) internal successors, (606), 451 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:08,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 606 transitions. [2022-07-21 06:09:08,710 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 606 transitions. Word has length 140 [2022-07-21 06:09:08,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:08,710 INFO L495 AbstractCegarLoop]: Abstraction has 452 states and 606 transitions. [2022-07-21 06:09:08,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.5) internal successors, (140), 8 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:08,710 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 606 transitions. [2022-07-21 06:09:08,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 06:09:08,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:08,711 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, 1, 1, 1, 1, 1] [2022-07-21 06:09:08,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-07-21 06:09:08,711 INFO L420 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:08,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:08,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1151920748, now seen corresponding path program 1 times [2022-07-21 06:09:08,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:08,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503327081] [2022-07-21 06:09:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:08,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:08,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:08,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:08,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:08,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503327081] [2022-07-21 06:09:08,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503327081] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:08,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:08,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 06:09:08,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213120766] [2022-07-21 06:09:08,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:08,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 06:09:08,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:08,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 06:09:08,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-07-21 06:09:08,796 INFO L87 Difference]: Start difference. First operand 452 states and 606 transitions. Second operand has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:12,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:12,333 INFO L93 Difference]: Finished difference Result 2364 states and 3432 transitions. [2022-07-21 06:09:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 06:09:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-07-21 06:09:12,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:12,335 INFO L225 Difference]: With dead ends: 2364 [2022-07-21 06:09:12,336 INFO L226 Difference]: Without dead ends: 2070 [2022-07-21 06:09:12,336 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 [2022-07-21 06:09:12,336 INFO L413 NwaCegarLoop]: 328 mSDtfsCounter, 1928 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1928 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:12,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1928 Valid, 1265 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 06:09:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-07-21 06:09:13,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 744. [2022-07-21 06:09:13,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 743 states have (on average 1.3970390309555856) internal successors, (1038), 743 states have internal predecessors, (1038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:13,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1038 transitions. [2022-07-21 06:09:13,475 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1038 transitions. Word has length 142 [2022-07-21 06:09:13,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 06:09:13,476 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1038 transitions. [2022-07-21 06:09:13,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.75) internal successors, (142), 8 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1038 transitions. [2022-07-21 06:09:13,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2022-07-21 06:09:13,476 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 06:09:13,476 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 06:09:13,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-07-21 06:09:13,477 INFO L420 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-07-21 06:09:13,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 06:09:13,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1593810451, now seen corresponding path program 1 times [2022-07-21 06:09:13,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 06:09:13,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343405828] [2022-07-21 06:09:13,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 06:09:13,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 06:09:13,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 06:09:13,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 06:09:13,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 06:09:13,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343405828] [2022-07-21 06:09:13,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343405828] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 06:09:13,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 06:09:13,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 06:09:13,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225898807] [2022-07-21 06:09:13,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 06:09:13,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 06:09:13,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 06:09:13,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 06:09:13,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:09:13,534 INFO L87 Difference]: Start difference. First operand 744 states and 1038 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 06:09:15,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 06:09:15,653 INFO L93 Difference]: Finished difference Result 1864 states and 2680 transitions. [2022-07-21 06:09:15,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 06:09:15,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2022-07-21 06:09:15,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 06:09:15,655 INFO L225 Difference]: With dead ends: 1864 [2022-07-21 06:09:15,655 INFO L226 Difference]: Without dead ends: 1278 [2022-07-21 06:09:15,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 06:09:15,656 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 98 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 06:09:15,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 545 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 06:09:15,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states.