/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 01:39:57,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 01:39:57,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 01:39:58,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 01:39:58,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 01:39:58,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 01:39:58,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 01:39:58,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 01:39:58,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 01:39:58,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 01:39:58,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 01:39:58,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 01:39:58,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 01:39:58,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 01:39:58,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 01:39:58,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 01:39:58,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 01:39:58,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 01:39:58,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 01:39:58,066 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 01:39:58,068 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 01:39:58,069 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 01:39:58,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 01:39:58,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 01:39:58,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 01:39:58,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 01:39:58,074 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 01:39:58,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 01:39:58,077 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 01:39:58,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 01:39:58,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 01:39:58,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 01:39:58,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 01:39:58,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 01:39:58,080 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 01:39:58,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 01:39:58,080 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 01:39:58,080 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 01:39:58,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 01:39:58,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 01:39:58,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 01:39:58,084 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-10 01:39:58,113 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 01:39:58,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 01:39:58,113 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 01:39:58,114 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 01:39:58,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 01:39:58,114 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 01:39:58,114 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 01:39:58,115 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 01:39:58,115 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 01:39:58,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 01:39:58,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 01:39:58,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 01:39:58,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 01:39:58,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 01:39:58,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:39:58,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 01:39:58,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 01:39:58,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 01:39:58,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 01:39:58,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 01:39:58,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 01:39:58,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 01:39:58,305 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 01:39:58,307 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 01:39:58,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-01-10 01:39:58,355 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f274cae4e/a8a8231f101b4904a933be7bc188bce3/FLAGc225f558e [2022-01-10 01:39:58,826 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 01:39:58,826 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-01-10 01:39:58,859 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f274cae4e/a8a8231f101b4904a933be7bc188bce3/FLAGc225f558e [2022-01-10 01:39:59,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f274cae4e/a8a8231f101b4904a933be7bc188bce3 [2022-01-10 01:39:59,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 01:39:59,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 01:39:59,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 01:39:59,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 01:39:59,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 01:39:59,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:39:59" (1/1) ... [2022-01-10 01:39:59,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17f98cdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:39:59, skipping insertion in model container [2022-01-10 01:39:59,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:39:59" (1/1) ... [2022-01-10 01:39:59,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 01:39:59,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 01:39:59,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-01-10 01:39:59,417 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-01-10 01:39:59,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-01-10 01:39:59,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-01-10 01:39:59,436 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-01-10 01:39:59,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-01-10 01:39:59,446 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-01-10 01:39:59,457 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-01-10 01:39:59,466 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-01-10 01:39:59,472 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-01-10 01:39:59,480 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-01-10 01:39:59,492 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-01-10 01:39:59,495 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-01-10 01:39:59,499 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-01-10 01:39:59,506 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-01-10 01:39:59,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-01-10 01:39:59,537 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-01-10 01:39:59,540 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-01-10 01:39:59,544 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-01-10 01:39:59,550 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-01-10 01:39:59,560 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-01-10 01:39:59,574 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-01-10 01:39:59,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:39:59,833 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 01:39:59,887 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[14183,14196] [2022-01-10 01:39:59,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[18907,18920] [2022-01-10 01:39:59,899 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20199,20212] [2022-01-10 01:39:59,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[20957,20970] [2022-01-10 01:39:59,905 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[22620,22633] [2022-01-10 01:39:59,908 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[23378,23391] [2022-01-10 01:39:59,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[24507,24520] [2022-01-10 01:39:59,917 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27132,27145] [2022-01-10 01:39:59,919 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[27893,27906] [2022-01-10 01:39:59,922 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[29025,29038] [2022-01-10 01:39:59,927 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[31116,31129] [2022-01-10 01:39:59,936 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35211,35224] [2022-01-10 01:39:59,938 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[35972,35985] [2022-01-10 01:39:59,941 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[37065,37078] [2022-01-10 01:39:59,945 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[39117,39130] [2022-01-10 01:39:59,953 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[42849,42862] [2022-01-10 01:40:00,001 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50027,50040] [2022-01-10 01:40:00,010 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[50788,50801] [2022-01-10 01:40:00,012 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[51920,51933] [2022-01-10 01:40:00,017 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[54011,54024] [2022-01-10 01:40:00,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[57572,57585] [2022-01-10 01:40:00,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c[63570,63583] [2022-01-10 01:40:00,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 01:40:00,185 INFO L208 MainTranslator]: Completed translation [2022-01-10 01:40:00,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00 WrapperNode [2022-01-10 01:40:00,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 01:40:00,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 01:40:00,186 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 01:40:00,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 01:40:00,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,315 INFO L137 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6593 [2022-01-10 01:40:00,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 01:40:00,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 01:40:00,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 01:40:00,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 01:40:00,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 01:40:00,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 01:40:00,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 01:40:00,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 01:40:00,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (1/1) ... [2022-01-10 01:40:00,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 01:40:00,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 01:40:00,453 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) [2022-01-10 01:40:00,455 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 [2022-01-10 01:40:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 01:40:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-10 01:40:00,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 01:40:00,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 01:40:00,664 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 01:40:00,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 01:40:02,493 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 01:40:02,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 01:40:02,508 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-10 01:40:02,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:02 BoogieIcfgContainer [2022-01-10 01:40:02,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 01:40:02,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 01:40:02,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 01:40:02,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 01:40:02,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:39:59" (1/3) ... [2022-01-10 01:40:02,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e41e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:02, skipping insertion in model container [2022-01-10 01:40:02,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:00" (2/3) ... [2022-01-10 01:40:02,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15e41e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:02, skipping insertion in model container [2022-01-10 01:40:02,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:02" (3/3) ... [2022-01-10 01:40:02,516 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.BOUNDED-12.pals.c.v+lhb-reducer.c [2022-01-10 01:40:02,519 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 01:40:02,519 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2022-01-10 01:40:02,555 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 01:40:02,560 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 01:40:02,560 INFO L340 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-01-10 01:40:02,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:02,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 01:40:02,597 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:02,598 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:02,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:02,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:02,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1995797141, now seen corresponding path program 1 times [2022-01-10 01:40:02,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:02,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473515678] [2022-01-10 01:40:02,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:02,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:02,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:02,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473515678] [2022-01-10 01:40:02,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473515678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:02,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:02,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:02,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211996627] [2022-01-10 01:40:02,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:02,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:02,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:02,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:02,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:02,919 INFO L87 Difference]: Start difference. First operand has 1131 states, 1108 states have (on average 1.855595667870036) internal successors, (2056), 1130 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:03,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:03,741 INFO L93 Difference]: Finished difference Result 2063 states and 3582 transitions. [2022-01-10 01:40:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:03,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-10 01:40:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:03,760 INFO L225 Difference]: With dead ends: 2063 [2022-01-10 01:40:03,761 INFO L226 Difference]: Without dead ends: 1223 [2022-01-10 01:40:03,772 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:03,779 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 5615 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5615 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:03,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5615 Valid, 1396 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:40:03,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2022-01-10 01:40:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1143. [2022-01-10 01:40:03,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 1121 states have (on average 1.3648528099910795) internal successors, (1530), 1142 states have internal predecessors, (1530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:03,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1530 transitions. [2022-01-10 01:40:03,939 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1530 transitions. Word has length 86 [2022-01-10 01:40:03,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:03,940 INFO L470 AbstractCegarLoop]: Abstraction has 1143 states and 1530 transitions. [2022-01-10 01:40:03,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:03,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1530 transitions. [2022-01-10 01:40:03,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-01-10 01:40:03,944 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:03,944 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:03,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 01:40:03,945 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:03,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:03,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1029751, now seen corresponding path program 1 times [2022-01-10 01:40:03,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:03,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308549399] [2022-01-10 01:40:03,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:03,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:04,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:04,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:04,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308549399] [2022-01-10 01:40:04,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308549399] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:04,084 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:04,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:04,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845918150] [2022-01-10 01:40:04,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:04,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:04,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:04,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:04,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:04,086 INFO L87 Difference]: Start difference. First operand 1143 states and 1530 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:04,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:04,492 INFO L93 Difference]: Finished difference Result 1986 states and 2729 transitions. [2022-01-10 01:40:04,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:04,492 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 [2022-01-10 01:40:04,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:04,498 INFO L225 Difference]: With dead ends: 1986 [2022-01-10 01:40:04,498 INFO L226 Difference]: Without dead ends: 1039 [2022-01-10 01:40:04,499 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:04,503 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 2867 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2867 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:04,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2867 Valid, 569 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 473 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:40:04,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2022-01-10 01:40:04,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2022-01-10 01:40:04,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 1017 states have (on average 1.384464110127827) internal successors, (1408), 1038 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:04,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1408 transitions. [2022-01-10 01:40:04,535 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1408 transitions. Word has length 87 [2022-01-10 01:40:04,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:04,536 INFO L470 AbstractCegarLoop]: Abstraction has 1039 states and 1408 transitions. [2022-01-10 01:40:04,536 INFO L471 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) [2022-01-10 01:40:04,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1408 transitions. [2022-01-10 01:40:04,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 01:40:04,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:04,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:04,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 01:40:04,540 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:04,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:04,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1805729392, now seen corresponding path program 1 times [2022-01-10 01:40:04,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:04,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077201302] [2022-01-10 01:40:04,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:04,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:04,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:04,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:04,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077201302] [2022-01-10 01:40:04,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077201302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:04,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:04,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:04,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846604895] [2022-01-10 01:40:04,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:04,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:04,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:04,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:04,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:04,659 INFO L87 Difference]: Start difference. First operand 1039 states and 1408 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:05,029 INFO L93 Difference]: Finished difference Result 1882 states and 2605 transitions. [2022-01-10 01:40:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:05,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2022-01-10 01:40:05,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:05,033 INFO L225 Difference]: With dead ends: 1882 [2022-01-10 01:40:05,033 INFO L226 Difference]: Without dead ends: 975 [2022-01-10 01:40:05,034 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:05,035 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 2682 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2682 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:05,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2682 Valid, 537 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:40:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2022-01-10 01:40:05,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 975. [2022-01-10 01:40:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 953 states have (on average 1.3997901364113325) internal successors, (1334), 974 states have internal predecessors, (1334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1334 transitions. [2022-01-10 01:40:05,101 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1334 transitions. Word has length 88 [2022-01-10 01:40:05,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:05,101 INFO L470 AbstractCegarLoop]: Abstraction has 975 states and 1334 transitions. [2022-01-10 01:40:05,101 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,102 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1334 transitions. [2022-01-10 01:40:05,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 01:40:05,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:05,103 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:05,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 01:40:05,103 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:05,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:05,104 INFO L85 PathProgramCache]: Analyzing trace with hash 19097864, now seen corresponding path program 1 times [2022-01-10 01:40:05,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:05,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269059625] [2022-01-10 01:40:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:05,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:05,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:05,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:05,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269059625] [2022-01-10 01:40:05,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269059625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:05,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:05,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:05,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515302740] [2022-01-10 01:40:05,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:05,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:05,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:05,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:05,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:05,159 INFO L87 Difference]: Start difference. First operand 975 states and 1334 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:05,500 INFO L93 Difference]: Finished difference Result 1818 states and 2529 transitions. [2022-01-10 01:40:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:05,500 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 [2022-01-10 01:40:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:05,503 INFO L225 Difference]: With dead ends: 1818 [2022-01-10 01:40:05,503 INFO L226 Difference]: Without dead ends: 934 [2022-01-10 01:40:05,504 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:05,505 INFO L933 BasicCegarLoop]: 500 mSDtfsCounter, 2582 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:05,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2582 Valid, 512 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:40:05,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2022-01-10 01:40:05,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2022-01-10 01:40:05,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.4111842105263157) internal successors, (1287), 933 states have internal predecessors, (1287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1287 transitions. [2022-01-10 01:40:05,532 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1287 transitions. Word has length 89 [2022-01-10 01:40:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:05,533 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1287 transitions. [2022-01-10 01:40:05,533 INFO L471 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) [2022-01-10 01:40:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1287 transitions. [2022-01-10 01:40:05,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 01:40:05,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:05,534 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:05,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 01:40:05,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:05,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:05,535 INFO L85 PathProgramCache]: Analyzing trace with hash 817016169, now seen corresponding path program 1 times [2022-01-10 01:40:05,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:05,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435254415] [2022-01-10 01:40:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:05,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:05,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:05,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:05,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435254415] [2022-01-10 01:40:05,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435254415] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:05,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:05,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:05,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323928455] [2022-01-10 01:40:05,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:05,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:05,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:05,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:05,588 INFO L87 Difference]: Start difference. First operand 934 states and 1287 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:05,932 INFO L93 Difference]: Finished difference Result 1777 states and 2480 transitions. [2022-01-10 01:40:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:05,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-01-10 01:40:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:05,936 INFO L225 Difference]: With dead ends: 1777 [2022-01-10 01:40:05,936 INFO L226 Difference]: Without dead ends: 915 [2022-01-10 01:40:05,938 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:05,938 INFO L933 BasicCegarLoop]: 481 mSDtfsCounter, 2499 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:05,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2499 Valid, 501 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 01:40:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2022-01-10 01:40:05,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 915. [2022-01-10 01:40:05,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 915 states, 893 states have (on average 1.4154535274356104) internal successors, (1264), 914 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 915 states to 915 states and 1264 transitions. [2022-01-10 01:40:05,968 INFO L78 Accepts]: Start accepts. Automaton has 915 states and 1264 transitions. Word has length 90 [2022-01-10 01:40:05,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:05,969 INFO L470 AbstractCegarLoop]: Abstraction has 915 states and 1264 transitions. [2022-01-10 01:40:05,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:05,969 INFO L276 IsEmpty]: Start isEmpty. Operand 915 states and 1264 transitions. [2022-01-10 01:40:05,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 01:40:05,970 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:05,970 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:05,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 01:40:05,971 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:05,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:05,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1321361543, now seen corresponding path program 1 times [2022-01-10 01:40:05,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:05,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679956241] [2022-01-10 01:40:05,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:05,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:06,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:06,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:06,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679956241] [2022-01-10 01:40:06,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679956241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:06,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:06,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 01:40:06,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468406202] [2022-01-10 01:40:06,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:06,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 01:40:06,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:06,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 01:40:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 01:40:06,057 INFO L87 Difference]: Start difference. First operand 915 states and 1264 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:06,526 INFO L93 Difference]: Finished difference Result 1758 states and 2455 transitions. [2022-01-10 01:40:06,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 01:40:06,526 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 [2022-01-10 01:40:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:06,529 INFO L225 Difference]: With dead ends: 1758 [2022-01-10 01:40:06,529 INFO L226 Difference]: Without dead ends: 910 [2022-01-10 01:40:06,530 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:06,530 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2361 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:06,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2361 Valid, 426 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 01:40:06,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2022-01-10 01:40:06,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 910. [2022-01-10 01:40:06,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4144144144144144) internal successors, (1256), 909 states have internal predecessors, (1256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:06,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1256 transitions. [2022-01-10 01:40:06,559 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1256 transitions. Word has length 91 [2022-01-10 01:40:06,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:06,559 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1256 transitions. [2022-01-10 01:40:06,560 INFO L471 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) [2022-01-10 01:40:06,560 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1256 transitions. [2022-01-10 01:40:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:40:06,561 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:06,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:06,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 01:40:06,561 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:06,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:06,561 INFO L85 PathProgramCache]: Analyzing trace with hash 471449544, now seen corresponding path program 1 times [2022-01-10 01:40:06,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:06,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011722959] [2022-01-10 01:40:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:06,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:06,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:06,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:06,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011722959] [2022-01-10 01:40:06,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011722959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:06,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:06,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:06,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379994755] [2022-01-10 01:40:06,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:06,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:06,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:06,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:06,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:06,708 INFO L87 Difference]: Start difference. First operand 910 states and 1256 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:07,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:07,793 INFO L93 Difference]: Finished difference Result 1936 states and 2726 transitions. [2022-01-10 01:40:07,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:07,794 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 01:40:07,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:07,798 INFO L225 Difference]: With dead ends: 1936 [2022-01-10 01:40:07,798 INFO L226 Difference]: Without dead ends: 1738 [2022-01-10 01:40:07,799 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:07,800 INFO L933 BasicCegarLoop]: 527 mSDtfsCounter, 5229 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 2241 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:07,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5229 Valid, 2241 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:07,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-01-10 01:40:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-01-10 01:40:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4132882882882882) internal successors, (1255), 909 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:07,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1255 transitions. [2022-01-10 01:40:07,866 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1255 transitions. Word has length 92 [2022-01-10 01:40:07,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:07,867 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1255 transitions. [2022-01-10 01:40:07,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:07,867 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1255 transitions. [2022-01-10 01:40:07,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:40:07,868 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:07,868 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:07,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 01:40:07,869 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:07,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1530881816, now seen corresponding path program 1 times [2022-01-10 01:40:07,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:07,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542157025] [2022-01-10 01:40:07,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:07,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:08,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:08,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542157025] [2022-01-10 01:40:08,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542157025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:08,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:08,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:40:08,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259010995] [2022-01-10 01:40:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:08,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:40:08,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:08,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:40:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:40:08,061 INFO L87 Difference]: Start difference. First operand 910 states and 1255 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:09,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:09,463 INFO L93 Difference]: Finished difference Result 2093 states and 2923 transitions. [2022-01-10 01:40:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 01:40:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 01:40:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:09,469 INFO L225 Difference]: With dead ends: 2093 [2022-01-10 01:40:09,469 INFO L226 Difference]: Without dead ends: 1881 [2022-01-10 01:40:09,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-01-10 01:40:09,470 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 5864 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5864 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 2586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:09,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5864 Valid, 3247 Invalid, 2586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 01:40:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1881 states. [2022-01-10 01:40:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1881 to 913. [2022-01-10 01:40:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 891 states have (on average 1.4118967452300786) internal successors, (1258), 912 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:09,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1258 transitions. [2022-01-10 01:40:09,524 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1258 transitions. Word has length 92 [2022-01-10 01:40:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:09,525 INFO L470 AbstractCegarLoop]: Abstraction has 913 states and 1258 transitions. [2022-01-10 01:40:09,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 11 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:09,525 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1258 transitions. [2022-01-10 01:40:09,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:40:09,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:09,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:09,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 01:40:09,526 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:09,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:09,527 INFO L85 PathProgramCache]: Analyzing trace with hash 348627122, now seen corresponding path program 1 times [2022-01-10 01:40:09,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:09,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172999028] [2022-01-10 01:40:09,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:09,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:09,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:09,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172999028] [2022-01-10 01:40:09,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172999028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:09,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:09,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:09,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934024530] [2022-01-10 01:40:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:09,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:09,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:09,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:09,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:09,625 INFO L87 Difference]: Start difference. First operand 913 states and 1258 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:10,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:10,831 INFO L93 Difference]: Finished difference Result 1755 states and 2441 transitions. [2022-01-10 01:40:10,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:10,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 01:40:10,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:10,836 INFO L225 Difference]: With dead ends: 1755 [2022-01-10 01:40:10,836 INFO L226 Difference]: Without dead ends: 1488 [2022-01-10 01:40:10,837 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:10,837 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 4470 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 2228 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4470 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 2259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 2228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:10,837 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4470 Valid, 2810 Invalid, 2259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 2228 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:40:10,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1488 states. [2022-01-10 01:40:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1488 to 910. [2022-01-10 01:40:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.412162162162162) internal successors, (1254), 909 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1254 transitions. [2022-01-10 01:40:10,892 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1254 transitions. Word has length 92 [2022-01-10 01:40:10,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:10,893 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1254 transitions. [2022-01-10 01:40:10,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1254 transitions. [2022-01-10 01:40:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 01:40:10,894 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:10,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:10,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 01:40:10,894 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:10,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash 889427447, now seen corresponding path program 1 times [2022-01-10 01:40:10,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:10,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686312688] [2022-01-10 01:40:10,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:10,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:10,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:10,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:10,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686312688] [2022-01-10 01:40:10,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686312688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:10,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:10,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 01:40:10,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809198057] [2022-01-10 01:40:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:10,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 01:40:10,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 01:40:10,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-01-10 01:40:10,975 INFO L87 Difference]: Start difference. First operand 910 states and 1254 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:11,670 INFO L93 Difference]: Finished difference Result 1659 states and 2225 transitions. [2022-01-10 01:40:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 01:40:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 01:40:11,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:11,674 INFO L225 Difference]: With dead ends: 1659 [2022-01-10 01:40:11,674 INFO L226 Difference]: Without dead ends: 1239 [2022-01-10 01:40:11,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-01-10 01:40:11,675 INFO L933 BasicCegarLoop]: 411 mSDtfsCounter, 3810 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3810 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:11,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3810 Valid, 1045 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 01:40:11,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2022-01-10 01:40:11,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 910. [2022-01-10 01:40:11,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4110360360360361) internal successors, (1253), 909 states have internal predecessors, (1253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:11,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1253 transitions. [2022-01-10 01:40:11,763 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1253 transitions. Word has length 92 [2022-01-10 01:40:11,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:11,763 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1253 transitions. [2022-01-10 01:40:11,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:11,763 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1253 transitions. [2022-01-10 01:40:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:11,769 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:11,769 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:11,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 01:40:11,771 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:11,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:11,772 INFO L85 PathProgramCache]: Analyzing trace with hash -709696546, now seen corresponding path program 1 times [2022-01-10 01:40:11,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:11,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489989259] [2022-01-10 01:40:11,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:11,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:11,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:11,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489989259] [2022-01-10 01:40:11,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489989259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:11,903 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:11,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:11,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685740493] [2022-01-10 01:40:11,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:11,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:11,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:11,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:11,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:11,904 INFO L87 Difference]: Start difference. First operand 910 states and 1253 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:12,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:12,732 INFO L93 Difference]: Finished difference Result 1542 states and 2156 transitions. [2022-01-10 01:40:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 01:40:12,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:12,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:12,735 INFO L225 Difference]: With dead ends: 1542 [2022-01-10 01:40:12,736 INFO L226 Difference]: Without dead ends: 1140 [2022-01-10 01:40:12,736 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-10 01:40:12,737 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 2967 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:12,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2967 Valid, 2134 Invalid, 1721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 01:40:12,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2022-01-10 01:40:12,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 910. [2022-01-10 01:40:12,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4087837837837838) internal successors, (1251), 909 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:12,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1251 transitions. [2022-01-10 01:40:12,801 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1251 transitions. Word has length 94 [2022-01-10 01:40:12,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:12,801 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1251 transitions. [2022-01-10 01:40:12,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1251 transitions. [2022-01-10 01:40:12,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:12,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:12,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:12,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 01:40:12,803 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:12,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash -904842275, now seen corresponding path program 1 times [2022-01-10 01:40:12,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:12,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966939525] [2022-01-10 01:40:12,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:12,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:12,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:12,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966939525] [2022-01-10 01:40:12,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966939525] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:12,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:12,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:12,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419884506] [2022-01-10 01:40:12,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:12,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:12,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:12,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:12,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:12,906 INFO L87 Difference]: Start difference. First operand 910 states and 1251 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:13,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:13,966 INFO L93 Difference]: Finished difference Result 1643 states and 2262 transitions. [2022-01-10 01:40:13,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:13,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:13,971 INFO L225 Difference]: With dead ends: 1643 [2022-01-10 01:40:13,971 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:13,971 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:13,972 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 2456 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 1801 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2456 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:13,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2456 Valid, 2134 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1801 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:13,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:14,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:14,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4065315315315314) internal successors, (1249), 909 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:14,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1249 transitions. [2022-01-10 01:40:14,042 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1249 transitions. Word has length 94 [2022-01-10 01:40:14,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:14,042 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1249 transitions. [2022-01-10 01:40:14,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1249 transitions. [2022-01-10 01:40:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:14,043 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:14,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:14,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 01:40:14,044 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:14,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:14,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1510616083, now seen corresponding path program 1 times [2022-01-10 01:40:14,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:14,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115793616] [2022-01-10 01:40:14,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:14,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:14,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:14,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115793616] [2022-01-10 01:40:14,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115793616] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:14,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:14,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:14,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984825901] [2022-01-10 01:40:14,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:14,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:14,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:14,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:14,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:14,125 INFO L87 Difference]: Start difference. First operand 910 states and 1249 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:15,201 INFO L93 Difference]: Finished difference Result 1984 states and 2782 transitions. [2022-01-10 01:40:15,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:15,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:15,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:15,206 INFO L225 Difference]: With dead ends: 1984 [2022-01-10 01:40:15,206 INFO L226 Difference]: Without dead ends: 1738 [2022-01-10 01:40:15,206 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:15,207 INFO L933 BasicCegarLoop]: 796 mSDtfsCounter, 2976 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2976 SdHoareTripleChecker+Valid, 3288 SdHoareTripleChecker+Invalid, 2575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:15,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2976 Valid, 3288 Invalid, 2575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:15,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-01-10 01:40:15,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-01-10 01:40:15,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4042792792792793) internal successors, (1247), 909 states have internal predecessors, (1247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:15,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1247 transitions. [2022-01-10 01:40:15,279 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1247 transitions. Word has length 94 [2022-01-10 01:40:15,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:15,279 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1247 transitions. [2022-01-10 01:40:15,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:15,280 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1247 transitions. [2022-01-10 01:40:15,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:15,281 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:15,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:15,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 01:40:15,281 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:15,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:15,281 INFO L85 PathProgramCache]: Analyzing trace with hash -10217144, now seen corresponding path program 1 times [2022-01-10 01:40:15,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:15,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770452540] [2022-01-10 01:40:15,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:15,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:15,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:15,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770452540] [2022-01-10 01:40:15,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770452540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:15,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:15,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:15,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183536422] [2022-01-10 01:40:15,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:15,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:15,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:15,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:15,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:15,359 INFO L87 Difference]: Start difference. First operand 910 states and 1247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:16,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:16,448 INFO L93 Difference]: Finished difference Result 1950 states and 2731 transitions. [2022-01-10 01:40:16,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:16,448 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:16,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:16,454 INFO L225 Difference]: With dead ends: 1950 [2022-01-10 01:40:16,454 INFO L226 Difference]: Without dead ends: 1738 [2022-01-10 01:40:16,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:16,455 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 3272 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 2397 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:16,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3272 Valid, 3115 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-01-10 01:40:16,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-01-10 01:40:16,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4031531531531531) internal successors, (1246), 909 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:16,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1246 transitions. [2022-01-10 01:40:16,531 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1246 transitions. Word has length 94 [2022-01-10 01:40:16,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:16,531 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1246 transitions. [2022-01-10 01:40:16,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:16,531 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1246 transitions. [2022-01-10 01:40:16,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:16,532 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:16,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:16,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 01:40:16,533 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:16,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:16,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1869291794, now seen corresponding path program 1 times [2022-01-10 01:40:16,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:16,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741042274] [2022-01-10 01:40:16,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:16,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:16,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:16,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:16,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:16,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741042274] [2022-01-10 01:40:16,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741042274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:16,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:16,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:16,612 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361601815] [2022-01-10 01:40:16,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:16,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:16,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:16,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:16,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:16,613 INFO L87 Difference]: Start difference. First operand 910 states and 1246 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:17,723 INFO L93 Difference]: Finished difference Result 1791 states and 2476 transitions. [2022-01-10 01:40:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:17,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:17,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:17,728 INFO L225 Difference]: With dead ends: 1791 [2022-01-10 01:40:17,728 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:17,729 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:17,729 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 4659 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4659 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 2048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:17,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4659 Valid, 2133 Invalid, 2048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:17,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:17,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:17,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.402027027027027) internal successors, (1245), 909 states have internal predecessors, (1245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1245 transitions. [2022-01-10 01:40:17,827 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1245 transitions. Word has length 94 [2022-01-10 01:40:17,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:17,827 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1245 transitions. [2022-01-10 01:40:17,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1245 transitions. [2022-01-10 01:40:17,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:17,828 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:17,828 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:17,828 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 01:40:17,829 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:17,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:17,829 INFO L85 PathProgramCache]: Analyzing trace with hash 191796868, now seen corresponding path program 1 times [2022-01-10 01:40:17,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:17,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804967952] [2022-01-10 01:40:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:17,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:17,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:17,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:17,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:17,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804967952] [2022-01-10 01:40:17,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804967952] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:17,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:17,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:17,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301632604] [2022-01-10 01:40:17,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:17,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:17,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:17,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:17,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:17,935 INFO L87 Difference]: Start difference. First operand 910 states and 1245 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:19,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:19,007 INFO L93 Difference]: Finished difference Result 1643 states and 2253 transitions. [2022-01-10 01:40:19,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:19,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:19,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:19,011 INFO L225 Difference]: With dead ends: 1643 [2022-01-10 01:40:19,012 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:19,012 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:19,012 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 4650 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 1785 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4650 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:19,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4650 Valid, 2134 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:19,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:19,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:19,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.4009009009009008) internal successors, (1244), 909 states have internal predecessors, (1244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1244 transitions. [2022-01-10 01:40:19,120 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1244 transitions. Word has length 94 [2022-01-10 01:40:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:19,120 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1244 transitions. [2022-01-10 01:40:19,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1244 transitions. [2022-01-10 01:40:19,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 01:40:19,122 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:19,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 01:40:19,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 01:40:19,122 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:19,122 INFO L85 PathProgramCache]: Analyzing trace with hash 1752938330, now seen corresponding path program 1 times [2022-01-10 01:40:19,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:19,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310604236] [2022-01-10 01:40:19,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:19,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:19,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:19,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310604236] [2022-01-10 01:40:19,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310604236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:19,200 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:19,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:19,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261078123] [2022-01-10 01:40:19,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:19,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:19,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:19,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:19,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:19,201 INFO L87 Difference]: Start difference. First operand 910 states and 1244 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:20,259 INFO L93 Difference]: Finished difference Result 1788 states and 2469 transitions. [2022-01-10 01:40:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:20,259 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 01:40:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:20,264 INFO L225 Difference]: With dead ends: 1788 [2022-01-10 01:40:20,264 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:20,264 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:20,265 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 3535 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 1780 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3535 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:20,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3535 Valid, 2137 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1780 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:40:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:20,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3997747747747749) internal successors, (1243), 909 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:20,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1243 transitions. [2022-01-10 01:40:20,349 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1243 transitions. Word has length 94 [2022-01-10 01:40:20,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:20,349 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1243 transitions. [2022-01-10 01:40:20,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:20,349 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1243 transitions. [2022-01-10 01:40:20,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:20,350 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:20,350 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:20,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 01:40:20,351 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:20,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:20,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1333702137, now seen corresponding path program 1 times [2022-01-10 01:40:20,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:20,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816031765] [2022-01-10 01:40:20,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:20,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:20,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:20,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:20,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816031765] [2022-01-10 01:40:20,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816031765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:20,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:20,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:20,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917754792] [2022-01-10 01:40:20,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:20,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:20,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:20,464 INFO L87 Difference]: Start difference. First operand 910 states and 1243 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:21,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:21,535 INFO L93 Difference]: Finished difference Result 1914 states and 2670 transitions. [2022-01-10 01:40:21,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:21,535 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 [2022-01-10 01:40:21,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:21,539 INFO L225 Difference]: With dead ends: 1914 [2022-01-10 01:40:21,540 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:21,540 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:40:21,543 INFO L933 BasicCegarLoop]: 622 mSDtfsCounter, 4664 mSDsluCounter, 2041 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4664 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 2132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:21,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4664 Valid, 2663 Invalid, 2132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 2059 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 01:40:21,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:21,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3975225225225225) internal successors, (1241), 909 states have internal predecessors, (1241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:21,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1241 transitions. [2022-01-10 01:40:21,634 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1241 transitions. Word has length 96 [2022-01-10 01:40:21,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:21,635 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1241 transitions. [2022-01-10 01:40:21,635 INFO L471 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) [2022-01-10 01:40:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1241 transitions. [2022-01-10 01:40:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:21,636 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:21,636 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:21,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 01:40:21,636 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:21,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:21,637 INFO L85 PathProgramCache]: Analyzing trace with hash 924856909, now seen corresponding path program 1 times [2022-01-10 01:40:21,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93037487] [2022-01-10 01:40:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:21,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:21,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:21,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:21,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93037487] [2022-01-10 01:40:21,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93037487] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:21,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:21,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:21,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558225987] [2022-01-10 01:40:21,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:21,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:21,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:21,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:21,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:21,739 INFO L87 Difference]: Start difference. First operand 910 states and 1241 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:23,064 INFO L93 Difference]: Finished difference Result 1856 states and 2576 transitions. [2022-01-10 01:40:23,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:23,065 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 [2022-01-10 01:40:23,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:23,069 INFO L225 Difference]: With dead ends: 1856 [2022-01-10 01:40:23,069 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:23,070 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:23,070 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 3984 mSDsluCounter, 2424 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3984 SdHoareTripleChecker+Valid, 2981 SdHoareTripleChecker+Invalid, 2405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:23,070 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3984 Valid, 2981 Invalid, 2405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:40:23,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3952702702702702) internal successors, (1239), 909 states have internal predecessors, (1239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1239 transitions. [2022-01-10 01:40:23,168 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1239 transitions. Word has length 96 [2022-01-10 01:40:23,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:23,168 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1239 transitions. [2022-01-10 01:40:23,168 INFO L471 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) [2022-01-10 01:40:23,168 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1239 transitions. [2022-01-10 01:40:23,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:23,169 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:23,169 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:23,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 01:40:23,170 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:23,170 INFO L85 PathProgramCache]: Analyzing trace with hash 92967727, now seen corresponding path program 1 times [2022-01-10 01:40:23,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:23,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211601618] [2022-01-10 01:40:23,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:23,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:23,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:23,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:23,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211601618] [2022-01-10 01:40:23,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211601618] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:23,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:23,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:23,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869686410] [2022-01-10 01:40:23,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:23,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:23,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:23,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:23,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:23,245 INFO L87 Difference]: Start difference. First operand 910 states and 1239 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:24,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:24,482 INFO L93 Difference]: Finished difference Result 2016 states and 2805 transitions. [2022-01-10 01:40:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:24,482 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 [2022-01-10 01:40:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:24,485 INFO L225 Difference]: With dead ends: 2016 [2022-01-10 01:40:24,486 INFO L226 Difference]: Without dead ends: 1738 [2022-01-10 01:40:24,486 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:24,487 INFO L933 BasicCegarLoop]: 809 mSDtfsCounter, 3999 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:24,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3999 Valid, 3134 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:24,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2022-01-10 01:40:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 910. [2022-01-10 01:40:24,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.393018018018018) internal successors, (1237), 909 states have internal predecessors, (1237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:24,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1237 transitions. [2022-01-10 01:40:24,589 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1237 transitions. Word has length 96 [2022-01-10 01:40:24,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:24,589 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1237 transitions. [2022-01-10 01:40:24,589 INFO L471 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) [2022-01-10 01:40:24,590 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1237 transitions. [2022-01-10 01:40:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:24,591 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:24,591 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:24,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 01:40:24,591 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:24,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:24,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1314061570, now seen corresponding path program 1 times [2022-01-10 01:40:24,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:24,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401622309] [2022-01-10 01:40:24,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:24,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:24,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:24,680 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:24,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401622309] [2022-01-10 01:40:24,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401622309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:24,681 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:24,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:24,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310904288] [2022-01-10 01:40:24,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:24,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:24,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:24,683 INFO L87 Difference]: Start difference. First operand 910 states and 1237 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:25,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:25,966 INFO L93 Difference]: Finished difference Result 1902 states and 2648 transitions. [2022-01-10 01:40:25,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:25,966 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 [2022-01-10 01:40:25,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:25,977 INFO L225 Difference]: With dead ends: 1902 [2022-01-10 01:40:25,977 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:25,979 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:25,980 INFO L933 BasicCegarLoop]: 679 mSDtfsCounter, 4087 mSDsluCounter, 2276 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4087 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 2306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:25,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4087 Valid, 2955 Invalid, 2306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:25,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:26,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:26,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3907657657657657) internal successors, (1235), 909 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1235 transitions. [2022-01-10 01:40:26,094 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1235 transitions. Word has length 96 [2022-01-10 01:40:26,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:26,095 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1235 transitions. [2022-01-10 01:40:26,095 INFO L471 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) [2022-01-10 01:40:26,102 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1235 transitions. [2022-01-10 01:40:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:26,110 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:26,110 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:26,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 01:40:26,111 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1839313585, now seen corresponding path program 1 times [2022-01-10 01:40:26,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:26,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033861356] [2022-01-10 01:40:26,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:26,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:26,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:26,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:26,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033861356] [2022-01-10 01:40:26,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033861356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:26,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:26,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:26,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907488746] [2022-01-10 01:40:26,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:26,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:26,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:26,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:26,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:26,228 INFO L87 Difference]: Start difference. First operand 910 states and 1235 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:27,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:27,568 INFO L93 Difference]: Finished difference Result 1850 states and 2563 transitions. [2022-01-10 01:40:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:27,570 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 [2022-01-10 01:40:27,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:27,572 INFO L225 Difference]: With dead ends: 1850 [2022-01-10 01:40:27,572 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:27,573 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:27,573 INFO L933 BasicCegarLoop]: 574 mSDtfsCounter, 3933 mSDsluCounter, 2479 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 2458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:27,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3933 Valid, 3053 Invalid, 2458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:27,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3885135135135136) internal successors, (1233), 909 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1233 transitions. [2022-01-10 01:40:27,682 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1233 transitions. Word has length 96 [2022-01-10 01:40:27,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:27,682 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1233 transitions. [2022-01-10 01:40:27,682 INFO L471 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) [2022-01-10 01:40:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1233 transitions. [2022-01-10 01:40:27,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:27,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:27,683 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:27,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 01:40:27,683 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:27,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:27,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1859604465, now seen corresponding path program 1 times [2022-01-10 01:40:27,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:27,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174409038] [2022-01-10 01:40:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:27,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:27,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:27,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:27,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174409038] [2022-01-10 01:40:27,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174409038] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:27,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:27,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:27,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266063071] [2022-01-10 01:40:27,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:27,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:27,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:27,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:27,784 INFO L87 Difference]: Start difference. First operand 910 states and 1233 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) [2022-01-10 01:40:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:29,167 INFO L93 Difference]: Finished difference Result 1902 states and 2641 transitions. [2022-01-10 01:40:29,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:29,167 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 [2022-01-10 01:40:29,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:29,170 INFO L225 Difference]: With dead ends: 1902 [2022-01-10 01:40:29,170 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:29,171 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:29,171 INFO L933 BasicCegarLoop]: 837 mSDtfsCounter, 3240 mSDsluCounter, 2529 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3240 SdHoareTripleChecker+Valid, 3366 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:29,171 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3240 Valid, 3366 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:40:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3862612612612613) internal successors, (1231), 909 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1231 transitions. [2022-01-10 01:40:29,284 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1231 transitions. Word has length 96 [2022-01-10 01:40:29,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:29,284 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1231 transitions. [2022-01-10 01:40:29,284 INFO L471 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) [2022-01-10 01:40:29,284 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1231 transitions. [2022-01-10 01:40:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:29,285 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:29,285 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:29,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 01:40:29,285 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:29,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:29,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1450759237, now seen corresponding path program 1 times [2022-01-10 01:40:29,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:29,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947274966] [2022-01-10 01:40:29,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:29,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:29,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:29,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:29,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947274966] [2022-01-10 01:40:29,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947274966] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:29,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:29,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:29,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551946600] [2022-01-10 01:40:29,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:29,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:29,390 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:29,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:29,391 INFO L87 Difference]: Start difference. First operand 910 states and 1231 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) [2022-01-10 01:40:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:30,562 INFO L93 Difference]: Finished difference Result 1852 states and 2560 transitions. [2022-01-10 01:40:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:30,562 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 [2022-01-10 01:40:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:30,565 INFO L225 Difference]: With dead ends: 1852 [2022-01-10 01:40:30,565 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:30,565 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:30,566 INFO L933 BasicCegarLoop]: 598 mSDtfsCounter, 3887 mSDsluCounter, 2549 mSDsCounter, 0 mSdLazyCounter, 2410 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3887 SdHoareTripleChecker+Valid, 3147 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:30,566 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3887 Valid, 3147 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 2410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:30,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:30,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:30,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.384009009009009) internal successors, (1229), 909 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:30,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1229 transitions. [2022-01-10 01:40:30,681 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1229 transitions. Word has length 96 [2022-01-10 01:40:30,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:30,681 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1229 transitions. [2022-01-10 01:40:30,682 INFO L471 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) [2022-01-10 01:40:30,682 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1229 transitions. [2022-01-10 01:40:30,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:30,683 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:30,683 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:30,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 01:40:30,683 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:30,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:30,683 INFO L85 PathProgramCache]: Analyzing trace with hash 627769446, now seen corresponding path program 1 times [2022-01-10 01:40:30,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:30,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560427903] [2022-01-10 01:40:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:30,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:30,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:30,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:30,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560427903] [2022-01-10 01:40:30,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560427903] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:30,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:30,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:30,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727381778] [2022-01-10 01:40:30,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:30,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:30,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:30,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:30,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:30,801 INFO L87 Difference]: Start difference. First operand 910 states and 1229 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) [2022-01-10 01:40:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:32,026 INFO L93 Difference]: Finished difference Result 1892 states and 2619 transitions. [2022-01-10 01:40:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:32,026 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 [2022-01-10 01:40:32,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:32,029 INFO L225 Difference]: With dead ends: 1892 [2022-01-10 01:40:32,029 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:32,030 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:32,031 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 3130 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 2435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:32,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3130 Valid, 3125 Invalid, 2435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:32,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:32,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:32,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.382882882882883) internal successors, (1228), 909 states have internal predecessors, (1228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:32,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1228 transitions. [2022-01-10 01:40:32,177 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1228 transitions. Word has length 96 [2022-01-10 01:40:32,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:32,177 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1228 transitions. [2022-01-10 01:40:32,177 INFO L471 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) [2022-01-10 01:40:32,177 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1228 transitions. [2022-01-10 01:40:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:32,178 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:32,178 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:32,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 01:40:32,179 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:32,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash 218924218, now seen corresponding path program 1 times [2022-01-10 01:40:32,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:32,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606832403] [2022-01-10 01:40:32,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:32,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:32,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:32,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:32,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606832403] [2022-01-10 01:40:32,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606832403] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:32,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:32,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:32,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176554092] [2022-01-10 01:40:32,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:32,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:32,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:32,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:32,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:32,284 INFO L87 Difference]: Start difference. First operand 910 states and 1228 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) [2022-01-10 01:40:33,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:33,624 INFO L93 Difference]: Finished difference Result 1846 states and 2549 transitions. [2022-01-10 01:40:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:33,625 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 [2022-01-10 01:40:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:33,627 INFO L225 Difference]: With dead ends: 1846 [2022-01-10 01:40:33,627 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:33,628 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:33,628 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 3837 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 2467 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:33,628 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3837 Valid, 3249 Invalid, 2567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2467 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:33,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:33,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:33,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3817567567567568) internal successors, (1227), 909 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:33,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1227 transitions. [2022-01-10 01:40:33,799 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1227 transitions. Word has length 96 [2022-01-10 01:40:33,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:33,799 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1227 transitions. [2022-01-10 01:40:33,800 INFO L471 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) [2022-01-10 01:40:33,800 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1227 transitions. [2022-01-10 01:40:33,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:33,800 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:33,801 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:33,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 01:40:33,801 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:33,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:33,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1223338080, now seen corresponding path program 1 times [2022-01-10 01:40:33,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:33,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74293677] [2022-01-10 01:40:33,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:33,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:33,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:33,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74293677] [2022-01-10 01:40:33,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74293677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:33,900 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:33,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:33,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919411030] [2022-01-10 01:40:33,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:33,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:33,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:33,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:33,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:33,901 INFO L87 Difference]: Start difference. First operand 910 states and 1227 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) [2022-01-10 01:40:35,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:35,284 INFO L93 Difference]: Finished difference Result 1842 states and 2544 transitions. [2022-01-10 01:40:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:35,284 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 [2022-01-10 01:40:35,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:35,288 INFO L225 Difference]: With dead ends: 1842 [2022-01-10 01:40:35,288 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:35,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:35,290 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 3829 mSDsluCounter, 2628 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3829 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:35,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3829 Valid, 3252 Invalid, 2565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:35,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:35,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:35,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3806306306306306) internal successors, (1226), 909 states have internal predecessors, (1226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1226 transitions. [2022-01-10 01:40:35,437 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1226 transitions. Word has length 96 [2022-01-10 01:40:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:35,438 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1226 transitions. [2022-01-10 01:40:35,438 INFO L471 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) [2022-01-10 01:40:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1226 transitions. [2022-01-10 01:40:35,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:35,439 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:35,439 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:35,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 01:40:35,440 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:35,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:35,440 INFO L85 PathProgramCache]: Analyzing trace with hash -2013822329, now seen corresponding path program 1 times [2022-01-10 01:40:35,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:35,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192468297] [2022-01-10 01:40:35,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:35,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:35,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:35,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192468297] [2022-01-10 01:40:35,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192468297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:35,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:35,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:35,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717537001] [2022-01-10 01:40:35,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:35,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:35,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:35,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:35,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:35,550 INFO L87 Difference]: Start difference. First operand 910 states and 1226 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) [2022-01-10 01:40:36,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:36,953 INFO L93 Difference]: Finished difference Result 1883 states and 2605 transitions. [2022-01-10 01:40:36,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:36,954 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 [2022-01-10 01:40:36,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:36,956 INFO L225 Difference]: With dead ends: 1883 [2022-01-10 01:40:36,956 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:36,957 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:40:36,957 INFO L933 BasicCegarLoop]: 781 mSDtfsCounter, 3658 mSDsluCounter, 2477 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3658 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:36,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3658 Valid, 3258 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:37,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:37,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3795045045045045) internal successors, (1225), 909 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:37,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1225 transitions. [2022-01-10 01:40:37,110 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1225 transitions. Word has length 96 [2022-01-10 01:40:37,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:37,110 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1225 transitions. [2022-01-10 01:40:37,110 INFO L471 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) [2022-01-10 01:40:37,111 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1225 transitions. [2022-01-10 01:40:37,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:37,111 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:37,112 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:37,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 01:40:37,112 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:37,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:37,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1385819023, now seen corresponding path program 1 times [2022-01-10 01:40:37,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:37,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623937510] [2022-01-10 01:40:37,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:37,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:37,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:37,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623937510] [2022-01-10 01:40:37,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623937510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:37,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:37,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:37,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666160312] [2022-01-10 01:40:37,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:37,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:37,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:37,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:37,190 INFO L87 Difference]: Start difference. First operand 910 states and 1225 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) [2022-01-10 01:40:38,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:38,495 INFO L93 Difference]: Finished difference Result 1883 states and 2603 transitions. [2022-01-10 01:40:38,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:38,496 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 [2022-01-10 01:40:38,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:38,498 INFO L225 Difference]: With dead ends: 1883 [2022-01-10 01:40:38,498 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:38,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:38,500 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 4162 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 2429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:38,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4162 Valid, 3135 Invalid, 2429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 2364 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:38,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:38,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3783783783783783) internal successors, (1224), 909 states have internal predecessors, (1224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:38,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1224 transitions. [2022-01-10 01:40:38,646 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1224 transitions. Word has length 96 [2022-01-10 01:40:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:38,646 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1224 transitions. [2022-01-10 01:40:38,646 INFO L471 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) [2022-01-10 01:40:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1224 transitions. [2022-01-10 01:40:38,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:38,647 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:38,647 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:38,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 01:40:38,648 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:38,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:38,648 INFO L85 PathProgramCache]: Analyzing trace with hash -236760265, now seen corresponding path program 1 times [2022-01-10 01:40:38,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:38,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811579713] [2022-01-10 01:40:38,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:38,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:38,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:38,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:38,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811579713] [2022-01-10 01:40:38,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811579713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:38,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:38,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:38,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839831834] [2022-01-10 01:40:38,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:38,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:38,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:38,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:38,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:38,733 INFO L87 Difference]: Start difference. First operand 910 states and 1224 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) [2022-01-10 01:40:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:40,009 INFO L93 Difference]: Finished difference Result 1842 states and 2541 transitions. [2022-01-10 01:40:40,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:40,009 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 [2022-01-10 01:40:40,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:40,012 INFO L225 Difference]: With dead ends: 1842 [2022-01-10 01:40:40,013 INFO L226 Difference]: Without dead ends: 1686 [2022-01-10 01:40:40,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:40,014 INFO L933 BasicCegarLoop]: 660 mSDtfsCounter, 3750 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3750 SdHoareTripleChecker+Valid, 3397 SdHoareTripleChecker+Invalid, 2666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:40,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3750 Valid, 3397 Invalid, 2666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2022-01-10 01:40:40,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 910. [2022-01-10 01:40:40,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3772522522522523) internal successors, (1223), 909 states have internal predecessors, (1223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:40,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1223 transitions. [2022-01-10 01:40:40,172 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1223 transitions. Word has length 96 [2022-01-10 01:40:40,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:40,173 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1223 transitions. [2022-01-10 01:40:40,173 INFO L471 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) [2022-01-10 01:40:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1223 transitions. [2022-01-10 01:40:40,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:40,174 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:40,174 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:40,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 01:40:40,174 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:40,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:40,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1688520017, now seen corresponding path program 1 times [2022-01-10 01:40:40,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:40,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130757702] [2022-01-10 01:40:40,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:40,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:40,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:40,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130757702] [2022-01-10 01:40:40,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130757702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:40,243 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:40,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:40,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203031931] [2022-01-10 01:40:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:40,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:40,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:40,244 INFO L87 Difference]: Start difference. First operand 910 states and 1223 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) [2022-01-10 01:40:41,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:41,539 INFO L93 Difference]: Finished difference Result 1786 states and 2445 transitions. [2022-01-10 01:40:41,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:41,539 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 [2022-01-10 01:40:41,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:41,542 INFO L225 Difference]: With dead ends: 1786 [2022-01-10 01:40:41,542 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:41,543 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:41,543 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 3327 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 179 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3327 SdHoareTripleChecker+Valid, 2300 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 179 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:41,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3327 Valid, 2300 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [179 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:41,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:41,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:41,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3761261261261262) internal successors, (1222), 909 states have internal predecessors, (1222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:41,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1222 transitions. [2022-01-10 01:40:41,706 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1222 transitions. Word has length 96 [2022-01-10 01:40:41,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:41,707 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1222 transitions. [2022-01-10 01:40:41,707 INFO L471 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) [2022-01-10 01:40:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1222 transitions. [2022-01-10 01:40:41,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 01:40:41,707 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:41,708 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:41,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 01:40:41,708 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:41,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:41,709 INFO L85 PathProgramCache]: Analyzing trace with hash -278477607, now seen corresponding path program 1 times [2022-01-10 01:40:41,709 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:41,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609370149] [2022-01-10 01:40:41,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:41,710 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:41,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:41,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:41,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609370149] [2022-01-10 01:40:41,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609370149] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:41,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:41,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:41,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056922875] [2022-01-10 01:40:41,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:41,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:41,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:41,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:41,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:41,797 INFO L87 Difference]: Start difference. First operand 910 states and 1222 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) [2022-01-10 01:40:43,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:43,103 INFO L93 Difference]: Finished difference Result 1878 states and 2594 transitions. [2022-01-10 01:40:43,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:43,103 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 [2022-01-10 01:40:43,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:43,106 INFO L225 Difference]: With dead ends: 1878 [2022-01-10 01:40:43,106 INFO L226 Difference]: Without dead ends: 1710 [2022-01-10 01:40:43,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-01-10 01:40:43,109 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 3929 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3929 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:43,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3929 Valid, 3061 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1710 states. [2022-01-10 01:40:43,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1710 to 910. [2022-01-10 01:40:43,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.375) internal successors, (1221), 909 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:43,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1221 transitions. [2022-01-10 01:40:43,276 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1221 transitions. Word has length 96 [2022-01-10 01:40:43,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:43,276 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1221 transitions. [2022-01-10 01:40:43,276 INFO L471 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) [2022-01-10 01:40:43,276 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1221 transitions. [2022-01-10 01:40:43,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:43,277 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:43,277 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:43,277 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-10 01:40:43,277 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:43,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:43,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1799558176, now seen corresponding path program 1 times [2022-01-10 01:40:43,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:43,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42560288] [2022-01-10 01:40:43,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:43,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:43,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:43,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:43,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42560288] [2022-01-10 01:40:43,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42560288] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:43,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:43,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:43,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888192168] [2022-01-10 01:40:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:43,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:43,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:43,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:43,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:43,366 INFO L87 Difference]: Start difference. First operand 910 states and 1221 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:44,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:44,808 INFO L93 Difference]: Finished difference Result 1794 states and 2451 transitions. [2022-01-10 01:40:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:44,808 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 [2022-01-10 01:40:44,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:44,810 INFO L225 Difference]: With dead ends: 1794 [2022-01-10 01:40:44,810 INFO L226 Difference]: Without dead ends: 1638 [2022-01-10 01:40:44,811 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:44,811 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 3820 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 2258 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3820 SdHoareTripleChecker+Valid, 2880 SdHoareTripleChecker+Invalid, 2444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:44,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3820 Valid, 2880 Invalid, 2444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2258 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:44,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2022-01-10 01:40:44,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 910. [2022-01-10 01:40:44,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 888 states have (on average 1.3727477477477477) internal successors, (1219), 909 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1219 transitions. [2022-01-10 01:40:44,954 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1219 transitions. Word has length 98 [2022-01-10 01:40:44,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:44,954 INFO L470 AbstractCegarLoop]: Abstraction has 910 states and 1219 transitions. [2022-01-10 01:40:44,954 INFO L471 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) [2022-01-10 01:40:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1219 transitions. [2022-01-10 01:40:44,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:44,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:44,955 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:44,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-10 01:40:44,955 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:44,956 INFO L85 PathProgramCache]: Analyzing trace with hash 112638926, now seen corresponding path program 1 times [2022-01-10 01:40:44,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:44,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346240040] [2022-01-10 01:40:44,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:44,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:45,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:45,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346240040] [2022-01-10 01:40:45,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346240040] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:45,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:45,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:40:45,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627192133] [2022-01-10 01:40:45,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:45,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:40:45,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:45,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:40:45,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:40:45,108 INFO L87 Difference]: Start difference. First operand 910 states and 1219 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:47,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:47,986 INFO L93 Difference]: Finished difference Result 2786 states and 3903 transitions. [2022-01-10 01:40:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:40:47,986 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:40:47,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:47,989 INFO L225 Difference]: With dead ends: 2786 [2022-01-10 01:40:47,990 INFO L226 Difference]: Without dead ends: 2614 [2022-01-10 01:40:47,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:40:47,991 INFO L933 BasicCegarLoop]: 769 mSDtfsCounter, 6954 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 3250 mSolverCounterSat, 701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6954 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 3951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 701 IncrementalHoareTripleChecker+Valid, 3250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:47,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6954 Valid, 4103 Invalid, 3951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [701 Valid, 3250 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 01:40:47,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2614 states. [2022-01-10 01:40:48,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2614 to 918. [2022-01-10 01:40:48,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3694196428571428) internal successors, (1227), 917 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:48,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1227 transitions. [2022-01-10 01:40:48,160 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1227 transitions. Word has length 98 [2022-01-10 01:40:48,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:48,160 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1227 transitions. [2022-01-10 01:40:48,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:48,160 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1227 transitions. [2022-01-10 01:40:48,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:48,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:48,161 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:48,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-10 01:40:48,162 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:48,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:48,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1288712520, now seen corresponding path program 1 times [2022-01-10 01:40:48,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:48,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100198905] [2022-01-10 01:40:48,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:48,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:48,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:48,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:48,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100198905] [2022-01-10 01:40:48,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100198905] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:48,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:48,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:48,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813171336] [2022-01-10 01:40:48,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:48,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:48,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:48,271 INFO L87 Difference]: Start difference. First operand 918 states and 1227 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:49,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:49,787 INFO L93 Difference]: Finished difference Result 1798 states and 2452 transitions. [2022-01-10 01:40:49,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:49,787 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 [2022-01-10 01:40:49,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:49,789 INFO L225 Difference]: With dead ends: 1798 [2022-01-10 01:40:49,789 INFO L226 Difference]: Without dead ends: 1646 [2022-01-10 01:40:49,790 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:49,790 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 3719 mSDsluCounter, 2475 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:49,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3719 Valid, 3082 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:49,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-01-10 01:40:49,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 918. [2022-01-10 01:40:49,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 918 states, 896 states have (on average 1.3671875) internal successors, (1225), 917 states have internal predecessors, (1225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:49,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 918 states to 918 states and 1225 transitions. [2022-01-10 01:40:49,957 INFO L78 Accepts]: Start accepts. Automaton has 918 states and 1225 transitions. Word has length 98 [2022-01-10 01:40:49,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:49,957 INFO L470 AbstractCegarLoop]: Abstraction has 918 states and 1225 transitions. [2022-01-10 01:40:49,957 INFO L471 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) [2022-01-10 01:40:49,958 INFO L276 IsEmpty]: Start isEmpty. Operand 918 states and 1225 transitions. [2022-01-10 01:40:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:49,959 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:49,959 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:49,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-10 01:40:49,959 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:49,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1740272545, now seen corresponding path program 1 times [2022-01-10 01:40:49,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:49,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472076044] [2022-01-10 01:40:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:49,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:50,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:50,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:50,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472076044] [2022-01-10 01:40:50,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472076044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:50,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:50,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:40:50,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471680605] [2022-01-10 01:40:50,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:50,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:40:50,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:50,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:40:50,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:40:50,114 INFO L87 Difference]: Start difference. First operand 918 states and 1225 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:52,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:52,750 INFO L93 Difference]: Finished difference Result 2554 states and 3544 transitions. [2022-01-10 01:40:52,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:40:52,750 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:40:52,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:52,752 INFO L225 Difference]: With dead ends: 2554 [2022-01-10 01:40:52,752 INFO L226 Difference]: Without dead ends: 2398 [2022-01-10 01:40:52,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:40:52,753 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 5981 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5981 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 3575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:52,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5981 Valid, 3299 Invalid, 3575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-01-10 01:40:52,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2398 states. [2022-01-10 01:40:52,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2398 to 926. [2022-01-10 01:40:52,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.363938053097345) internal successors, (1233), 925 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:52,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1233 transitions. [2022-01-10 01:40:52,954 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1233 transitions. Word has length 98 [2022-01-10 01:40:52,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:52,954 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1233 transitions. [2022-01-10 01:40:52,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:52,954 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1233 transitions. [2022-01-10 01:40:52,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:52,955 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:52,955 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:52,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-10 01:40:52,956 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:52,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:52,956 INFO L85 PathProgramCache]: Analyzing trace with hash -285632464, now seen corresponding path program 1 times [2022-01-10 01:40:52,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:52,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658018042] [2022-01-10 01:40:52,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:52,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:53,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:53,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:53,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658018042] [2022-01-10 01:40:53,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658018042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:53,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:53,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:53,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627638402] [2022-01-10 01:40:53,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:53,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:53,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:53,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:53,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:53,033 INFO L87 Difference]: Start difference. First operand 926 states and 1233 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) [2022-01-10 01:40:54,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:54,513 INFO L93 Difference]: Finished difference Result 1938 states and 2658 transitions. [2022-01-10 01:40:54,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:54,514 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 [2022-01-10 01:40:54,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:54,516 INFO L225 Difference]: With dead ends: 1938 [2022-01-10 01:40:54,516 INFO L226 Difference]: Without dead ends: 1726 [2022-01-10 01:40:54,517 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:54,517 INFO L933 BasicCegarLoop]: 790 mSDtfsCounter, 3112 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2323 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3112 SdHoareTripleChecker+Valid, 3101 SdHoareTripleChecker+Invalid, 2373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:54,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3112 Valid, 3101 Invalid, 2373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2323 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 01:40:54,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1726 states. [2022-01-10 01:40:54,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1726 to 926. [2022-01-10 01:40:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3617256637168142) internal successors, (1231), 925 states have internal predecessors, (1231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:54,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1231 transitions. [2022-01-10 01:40:54,733 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1231 transitions. Word has length 98 [2022-01-10 01:40:54,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:54,734 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1231 transitions. [2022-01-10 01:40:54,734 INFO L471 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) [2022-01-10 01:40:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1231 transitions. [2022-01-10 01:40:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:54,735 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:54,735 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:54,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-10 01:40:54,735 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:54,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash 131410264, now seen corresponding path program 1 times [2022-01-10 01:40:54,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:54,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909284223] [2022-01-10 01:40:54,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:54,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:54,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:54,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909284223] [2022-01-10 01:40:54,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909284223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:54,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:54,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:54,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635864820] [2022-01-10 01:40:54,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:54,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:54,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:54,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:54,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:54,822 INFO L87 Difference]: Start difference. First operand 926 states and 1231 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) [2022-01-10 01:40:56,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:56,438 INFO L93 Difference]: Finished difference Result 1802 states and 2451 transitions. [2022-01-10 01:40:56,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:56,438 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 [2022-01-10 01:40:56,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:56,440 INFO L225 Difference]: With dead ends: 1802 [2022-01-10 01:40:56,440 INFO L226 Difference]: Without dead ends: 1646 [2022-01-10 01:40:56,441 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:40:56,441 INFO L933 BasicCegarLoop]: 553 mSDtfsCounter, 3812 mSDsluCounter, 2311 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3812 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 2422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:56,441 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3812 Valid, 2864 Invalid, 2422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 01:40:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1646 states. [2022-01-10 01:40:56,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 926. [2022-01-10 01:40:56,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3595132743362832) internal successors, (1229), 925 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:56,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1229 transitions. [2022-01-10 01:40:56,641 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1229 transitions. Word has length 98 [2022-01-10 01:40:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:56,641 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1229 transitions. [2022-01-10 01:40:56,641 INFO L471 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) [2022-01-10 01:40:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1229 transitions. [2022-01-10 01:40:56,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:56,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:56,642 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:56,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-10 01:40:56,642 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:56,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:56,643 INFO L85 PathProgramCache]: Analyzing trace with hash 2043607366, now seen corresponding path program 1 times [2022-01-10 01:40:56,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:56,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706361210] [2022-01-10 01:40:56,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:56,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:56,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:56,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706361210] [2022-01-10 01:40:56,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706361210] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:56,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:56,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:40:56,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110049556] [2022-01-10 01:40:56,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:56,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:40:56,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:56,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:40:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:40:56,730 INFO L87 Difference]: Start difference. First operand 926 states and 1229 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) [2022-01-10 01:40:58,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:40:58,416 INFO L93 Difference]: Finished difference Result 1866 states and 2553 transitions. [2022-01-10 01:40:58,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:40:58,417 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 [2022-01-10 01:40:58,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:40:58,419 INFO L225 Difference]: With dead ends: 1866 [2022-01-10 01:40:58,419 INFO L226 Difference]: Without dead ends: 1694 [2022-01-10 01:40:58,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 01:40:58,420 INFO L933 BasicCegarLoop]: 748 mSDtfsCounter, 3577 mSDsluCounter, 2988 mSDsCounter, 0 mSdLazyCounter, 2792 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 2886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:40:58,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3577 Valid, 3736 Invalid, 2886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 2792 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:40:58,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-01-10 01:40:58,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 926. [2022-01-10 01:40:58,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 904 states have (on average 1.3573008849557522) internal successors, (1227), 925 states have internal predecessors, (1227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:40:58,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1227 transitions. [2022-01-10 01:40:58,640 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1227 transitions. Word has length 98 [2022-01-10 01:40:58,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:40:58,640 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1227 transitions. [2022-01-10 01:40:58,640 INFO L471 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) [2022-01-10 01:40:58,640 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1227 transitions. [2022-01-10 01:40:58,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:40:58,641 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:40:58,641 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:40:58,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-10 01:40:58,642 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:40:58,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:40:58,653 INFO L85 PathProgramCache]: Analyzing trace with hash 530098373, now seen corresponding path program 1 times [2022-01-10 01:40:58,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:40:58,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842908987] [2022-01-10 01:40:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:40:58,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:40:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:40:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:40:58,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:40:58,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842908987] [2022-01-10 01:40:58,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842908987] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:40:58,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:40:58,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:40:58,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461480712] [2022-01-10 01:40:58,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:40:58,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:40:58,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:40:58,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:40:58,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:40:58,788 INFO L87 Difference]: Start difference. First operand 926 states and 1227 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:41:01,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:41:01,242 INFO L93 Difference]: Finished difference Result 2782 states and 3883 transitions. [2022-01-10 01:41:01,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 01:41:01,243 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2022-01-10 01:41:01,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:41:01,245 INFO L225 Difference]: With dead ends: 2782 [2022-01-10 01:41:01,245 INFO L226 Difference]: Without dead ends: 2616 [2022-01-10 01:41:01,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-01-10 01:41:01,246 INFO L933 BasicCegarLoop]: 782 mSDtfsCounter, 7833 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7833 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 3269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:41:01,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7833 Valid, 3321 Invalid, 3269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:41:01,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-01-10 01:41:01,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 934. [2022-01-10 01:41:01,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3541666666666667) internal successors, (1235), 933 states have internal predecessors, (1235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:41:01,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1235 transitions. [2022-01-10 01:41:01,463 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1235 transitions. Word has length 98 [2022-01-10 01:41:01,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:41:01,463 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1235 transitions. [2022-01-10 01:41:01,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:41:01,463 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1235 transitions. [2022-01-10 01:41:01,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:41:01,464 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:41:01,464 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:41:01,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-10 01:41:01,466 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:41:01,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:41:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1144212400, now seen corresponding path program 1 times [2022-01-10 01:41:01,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:41:01,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867577830] [2022-01-10 01:41:01,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:41:01,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:41:01,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:41:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:41:01,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:41:01,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867577830] [2022-01-10 01:41:01,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867577830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:41:01,627 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:41:01,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 01:41:01,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379232269] [2022-01-10 01:41:01,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:41:01,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 01:41:01,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:41:01,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 01:41:01,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 01:41:01,630 INFO L87 Difference]: Start difference. First operand 934 states and 1235 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) [2022-01-10 01:41:03,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 01:41:03,281 INFO L93 Difference]: Finished difference Result 1806 states and 2450 transitions. [2022-01-10 01:41:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 01:41:03,282 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 [2022-01-10 01:41:03,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 01:41:03,284 INFO L225 Difference]: With dead ends: 1806 [2022-01-10 01:41:03,284 INFO L226 Difference]: Without dead ends: 1654 [2022-01-10 01:41:03,284 INFO L932 BasicCegarLoop]: 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 [2022-01-10 01:41:03,284 INFO L933 BasicCegarLoop]: 621 mSDtfsCounter, 3683 mSDsluCounter, 2517 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 01:41:03,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3683 Valid, 3138 Invalid, 2614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 01:41:03,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2022-01-10 01:41:03,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 934. [2022-01-10 01:41:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 912 states have (on average 1.3519736842105263) internal successors, (1233), 933 states have internal predecessors, (1233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 01:41:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1233 transitions. [2022-01-10 01:41:03,495 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1233 transitions. Word has length 98 [2022-01-10 01:41:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 01:41:03,495 INFO L470 AbstractCegarLoop]: Abstraction has 934 states and 1233 transitions. [2022-01-10 01:41:03,495 INFO L471 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) [2022-01-10 01:41:03,495 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1233 transitions. [2022-01-10 01:41:03,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 01:41:03,496 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 01:41:03,496 INFO L514 BasicCegarLoop]: 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] [2022-01-10 01:41:03,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-10 01:41:03,496 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 19 more)] === [2022-01-10 01:41:03,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 01:41:03,496 INFO L85 PathProgramCache]: Analyzing trace with hash -495518324, now seen corresponding path program 1 times [2022-01-10 01:41:03,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 01:41:03,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477919277] [2022-01-10 01:41:03,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 01:41:03,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 01:41:03,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 01:41:03,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 01:41:03,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 01:41:03,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477919277] [2022-01-10 01:41:03,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477919277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 01:41:03,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 01:41:03,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-10 01:41:03,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754355850] [2022-01-10 01:41:03,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 01:41:03,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 01:41:03,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 01:41:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 01:41:03,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-01-10 01:41:03,641 INFO L87 Difference]: Start difference. First operand 934 states and 1233 transitions. Second operand has 12 states, 12 states have (on average 8.166666666666666) internal successors, (98), 11 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)