/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:47:27,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:47:27,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:47:27,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:47:27,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:47:27,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:47:27,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:47:27,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:47:27,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:47:27,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:47:27,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:47:27,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:47:27,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:47:27,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:47:27,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:47:27,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:47:27,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:47:27,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:47:27,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:47:27,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:47:27,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:47:27,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:47:27,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:47:27,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:47:27,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:47:27,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:47:27,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:47:27,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:47:27,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:47:27,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:47:27,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:47:27,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:47:27,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:47:28,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:47:28,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:47:28,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:47:28,009 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:47:28,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:47:28,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:47:28,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:47:28,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:47:28,084 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:47:28,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:47:28,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:47:28,085 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:47:28,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:47:28,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:47:28,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:47:28,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:47:28,086 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:47:28,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:47:28,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:47:28,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:47:28,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:47:28,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:47:28,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:47:28,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:47:28,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:47:28,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:47:28,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:47:28,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:47:28,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:47:28,089 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:47:28,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:47:28,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:47:28,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:47:28,486 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:47:28,487 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:47:28,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:47:28,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61761d21b/5800ff5a189b46089aa1cf94776138db/FLAG42fc87c22 [2020-12-22 08:47:29,566 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:47:29,567 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:47:29,598 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61761d21b/5800ff5a189b46089aa1cf94776138db/FLAG42fc87c22 [2020-12-22 08:47:29,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61761d21b/5800ff5a189b46089aa1cf94776138db [2020-12-22 08:47:29,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:47:29,690 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:47:29,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:47:29,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:47:29,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:47:29,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:47:29" (1/1) ... [2020-12-22 08:47:29,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faa9935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:29, skipping insertion in model container [2020-12-22 08:47:29,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:47:29" (1/1) ... [2020-12-22 08:47:29,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:47:29,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:47:30,448 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[32788,32801] [2020-12-22 08:47:30,581 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47153,47166] [2020-12-22 08:47:30,627 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54324,54337] [2020-12-22 08:47:30,642 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57883,57896] [2020-12-22 08:47:30,658 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61243,61256] [2020-12-22 08:47:30,720 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76530,76543] [2020-12-22 08:47:30,748 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83696,83709] [2020-12-22 08:47:30,763 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87250,87263] [2020-12-22 08:47:30,776 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90605,90618] [2020-12-22 08:47:30,793 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94738,94751] [2020-12-22 08:47:30,806 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98159,98172] [2020-12-22 08:47:30,820 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101713,101726] [2020-12-22 08:47:30,833 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105068,105081] [2020-12-22 08:47:30,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108822,108835] [2020-12-22 08:47:30,860 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112192,112205] [2020-12-22 08:47:30,874 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115727,115740] [2020-12-22 08:47:30,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:47:30,928 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:47:31,067 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[32788,32801] [2020-12-22 08:47:31,109 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47153,47166] [2020-12-22 08:47:31,130 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54324,54337] [2020-12-22 08:47:31,142 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57883,57896] [2020-12-22 08:47:31,153 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61243,61256] [2020-12-22 08:47:31,198 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76530,76543] [2020-12-22 08:47:31,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83696,83709] [2020-12-22 08:47:31,234 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87250,87263] [2020-12-22 08:47:31,245 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90605,90618] [2020-12-22 08:47:31,258 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94738,94751] [2020-12-22 08:47:31,268 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98159,98172] [2020-12-22 08:47:31,280 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101713,101726] [2020-12-22 08:47:31,291 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105068,105081] [2020-12-22 08:47:31,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108822,108835] [2020-12-22 08:47:31,321 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112192,112205] [2020-12-22 08:47:31,371 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115727,115740] [2020-12-22 08:47:31,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:47:31,429 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:47:31,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31 WrapperNode [2020-12-22 08:47:31,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:47:31,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:47:31,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:47:31,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:47:31,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:47:31,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:47:31,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:47:31,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:47:31,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... [2020-12-22 08:47:31,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:47:31,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:47:31,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:47:31,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:47:31,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:47:31,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:47:31,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:47:31,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:47:31,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:47:35,769 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:47:35,769 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:47:35,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:47:35 BoogieIcfgContainer [2020-12-22 08:47:35,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:47:35,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:47:35,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:47:35,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:47:35,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:47:29" (1/3) ... [2020-12-22 08:47:35,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519595d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:47:35, skipping insertion in model container [2020-12-22 08:47:35,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:47:31" (2/3) ... [2020-12-22 08:47:35,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519595d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:47:35, skipping insertion in model container [2020-12-22 08:47:35,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:47:35" (3/3) ... [2020-12-22 08:47:35,790 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:47:35,799 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:47:35,807 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-22 08:47:35,836 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-22 08:47:35,898 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:47:35,898 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:47:35,898 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:47:35,899 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:47:35,899 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:47:35,899 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:47:35,899 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:47:35,899 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:47:35,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states. [2020-12-22 08:47:36,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 08:47:36,002 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:36,003 INFO L422 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] [2020-12-22 08:47:36,004 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:36,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:36,012 INFO L82 PathProgramCache]: Analyzing trace with hash -659325864, now seen corresponding path program 1 times [2020-12-22 08:47:36,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:36,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228506728] [2020-12-22 08:47:36,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:36,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:36,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228506728] [2020-12-22 08:47:36,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:36,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:47:36,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661314372] [2020-12-22 08:47:36,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:47:36,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:36,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:47:36,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:47:36,679 INFO L87 Difference]: Start difference. First operand 1111 states. Second operand 6 states. [2020-12-22 08:47:38,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:38,302 INFO L93 Difference]: Finished difference Result 1817 states and 3169 transitions. [2020-12-22 08:47:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:47:38,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 08:47:38,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:38,335 INFO L225 Difference]: With dead ends: 1817 [2020-12-22 08:47:38,335 INFO L226 Difference]: Without dead ends: 1239 [2020-12-22 08:47:38,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:47:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2020-12-22 08:47:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1135. [2020-12-22 08:47:38,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1135 states. [2020-12-22 08:47:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1518 transitions. [2020-12-22 08:47:38,535 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1518 transitions. Word has length 72 [2020-12-22 08:47:38,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:38,537 INFO L481 AbstractCegarLoop]: Abstraction has 1135 states and 1518 transitions. [2020-12-22 08:47:38,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:47:38,537 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1518 transitions. [2020-12-22 08:47:38,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 08:47:38,545 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:38,546 INFO L422 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] [2020-12-22 08:47:38,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:47:38,547 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:38,551 INFO L82 PathProgramCache]: Analyzing trace with hash -954340830, now seen corresponding path program 1 times [2020-12-22 08:47:38,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:38,552 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076650335] [2020-12-22 08:47:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:38,926 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076650335] [2020-12-22 08:47:38,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:38,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:47:38,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136433361] [2020-12-22 08:47:38,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:47:38,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:38,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:47:38,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:47:38,935 INFO L87 Difference]: Start difference. First operand 1135 states and 1518 transitions. Second operand 6 states. [2020-12-22 08:47:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:39,831 INFO L93 Difference]: Finished difference Result 1790 states and 2396 transitions. [2020-12-22 08:47:39,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:47:39,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 08:47:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:39,840 INFO L225 Difference]: With dead ends: 1790 [2020-12-22 08:47:39,841 INFO L226 Difference]: Without dead ends: 1296 [2020-12-22 08:47:39,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:47:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1296 states. [2020-12-22 08:47:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1296 to 1238. [2020-12-22 08:47:39,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1238 states. [2020-12-22 08:47:39,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1685 transitions. [2020-12-22 08:47:39,983 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1685 transitions. Word has length 72 [2020-12-22 08:47:39,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:39,984 INFO L481 AbstractCegarLoop]: Abstraction has 1238 states and 1685 transitions. [2020-12-22 08:47:39,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:47:39,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1685 transitions. [2020-12-22 08:47:39,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 08:47:39,993 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:39,993 INFO L422 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] [2020-12-22 08:47:39,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:47:39,995 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:40,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:40,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1430025351, now seen corresponding path program 1 times [2020-12-22 08:47:40,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:40,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883356290] [2020-12-22 08:47:40,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:40,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:40,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883356290] [2020-12-22 08:47:40,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:40,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:47:40,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891025458] [2020-12-22 08:47:40,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:47:40,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:40,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:47:40,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:47:40,206 INFO L87 Difference]: Start difference. First operand 1238 states and 1685 transitions. Second operand 6 states. [2020-12-22 08:47:40,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:40,839 INFO L93 Difference]: Finished difference Result 1980 states and 2723 transitions. [2020-12-22 08:47:40,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:47:40,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-12-22 08:47:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:40,853 INFO L225 Difference]: With dead ends: 1980 [2020-12-22 08:47:40,853 INFO L226 Difference]: Without dead ends: 1312 [2020-12-22 08:47:40,856 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:47:40,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-12-22 08:47:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1252. [2020-12-22 08:47:40,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1252 states. [2020-12-22 08:47:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1748 transitions. [2020-12-22 08:47:40,928 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1748 transitions. Word has length 72 [2020-12-22 08:47:40,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:40,928 INFO L481 AbstractCegarLoop]: Abstraction has 1252 states and 1748 transitions. [2020-12-22 08:47:40,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:47:40,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1748 transitions. [2020-12-22 08:47:40,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-12-22 08:47:40,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:40,931 INFO L422 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] [2020-12-22 08:47:40,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:47:40,932 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:40,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:40,933 INFO L82 PathProgramCache]: Analyzing trace with hash 463143434, now seen corresponding path program 1 times [2020-12-22 08:47:40,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:40,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578806448] [2020-12-22 08:47:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:40,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:41,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:41,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578806448] [2020-12-22 08:47:41,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:41,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:47:41,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141220668] [2020-12-22 08:47:41,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:47:41,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:41,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:47:41,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:47:41,024 INFO L87 Difference]: Start difference. First operand 1252 states and 1748 transitions. Second operand 5 states. [2020-12-22 08:47:41,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:41,472 INFO L93 Difference]: Finished difference Result 1897 states and 2692 transitions. [2020-12-22 08:47:41,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:47:41,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-12-22 08:47:41,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:41,479 INFO L225 Difference]: With dead ends: 1897 [2020-12-22 08:47:41,479 INFO L226 Difference]: Without dead ends: 1112 [2020-12-22 08:47:41,481 INFO L677 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 [2020-12-22 08:47:41,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1112 states. [2020-12-22 08:47:41,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1112 to 1112. [2020-12-22 08:47:41,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1112 states. [2020-12-22 08:47:41,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1112 states to 1112 states and 1556 transitions. [2020-12-22 08:47:41,553 INFO L78 Accepts]: Start accepts. Automaton has 1112 states and 1556 transitions. Word has length 73 [2020-12-22 08:47:41,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:41,554 INFO L481 AbstractCegarLoop]: Abstraction has 1112 states and 1556 transitions. [2020-12-22 08:47:41,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:47:41,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1112 states and 1556 transitions. [2020-12-22 08:47:41,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 08:47:41,556 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:41,556 INFO L422 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] [2020-12-22 08:47:41,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:47:41,556 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:41,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:41,557 INFO L82 PathProgramCache]: Analyzing trace with hash 148085284, now seen corresponding path program 1 times [2020-12-22 08:47:41,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:41,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333618409] [2020-12-22 08:47:41,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:41,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:41,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333618409] [2020-12-22 08:47:41,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:41,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:47:41,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973467532] [2020-12-22 08:47:41,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:47:41,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:41,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:47:41,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:47:41,647 INFO L87 Difference]: Start difference. First operand 1112 states and 1556 transitions. Second operand 5 states. [2020-12-22 08:47:42,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:42,019 INFO L93 Difference]: Finished difference Result 1841 states and 2607 transitions. [2020-12-22 08:47:42,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:47:42,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 74 [2020-12-22 08:47:42,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:42,026 INFO L225 Difference]: With dead ends: 1841 [2020-12-22 08:47:42,026 INFO L226 Difference]: Without dead ends: 1060 [2020-12-22 08:47:42,028 INFO L677 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 [2020-12-22 08:47:42,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-12-22 08:47:42,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 1060. [2020-12-22 08:47:42,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-12-22 08:47:42,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1483 transitions. [2020-12-22 08:47:42,122 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1483 transitions. Word has length 74 [2020-12-22 08:47:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:42,122 INFO L481 AbstractCegarLoop]: Abstraction has 1060 states and 1483 transitions. [2020-12-22 08:47:42,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:47:42,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1483 transitions. [2020-12-22 08:47:42,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:47:42,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:42,124 INFO L422 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] [2020-12-22 08:47:42,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:47:42,125 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:42,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:42,126 INFO L82 PathProgramCache]: Analyzing trace with hash 892076084, now seen corresponding path program 1 times [2020-12-22 08:47:42,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:42,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621955645] [2020-12-22 08:47:42,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:42,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:42,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621955645] [2020-12-22 08:47:42,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:42,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:47:42,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093279905] [2020-12-22 08:47:42,368 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:47:42,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:42,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:47:42,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:47:42,371 INFO L87 Difference]: Start difference. First operand 1060 states and 1483 transitions. Second operand 8 states. [2020-12-22 08:47:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:43,049 INFO L93 Difference]: Finished difference Result 1906 states and 2694 transitions. [2020-12-22 08:47:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:47:43,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-12-22 08:47:43,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:43,057 INFO L225 Difference]: With dead ends: 1906 [2020-12-22 08:47:43,057 INFO L226 Difference]: Without dead ends: 1223 [2020-12-22 08:47:43,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:47:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-12-22 08:47:43,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 921. [2020-12-22 08:47:43,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1287 transitions. [2020-12-22 08:47:43,182 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1287 transitions. Word has length 75 [2020-12-22 08:47:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:43,183 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1287 transitions. [2020-12-22 08:47:43,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:47:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1287 transitions. [2020-12-22 08:47:43,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:47:43,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:43,191 INFO L422 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] [2020-12-22 08:47:43,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:47:43,191 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:43,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:43,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1107897332, now seen corresponding path program 1 times [2020-12-22 08:47:43,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:43,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557785346] [2020-12-22 08:47:43,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:43,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:43,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557785346] [2020-12-22 08:47:43,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:43,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:43,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501203450] [2020-12-22 08:47:43,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:43,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:43,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:43,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:43,435 INFO L87 Difference]: Start difference. First operand 921 states and 1287 transitions. Second operand 9 states. [2020-12-22 08:47:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:44,717 INFO L93 Difference]: Finished difference Result 3150 states and 4604 transitions. [2020-12-22 08:47:44,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:44,718 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-12-22 08:47:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:44,731 INFO L225 Difference]: With dead ends: 3150 [2020-12-22 08:47:44,731 INFO L226 Difference]: Without dead ends: 2629 [2020-12-22 08:47:44,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:47:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2020-12-22 08:47:44,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 921. [2020-12-22 08:47:44,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:44,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1286 transitions. [2020-12-22 08:47:44,838 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1286 transitions. Word has length 75 [2020-12-22 08:47:44,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:44,838 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1286 transitions. [2020-12-22 08:47:44,839 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:44,839 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1286 transitions. [2020-12-22 08:47:44,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-12-22 08:47:44,840 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:44,840 INFO L422 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] [2020-12-22 08:47:44,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:47:44,841 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:44,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:44,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1055548212, now seen corresponding path program 1 times [2020-12-22 08:47:44,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:44,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491619909] [2020-12-22 08:47:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:45,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491619909] [2020-12-22 08:47:45,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:45,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:45,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271250652] [2020-12-22 08:47:45,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:45,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:45,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:45,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:45,025 INFO L87 Difference]: Start difference. First operand 921 states and 1286 transitions. Second operand 9 states. [2020-12-22 08:47:46,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:46,193 INFO L93 Difference]: Finished difference Result 2249 states and 3282 transitions. [2020-12-22 08:47:46,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:46,193 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-12-22 08:47:46,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:46,201 INFO L225 Difference]: With dead ends: 2249 [2020-12-22 08:47:46,202 INFO L226 Difference]: Without dead ends: 1665 [2020-12-22 08:47:46,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:47:46,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2020-12-22 08:47:46,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 921. [2020-12-22 08:47:46,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:46,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1285 transitions. [2020-12-22 08:47:46,303 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1285 transitions. Word has length 75 [2020-12-22 08:47:46,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:46,304 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1285 transitions. [2020-12-22 08:47:46,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:46,304 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1285 transitions. [2020-12-22 08:47:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:46,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:46,306 INFO L422 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] [2020-12-22 08:47:46,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:47:46,306 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:46,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:46,307 INFO L82 PathProgramCache]: Analyzing trace with hash -101200913, now seen corresponding path program 1 times [2020-12-22 08:47:46,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:46,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424026354] [2020-12-22 08:47:46,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:46,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:46,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424026354] [2020-12-22 08:47:46,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:46,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:46,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846738878] [2020-12-22 08:47:46,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:46,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:46,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:46,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:46,515 INFO L87 Difference]: Start difference. First operand 921 states and 1285 transitions. Second operand 9 states. [2020-12-22 08:47:47,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:47,985 INFO L93 Difference]: Finished difference Result 3149 states and 4596 transitions. [2020-12-22 08:47:47,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:47,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:47:47,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:47,999 INFO L225 Difference]: With dead ends: 3149 [2020-12-22 08:47:47,999 INFO L226 Difference]: Without dead ends: 2629 [2020-12-22 08:47:48,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:47:48,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2629 states. [2020-12-22 08:47:48,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2629 to 921. [2020-12-22 08:47:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:48,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1284 transitions. [2020-12-22 08:47:48,188 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1284 transitions. Word has length 77 [2020-12-22 08:47:48,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:48,189 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1284 transitions. [2020-12-22 08:47:48,189 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:48,189 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1284 transitions. [2020-12-22 08:47:48,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:48,191 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:48,191 INFO L422 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] [2020-12-22 08:47:48,191 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:47:48,191 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:48,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:48,192 INFO L82 PathProgramCache]: Analyzing trace with hash 798728465, now seen corresponding path program 1 times [2020-12-22 08:47:48,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:48,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636781281] [2020-12-22 08:47:48,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:48,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:48,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636781281] [2020-12-22 08:47:48,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:48,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:48,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666169117] [2020-12-22 08:47:48,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:48,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:48,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:48,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:48,372 INFO L87 Difference]: Start difference. First operand 921 states and 1284 transitions. Second operand 9 states. [2020-12-22 08:47:49,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:49,691 INFO L93 Difference]: Finished difference Result 3095 states and 4520 transitions. [2020-12-22 08:47:49,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:49,692 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:47:49,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:49,705 INFO L225 Difference]: With dead ends: 3095 [2020-12-22 08:47:49,705 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:47:49,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:47:49,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:47:49,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:47:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:47:49,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1283 transitions. [2020-12-22 08:47:49,826 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1283 transitions. Word has length 77 [2020-12-22 08:47:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:49,827 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1283 transitions. [2020-12-22 08:47:49,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:49,827 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1283 transitions. [2020-12-22 08:47:49,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:49,828 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:49,829 INFO L422 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] [2020-12-22 08:47:49,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:47:49,829 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:49,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:49,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1612110043, now seen corresponding path program 1 times [2020-12-22 08:47:49,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:49,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869702565] [2020-12-22 08:47:49,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:50,025 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869702565] [2020-12-22 08:47:50,025 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:50,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:50,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539647746] [2020-12-22 08:47:50,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:50,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:50,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:50,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:50,027 INFO L87 Difference]: Start difference. First operand 921 states and 1283 transitions. Second operand 11 states. [2020-12-22 08:47:51,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:51,914 INFO L93 Difference]: Finished difference Result 2683 states and 3871 transitions. [2020-12-22 08:47:51,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:47:51,915 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-12-22 08:47:51,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:51,924 INFO L225 Difference]: With dead ends: 2683 [2020-12-22 08:47:51,924 INFO L226 Difference]: Without dead ends: 2079 [2020-12-22 08:47:51,926 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:47:51,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2079 states. [2020-12-22 08:47:52,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2079 to 925. [2020-12-22 08:47:52,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:47:52,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1287 transitions. [2020-12-22 08:47:52,051 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1287 transitions. Word has length 77 [2020-12-22 08:47:52,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:52,051 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1287 transitions. [2020-12-22 08:47:52,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1287 transitions. [2020-12-22 08:47:52,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:52,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:52,053 INFO L422 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] [2020-12-22 08:47:52,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:47:52,054 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:52,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:52,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1927792199, now seen corresponding path program 1 times [2020-12-22 08:47:52,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:52,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775657123] [2020-12-22 08:47:52,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:52,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:52,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:52,303 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775657123] [2020-12-22 08:47:52,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:52,304 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:52,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979227512] [2020-12-22 08:47:52,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:52,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:52,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:52,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:52,306 INFO L87 Difference]: Start difference. First operand 925 states and 1287 transitions. Second operand 11 states. [2020-12-22 08:47:56,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:56,017 INFO L93 Difference]: Finished difference Result 6915 states and 10232 transitions. [2020-12-22 08:47:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:47:56,018 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-12-22 08:47:56,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:56,048 INFO L225 Difference]: With dead ends: 6915 [2020-12-22 08:47:56,048 INFO L226 Difference]: Without dead ends: 6383 [2020-12-22 08:47:56,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:47:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6383 states. [2020-12-22 08:47:56,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6383 to 929. [2020-12-22 08:47:56,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:47:56,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1291 transitions. [2020-12-22 08:47:56,276 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1291 transitions. Word has length 77 [2020-12-22 08:47:56,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:56,277 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1291 transitions. [2020-12-22 08:47:56,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:47:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1291 transitions. [2020-12-22 08:47:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:56,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:56,279 INFO L422 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] [2020-12-22 08:47:56,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:47:56,279 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:56,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1181439000, now seen corresponding path program 1 times [2020-12-22 08:47:56,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:56,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579375162] [2020-12-22 08:47:56,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:56,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:56,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579375162] [2020-12-22 08:47:56,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:56,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:47:56,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948600466] [2020-12-22 08:47:56,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:47:56,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:56,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:47:56,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:47:56,433 INFO L87 Difference]: Start difference. First operand 929 states and 1291 transitions. Second operand 9 states. [2020-12-22 08:47:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:47:58,007 INFO L93 Difference]: Finished difference Result 3107 states and 4533 transitions. [2020-12-22 08:47:58,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:47:58,008 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:47:58,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:47:58,018 INFO L225 Difference]: With dead ends: 3107 [2020-12-22 08:47:58,018 INFO L226 Difference]: Without dead ends: 2605 [2020-12-22 08:47:58,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:47:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-12-22 08:47:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 929. [2020-12-22 08:47:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:47:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1290 transitions. [2020-12-22 08:47:58,214 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1290 transitions. Word has length 77 [2020-12-22 08:47:58,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:47:58,214 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1290 transitions. [2020-12-22 08:47:58,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:47:58,214 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1290 transitions. [2020-12-22 08:47:58,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:47:58,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:47:58,216 INFO L422 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] [2020-12-22 08:47:58,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:47:58,216 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:47:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:47:58,217 INFO L82 PathProgramCache]: Analyzing trace with hash 540447535, now seen corresponding path program 1 times [2020-12-22 08:47:58,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:47:58,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978689585] [2020-12-22 08:47:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:47:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:47:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:47:58,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978689585] [2020-12-22 08:47:58,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:47:58,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:47:58,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682016474] [2020-12-22 08:47:58,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:47:58,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:47:58,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:47:58,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:47:58,441 INFO L87 Difference]: Start difference. First operand 929 states and 1290 transitions. Second operand 11 states. [2020-12-22 08:48:02,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:02,397 INFO L93 Difference]: Finished difference Result 6195 states and 9152 transitions. [2020-12-22 08:48:02,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:48:02,398 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 77 [2020-12-22 08:48:02,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:02,411 INFO L225 Difference]: With dead ends: 6195 [2020-12-22 08:48:02,412 INFO L226 Difference]: Without dead ends: 5697 [2020-12-22 08:48:02,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:48:02,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5697 states. [2020-12-22 08:48:02,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5697 to 933. [2020-12-22 08:48:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1294 transitions. [2020-12-22 08:48:02,644 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1294 transitions. Word has length 77 [2020-12-22 08:48:02,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:02,645 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1294 transitions. [2020-12-22 08:48:02,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:48:02,645 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1294 transitions. [2020-12-22 08:48:02,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:48:02,647 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:02,647 INFO L422 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] [2020-12-22 08:48:02,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:48:02,648 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:02,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:02,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1913205315, now seen corresponding path program 1 times [2020-12-22 08:48:02,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:02,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704297471] [2020-12-22 08:48:02,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:02,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704297471] [2020-12-22 08:48:02,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:02,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:02,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517466385] [2020-12-22 08:48:02,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:02,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:02,797 INFO L87 Difference]: Start difference. First operand 933 states and 1294 transitions. Second operand 9 states. [2020-12-22 08:48:04,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:04,569 INFO L93 Difference]: Finished difference Result 3102 states and 4525 transitions. [2020-12-22 08:48:04,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:04,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-12-22 08:48:04,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:04,575 INFO L225 Difference]: With dead ends: 3102 [2020-12-22 08:48:04,576 INFO L226 Difference]: Without dead ends: 2605 [2020-12-22 08:48:04,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2605 states. [2020-12-22 08:48:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2605 to 933. [2020-12-22 08:48:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:04,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1293 transitions. [2020-12-22 08:48:04,823 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1293 transitions. Word has length 77 [2020-12-22 08:48:04,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:04,824 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1293 transitions. [2020-12-22 08:48:04,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:04,824 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1293 transitions. [2020-12-22 08:48:04,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:48:04,833 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:04,834 INFO L422 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] [2020-12-22 08:48:04,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:48:04,836 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:04,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1397678712, now seen corresponding path program 1 times [2020-12-22 08:48:04,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:04,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599227726] [2020-12-22 08:48:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:05,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:05,051 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599227726] [2020-12-22 08:48:05,051 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:05,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:05,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506132259] [2020-12-22 08:48:05,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:05,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:05,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:05,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:05,054 INFO L87 Difference]: Start difference. First operand 933 states and 1293 transitions. Second operand 9 states. [2020-12-22 08:48:06,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:06,333 INFO L93 Difference]: Finished difference Result 2281 states and 3304 transitions. [2020-12-22 08:48:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:48:06,338 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:48:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:06,342 INFO L225 Difference]: With dead ends: 2281 [2020-12-22 08:48:06,342 INFO L226 Difference]: Without dead ends: 1677 [2020-12-22 08:48:06,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:48:06,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2020-12-22 08:48:06,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 929. [2020-12-22 08:48:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:06,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1288 transitions. [2020-12-22 08:48:06,494 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1288 transitions. Word has length 78 [2020-12-22 08:48:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:06,495 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1288 transitions. [2020-12-22 08:48:06,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1288 transitions. [2020-12-22 08:48:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:48:06,496 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:06,497 INFO L422 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] [2020-12-22 08:48:06,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:48:06,497 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:06,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:06,498 INFO L82 PathProgramCache]: Analyzing trace with hash -464299805, now seen corresponding path program 1 times [2020-12-22 08:48:06,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:06,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031024101] [2020-12-22 08:48:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:06,675 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031024101] [2020-12-22 08:48:06,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:06,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:06,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254886250] [2020-12-22 08:48:06,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:06,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:06,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:06,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:06,679 INFO L87 Difference]: Start difference. First operand 929 states and 1288 transitions. Second operand 9 states. [2020-12-22 08:48:08,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:08,556 INFO L93 Difference]: Finished difference Result 3165 states and 4612 transitions. [2020-12-22 08:48:08,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:08,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:48:08,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:08,561 INFO L225 Difference]: With dead ends: 3165 [2020-12-22 08:48:08,561 INFO L226 Difference]: Without dead ends: 2633 [2020-12-22 08:48:08,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2020-12-22 08:48:08,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 925. [2020-12-22 08:48:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:48:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1283 transitions. [2020-12-22 08:48:08,790 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1283 transitions. Word has length 78 [2020-12-22 08:48:08,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:08,791 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1283 transitions. [2020-12-22 08:48:08,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:08,791 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1283 transitions. [2020-12-22 08:48:08,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:48:08,793 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:08,793 INFO L422 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] [2020-12-22 08:48:08,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:48:08,793 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 848026116, now seen corresponding path program 1 times [2020-12-22 08:48:08,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:08,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211433058] [2020-12-22 08:48:08,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:08,915 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211433058] [2020-12-22 08:48:08,915 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:08,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:08,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654408538] [2020-12-22 08:48:08,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:08,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:08,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:08,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:08,917 INFO L87 Difference]: Start difference. First operand 925 states and 1283 transitions. Second operand 9 states. [2020-12-22 08:48:10,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:10,565 INFO L93 Difference]: Finished difference Result 3095 states and 4514 transitions. [2020-12-22 08:48:10,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:10,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:48:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:10,576 INFO L225 Difference]: With dead ends: 3095 [2020-12-22 08:48:10,576 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:48:10,578 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:10,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:48:10,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:48:10,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:48:10,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1278 transitions. [2020-12-22 08:48:10,793 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1278 transitions. Word has length 78 [2020-12-22 08:48:10,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:10,793 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1278 transitions. [2020-12-22 08:48:10,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:10,794 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1278 transitions. [2020-12-22 08:48:10,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:10,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:10,795 INFO L422 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] [2020-12-22 08:48:10,795 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:48:10,796 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:10,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:10,796 INFO L82 PathProgramCache]: Analyzing trace with hash -738667670, now seen corresponding path program 1 times [2020-12-22 08:48:10,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:10,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143084354] [2020-12-22 08:48:10,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:10,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:10,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:10,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143084354] [2020-12-22 08:48:10,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:10,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:10,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590282844] [2020-12-22 08:48:10,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:10,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:10,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:10,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:10,923 INFO L87 Difference]: Start difference. First operand 921 states and 1278 transitions. Second operand 9 states. [2020-12-22 08:48:12,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:12,687 INFO L93 Difference]: Finished difference Result 3100 states and 4518 transitions. [2020-12-22 08:48:12,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:12,688 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:12,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:12,692 INFO L225 Difference]: With dead ends: 3100 [2020-12-22 08:48:12,692 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:48:12,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:48:12,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:48:12,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:48:12,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1277 transitions. [2020-12-22 08:48:12,926 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1277 transitions. Word has length 79 [2020-12-22 08:48:12,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:12,926 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1277 transitions. [2020-12-22 08:48:12,927 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:12,927 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1277 transitions. [2020-12-22 08:48:12,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:12,928 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:12,929 INFO L422 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] [2020-12-22 08:48:12,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:48:12,929 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:12,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:12,929 INFO L82 PathProgramCache]: Analyzing trace with hash 749865809, now seen corresponding path program 1 times [2020-12-22 08:48:12,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:12,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064158545] [2020-12-22 08:48:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:13,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:13,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064158545] [2020-12-22 08:48:13,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:13,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:13,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963382409] [2020-12-22 08:48:13,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:13,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:13,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:13,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:13,074 INFO L87 Difference]: Start difference. First operand 921 states and 1277 transitions. Second operand 9 states. [2020-12-22 08:48:14,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:14,707 INFO L93 Difference]: Finished difference Result 2464 states and 3577 transitions. [2020-12-22 08:48:14,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:14,708 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:14,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:14,710 INFO L225 Difference]: With dead ends: 2464 [2020-12-22 08:48:14,710 INFO L226 Difference]: Without dead ends: 1973 [2020-12-22 08:48:14,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:14,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2020-12-22 08:48:14,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 921. [2020-12-22 08:48:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:48:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1276 transitions. [2020-12-22 08:48:14,912 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1276 transitions. Word has length 79 [2020-12-22 08:48:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:14,912 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1276 transitions. [2020-12-22 08:48:14,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:14,913 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1276 transitions. [2020-12-22 08:48:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:14,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:14,914 INFO L422 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] [2020-12-22 08:48:14,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:48:14,914 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:14,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:14,915 INFO L82 PathProgramCache]: Analyzing trace with hash 261207811, now seen corresponding path program 1 times [2020-12-22 08:48:14,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:14,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199893756] [2020-12-22 08:48:14,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:15,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:15,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199893756] [2020-12-22 08:48:15,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:15,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:48:15,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412253401] [2020-12-22 08:48:15,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:48:15,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:15,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:48:15,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:48:15,106 INFO L87 Difference]: Start difference. First operand 921 states and 1276 transitions. Second operand 11 states. [2020-12-22 08:48:19,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:19,973 INFO L93 Difference]: Finished difference Result 6953 states and 10253 transitions. [2020-12-22 08:48:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:48:19,973 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:48:19,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:19,984 INFO L225 Difference]: With dead ends: 6953 [2020-12-22 08:48:19,984 INFO L226 Difference]: Without dead ends: 6400 [2020-12-22 08:48:19,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:48:19,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6400 states. [2020-12-22 08:48:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6400 to 925. [2020-12-22 08:48:20,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:48:20,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1280 transitions. [2020-12-22 08:48:20,306 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1280 transitions. Word has length 79 [2020-12-22 08:48:20,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:20,307 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1280 transitions. [2020-12-22 08:48:20,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:48:20,307 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1280 transitions. [2020-12-22 08:48:20,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:20,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:20,309 INFO L422 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] [2020-12-22 08:48:20,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:48:20,309 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:20,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:20,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1928072588, now seen corresponding path program 1 times [2020-12-22 08:48:20,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:20,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336847606] [2020-12-22 08:48:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:20,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336847606] [2020-12-22 08:48:20,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:20,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:48:20,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104292905] [2020-12-22 08:48:20,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:48:20,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:20,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:48:20,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:48:20,514 INFO L87 Difference]: Start difference. First operand 925 states and 1280 transitions. Second operand 11 states. [2020-12-22 08:48:26,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:26,274 INFO L93 Difference]: Finished difference Result 6859 states and 10064 transitions. [2020-12-22 08:48:26,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:48:26,278 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:48:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:26,286 INFO L225 Difference]: With dead ends: 6859 [2020-12-22 08:48:26,287 INFO L226 Difference]: Without dead ends: 6842 [2020-12-22 08:48:26,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:48:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6842 states. [2020-12-22 08:48:26,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6842 to 929. [2020-12-22 08:48:26,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:26,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1284 transitions. [2020-12-22 08:48:26,735 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1284 transitions. Word has length 79 [2020-12-22 08:48:26,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:26,735 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1284 transitions. [2020-12-22 08:48:26,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:48:26,736 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1284 transitions. [2020-12-22 08:48:26,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:26,738 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:26,738 INFO L422 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] [2020-12-22 08:48:26,738 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:48:26,738 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:26,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:26,739 INFO L82 PathProgramCache]: Analyzing trace with hash -439539109, now seen corresponding path program 1 times [2020-12-22 08:48:26,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:26,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757393557] [2020-12-22 08:48:26,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:26,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757393557] [2020-12-22 08:48:26,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:26,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:26,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729487885] [2020-12-22 08:48:26,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:26,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:26,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:26,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:26,909 INFO L87 Difference]: Start difference. First operand 929 states and 1284 transitions. Second operand 9 states. [2020-12-22 08:48:28,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:28,704 INFO L93 Difference]: Finished difference Result 1986 states and 2842 transitions. [2020-12-22 08:48:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:28,704 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:28,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:28,707 INFO L225 Difference]: With dead ends: 1986 [2020-12-22 08:48:28,707 INFO L226 Difference]: Without dead ends: 1981 [2020-12-22 08:48:28,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:28,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2020-12-22 08:48:28,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 929. [2020-12-22 08:48:28,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:28,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1283 transitions. [2020-12-22 08:48:28,930 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1283 transitions. Word has length 79 [2020-12-22 08:48:28,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:28,930 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1283 transitions. [2020-12-22 08:48:28,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:28,930 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1283 transitions. [2020-12-22 08:48:28,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:28,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:28,932 INFO L422 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] [2020-12-22 08:48:28,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:48:28,932 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:28,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:28,932 INFO L82 PathProgramCache]: Analyzing trace with hash -845454890, now seen corresponding path program 1 times [2020-12-22 08:48:28,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:28,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895874905] [2020-12-22 08:48:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:29,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:29,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895874905] [2020-12-22 08:48:29,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:29,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:29,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963322970] [2020-12-22 08:48:29,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:29,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:29,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:29,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:29,115 INFO L87 Difference]: Start difference. First operand 929 states and 1283 transitions. Second operand 9 states. [2020-12-22 08:48:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:30,967 INFO L93 Difference]: Finished difference Result 1986 states and 2841 transitions. [2020-12-22 08:48:30,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:30,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:30,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:30,969 INFO L225 Difference]: With dead ends: 1986 [2020-12-22 08:48:30,969 INFO L226 Difference]: Without dead ends: 1981 [2020-12-22 08:48:30,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2020-12-22 08:48:31,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 929. [2020-12-22 08:48:31,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:31,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1281 transitions. [2020-12-22 08:48:31,230 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1281 transitions. Word has length 79 [2020-12-22 08:48:31,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:31,230 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1281 transitions. [2020-12-22 08:48:31,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:31,230 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1281 transitions. [2020-12-22 08:48:31,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:31,231 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:31,232 INFO L422 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] [2020-12-22 08:48:31,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:48:31,232 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:31,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:31,233 INFO L82 PathProgramCache]: Analyzing trace with hash 88191580, now seen corresponding path program 1 times [2020-12-22 08:48:31,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:31,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113212742] [2020-12-22 08:48:31,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:31,412 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113212742] [2020-12-22 08:48:31,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:31,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:31,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713742591] [2020-12-22 08:48:31,413 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:31,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:31,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:31,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:31,414 INFO L87 Difference]: Start difference. First operand 929 states and 1281 transitions. Second operand 9 states. [2020-12-22 08:48:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:33,144 INFO L93 Difference]: Finished difference Result 2469 states and 3578 transitions. [2020-12-22 08:48:33,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:33,145 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:33,147 INFO L225 Difference]: With dead ends: 2469 [2020-12-22 08:48:33,147 INFO L226 Difference]: Without dead ends: 1981 [2020-12-22 08:48:33,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2020-12-22 08:48:33,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 929. [2020-12-22 08:48:33,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:33,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1280 transitions. [2020-12-22 08:48:33,429 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1280 transitions. Word has length 79 [2020-12-22 08:48:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:33,429 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1280 transitions. [2020-12-22 08:48:33,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1280 transitions. [2020-12-22 08:48:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:33,431 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:33,431 INFO L422 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] [2020-12-22 08:48:33,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:48:33,432 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash 310074252, now seen corresponding path program 1 times [2020-12-22 08:48:33,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:33,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855452842] [2020-12-22 08:48:33,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:33,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855452842] [2020-12-22 08:48:33,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:33,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:33,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608319718] [2020-12-22 08:48:33,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:33,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:33,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:33,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:33,573 INFO L87 Difference]: Start difference. First operand 929 states and 1280 transitions. Second operand 9 states. [2020-12-22 08:48:35,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:35,459 INFO L93 Difference]: Finished difference Result 2472 states and 3580 transitions. [2020-12-22 08:48:35,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:35,460 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:35,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:35,462 INFO L225 Difference]: With dead ends: 2472 [2020-12-22 08:48:35,462 INFO L226 Difference]: Without dead ends: 1981 [2020-12-22 08:48:35,463 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:35,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1981 states. [2020-12-22 08:48:35,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1981 to 929. [2020-12-22 08:48:35,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:35,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1279 transitions. [2020-12-22 08:48:35,680 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1279 transitions. Word has length 79 [2020-12-22 08:48:35,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:35,680 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1279 transitions. [2020-12-22 08:48:35,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:35,681 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1279 transitions. [2020-12-22 08:48:35,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:35,682 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:35,682 INFO L422 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] [2020-12-22 08:48:35,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:48:35,682 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:35,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:35,683 INFO L82 PathProgramCache]: Analyzing trace with hash -274145819, now seen corresponding path program 1 times [2020-12-22 08:48:35,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:35,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030167390] [2020-12-22 08:48:35,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:35,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:35,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:35,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030167390] [2020-12-22 08:48:35,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:35,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:48:35,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723146435] [2020-12-22 08:48:35,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:48:35,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:35,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:48:35,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:48:35,888 INFO L87 Difference]: Start difference. First operand 929 states and 1279 transitions. Second operand 11 states. [2020-12-22 08:48:40,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:40,872 INFO L93 Difference]: Finished difference Result 6201 states and 9143 transitions. [2020-12-22 08:48:40,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:48:40,873 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 79 [2020-12-22 08:48:40,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:40,879 INFO L225 Difference]: With dead ends: 6201 [2020-12-22 08:48:40,879 INFO L226 Difference]: Without dead ends: 5698 [2020-12-22 08:48:40,881 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:48:40,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5698 states. [2020-12-22 08:48:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5698 to 933. [2020-12-22 08:48:41,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:41,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1283 transitions. [2020-12-22 08:48:41,151 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1283 transitions. Word has length 79 [2020-12-22 08:48:41,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:41,151 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1283 transitions. [2020-12-22 08:48:41,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:48:41,151 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1283 transitions. [2020-12-22 08:48:41,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:41,152 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:41,153 INFO L422 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] [2020-12-22 08:48:41,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:48:41,153 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:41,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:41,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1678498669, now seen corresponding path program 1 times [2020-12-22 08:48:41,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:41,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975886813] [2020-12-22 08:48:41,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:41,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:41,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975886813] [2020-12-22 08:48:41,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:41,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:41,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216076176] [2020-12-22 08:48:41,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:41,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:41,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:41,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:41,325 INFO L87 Difference]: Start difference. First operand 933 states and 1283 transitions. Second operand 9 states. [2020-12-22 08:48:43,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:43,370 INFO L93 Difference]: Finished difference Result 2479 states and 3587 transitions. [2020-12-22 08:48:43,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:43,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:43,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:43,373 INFO L225 Difference]: With dead ends: 2479 [2020-12-22 08:48:43,373 INFO L226 Difference]: Without dead ends: 1985 [2020-12-22 08:48:43,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:43,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-12-22 08:48:43,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 933. [2020-12-22 08:48:43,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:43,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1281 transitions. [2020-12-22 08:48:43,599 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1281 transitions. Word has length 79 [2020-12-22 08:48:43,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:43,599 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1281 transitions. [2020-12-22 08:48:43,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:43,599 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1281 transitions. [2020-12-22 08:48:43,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:43,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:43,600 INFO L422 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] [2020-12-22 08:48:43,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:48:43,600 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:43,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:43,601 INFO L82 PathProgramCache]: Analyzing trace with hash 861543357, now seen corresponding path program 1 times [2020-12-22 08:48:43,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:43,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594557061] [2020-12-22 08:48:43,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:43,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:43,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594557061] [2020-12-22 08:48:43,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:43,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:43,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60272218] [2020-12-22 08:48:43,752 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:43,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:43,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:43,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:43,753 INFO L87 Difference]: Start difference. First operand 933 states and 1281 transitions. Second operand 9 states. [2020-12-22 08:48:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:45,718 INFO L93 Difference]: Finished difference Result 2473 states and 3578 transitions. [2020-12-22 08:48:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:45,719 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:45,721 INFO L225 Difference]: With dead ends: 2473 [2020-12-22 08:48:45,721 INFO L226 Difference]: Without dead ends: 1985 [2020-12-22 08:48:45,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-12-22 08:48:45,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 933. [2020-12-22 08:48:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:45,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1280 transitions. [2020-12-22 08:48:45,964 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1280 transitions. Word has length 79 [2020-12-22 08:48:45,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:45,964 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1280 transitions. [2020-12-22 08:48:45,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:45,964 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1280 transitions. [2020-12-22 08:48:45,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:45,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:45,966 INFO L422 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] [2020-12-22 08:48:45,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 08:48:45,966 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:45,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:45,967 INFO L82 PathProgramCache]: Analyzing trace with hash -861388972, now seen corresponding path program 1 times [2020-12-22 08:48:45,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:45,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676874338] [2020-12-22 08:48:45,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:46,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:46,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676874338] [2020-12-22 08:48:46,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:46,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:46,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001522060] [2020-12-22 08:48:46,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:46,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:46,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:46,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:46,128 INFO L87 Difference]: Start difference. First operand 933 states and 1280 transitions. Second operand 9 states. [2020-12-22 08:48:48,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:48,190 INFO L93 Difference]: Finished difference Result 1990 states and 2838 transitions. [2020-12-22 08:48:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:48,191 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:48,194 INFO L225 Difference]: With dead ends: 1990 [2020-12-22 08:48:48,194 INFO L226 Difference]: Without dead ends: 1985 [2020-12-22 08:48:48,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-12-22 08:48:48,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 933. [2020-12-22 08:48:48,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1278 transitions. [2020-12-22 08:48:48,461 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1278 transitions. Word has length 79 [2020-12-22 08:48:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:48,462 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1278 transitions. [2020-12-22 08:48:48,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1278 transitions. [2020-12-22 08:48:48,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:48,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:48,463 INFO L422 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] [2020-12-22 08:48:48,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 08:48:48,464 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:48,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1854145171, now seen corresponding path program 1 times [2020-12-22 08:48:48,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:48,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293548557] [2020-12-22 08:48:48,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:48,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293548557] [2020-12-22 08:48:48,619 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:48,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:48,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346794996] [2020-12-22 08:48:48,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:48,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:48,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:48,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:48,621 INFO L87 Difference]: Start difference. First operand 933 states and 1278 transitions. Second operand 9 states. [2020-12-22 08:48:50,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:50,727 INFO L93 Difference]: Finished difference Result 2473 states and 3575 transitions. [2020-12-22 08:48:50,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:50,728 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:50,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:50,730 INFO L225 Difference]: With dead ends: 2473 [2020-12-22 08:48:50,730 INFO L226 Difference]: Without dead ends: 1985 [2020-12-22 08:48:50,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:50,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-12-22 08:48:50,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 933. [2020-12-22 08:48:50,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:50,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1277 transitions. [2020-12-22 08:48:50,969 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1277 transitions. Word has length 79 [2020-12-22 08:48:50,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:50,969 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1277 transitions. [2020-12-22 08:48:50,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1277 transitions. [2020-12-22 08:48:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:48:50,970 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:50,971 INFO L422 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] [2020-12-22 08:48:50,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 08:48:50,971 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:50,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:50,972 INFO L82 PathProgramCache]: Analyzing trace with hash -403243016, now seen corresponding path program 1 times [2020-12-22 08:48:50,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:50,972 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358380026] [2020-12-22 08:48:50,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:51,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:51,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358380026] [2020-12-22 08:48:51,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:51,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:51,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936606692] [2020-12-22 08:48:51,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:51,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:51,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:51,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:51,132 INFO L87 Difference]: Start difference. First operand 933 states and 1277 transitions. Second operand 9 states. [2020-12-22 08:48:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:53,249 INFO L93 Difference]: Finished difference Result 2475 states and 3576 transitions. [2020-12-22 08:48:53,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:53,249 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 79 [2020-12-22 08:48:53,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:53,252 INFO L225 Difference]: With dead ends: 2475 [2020-12-22 08:48:53,252 INFO L226 Difference]: Without dead ends: 1985 [2020-12-22 08:48:53,253 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2020-12-22 08:48:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 933. [2020-12-22 08:48:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2020-12-22 08:48:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1275 transitions. [2020-12-22 08:48:53,500 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1275 transitions. Word has length 79 [2020-12-22 08:48:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:53,500 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1275 transitions. [2020-12-22 08:48:53,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1275 transitions. [2020-12-22 08:48:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:48:53,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:53,502 INFO L422 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] [2020-12-22 08:48:53,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 08:48:53,502 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:53,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:53,503 INFO L82 PathProgramCache]: Analyzing trace with hash -716120998, now seen corresponding path program 1 times [2020-12-22 08:48:53,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:53,503 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807244105] [2020-12-22 08:48:53,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:53,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807244105] [2020-12-22 08:48:53,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:53,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:53,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227229987] [2020-12-22 08:48:53,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:53,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:53,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:53,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:53,627 INFO L87 Difference]: Start difference. First operand 933 states and 1275 transitions. Second operand 9 states. [2020-12-22 08:48:56,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:56,010 INFO L93 Difference]: Finished difference Result 3194 states and 4614 transitions. [2020-12-22 08:48:56,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:56,010 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:48:56,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:56,013 INFO L225 Difference]: With dead ends: 3194 [2020-12-22 08:48:56,013 INFO L226 Difference]: Without dead ends: 2641 [2020-12-22 08:48:56,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:48:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2020-12-22 08:48:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 929. [2020-12-22 08:48:56,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 929 states. [2020-12-22 08:48:56,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1270 transitions. [2020-12-22 08:48:56,277 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1270 transitions. Word has length 80 [2020-12-22 08:48:56,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:56,277 INFO L481 AbstractCegarLoop]: Abstraction has 929 states and 1270 transitions. [2020-12-22 08:48:56,277 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1270 transitions. [2020-12-22 08:48:56,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:48:56,279 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:56,279 INFO L422 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] [2020-12-22 08:48:56,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 08:48:56,279 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:56,280 INFO L82 PathProgramCache]: Analyzing trace with hash -819991886, now seen corresponding path program 1 times [2020-12-22 08:48:56,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:56,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982883522] [2020-12-22 08:48:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:56,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982883522] [2020-12-22 08:48:56,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:56,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:56,405 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536012539] [2020-12-22 08:48:56,405 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:56,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:56,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:56,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:56,406 INFO L87 Difference]: Start difference. First operand 929 states and 1270 transitions. Second operand 9 states. [2020-12-22 08:48:58,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:48:58,809 INFO L93 Difference]: Finished difference Result 2614 states and 3753 transitions. [2020-12-22 08:48:58,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:48:58,810 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:48:58,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:48:58,812 INFO L225 Difference]: With dead ends: 2614 [2020-12-22 08:48:58,812 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:48:58,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:48:58,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:48:59,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 925. [2020-12-22 08:48:59,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 925 states. [2020-12-22 08:48:59,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1265 transitions. [2020-12-22 08:48:59,085 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1265 transitions. Word has length 80 [2020-12-22 08:48:59,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:48:59,086 INFO L481 AbstractCegarLoop]: Abstraction has 925 states and 1265 transitions. [2020-12-22 08:48:59,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:48:59,086 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1265 transitions. [2020-12-22 08:48:59,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:48:59,087 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:48:59,087 INFO L422 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] [2020-12-22 08:48:59,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-22 08:48:59,087 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:48:59,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:48:59,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1300130107, now seen corresponding path program 1 times [2020-12-22 08:48:59,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:48:59,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750650747] [2020-12-22 08:48:59,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:48:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:48:59,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:48:59,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750650747] [2020-12-22 08:48:59,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:48:59,208 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:48:59,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042247364] [2020-12-22 08:48:59,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:48:59,208 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:48:59,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:48:59,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:48:59,209 INFO L87 Difference]: Start difference. First operand 925 states and 1265 transitions. Second operand 9 states. [2020-12-22 08:49:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:01,523 INFO L93 Difference]: Finished difference Result 3100 states and 4494 transitions. [2020-12-22 08:49:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:49:01,524 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:49:01,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:01,526 INFO L225 Difference]: With dead ends: 3100 [2020-12-22 08:49:01,526 INFO L226 Difference]: Without dead ends: 2597 [2020-12-22 08:49:01,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:49:01,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2597 states. [2020-12-22 08:49:01,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2597 to 921. [2020-12-22 08:49:01,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 921 states. [2020-12-22 08:49:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1260 transitions. [2020-12-22 08:49:01,779 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1260 transitions. Word has length 80 [2020-12-22 08:49:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:01,780 INFO L481 AbstractCegarLoop]: Abstraction has 921 states and 1260 transitions. [2020-12-22 08:49:01,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:49:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1260 transitions. [2020-12-22 08:49:01,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:49:01,781 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:01,781 INFO L422 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] [2020-12-22 08:49:01,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-22 08:49:01,781 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:49:01,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:01,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1565003779, now seen corresponding path program 1 times [2020-12-22 08:49:01,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:01,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937386471] [2020-12-22 08:49:01,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:49:01,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937386471] [2020-12-22 08:49:01,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:01,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:49:01,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688890370] [2020-12-22 08:49:01,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:49:01,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:01,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:49:01,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:49:01,925 INFO L87 Difference]: Start difference. First operand 921 states and 1260 transitions. Second operand 9 states. [2020-12-22 08:49:03,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:03,991 INFO L93 Difference]: Finished difference Result 2459 states and 3555 transitions. [2020-12-22 08:49:03,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:49:03,992 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:49:03,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:03,994 INFO L225 Difference]: With dead ends: 2459 [2020-12-22 08:49:03,994 INFO L226 Difference]: Without dead ends: 1972 [2020-12-22 08:49:03,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:49:03,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1972 states. [2020-12-22 08:49:04,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1972 to 920. [2020-12-22 08:49:04,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-12-22 08:49:04,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1258 transitions. [2020-12-22 08:49:04,274 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1258 transitions. Word has length 80 [2020-12-22 08:49:04,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:04,274 INFO L481 AbstractCegarLoop]: Abstraction has 920 states and 1258 transitions. [2020-12-22 08:49:04,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:49:04,275 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1258 transitions. [2020-12-22 08:49:04,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:49:04,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:04,276 INFO L422 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] [2020-12-22 08:49:04,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-22 08:49:04,276 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:49:04,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:04,277 INFO L82 PathProgramCache]: Analyzing trace with hash 484129246, now seen corresponding path program 1 times [2020-12-22 08:49:04,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:04,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627726784] [2020-12-22 08:49:04,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:05,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:49:05,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627726784] [2020-12-22 08:49:05,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:05,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-12-22 08:49:05,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904645757] [2020-12-22 08:49:05,652 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-22 08:49:05,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:05,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-22 08:49:05,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2020-12-22 08:49:05,653 INFO L87 Difference]: Start difference. First operand 920 states and 1258 transitions. Second operand 28 states. [2020-12-22 08:49:06,066 WARN L197 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 108 [2020-12-22 08:49:06,576 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-22 08:49:06,773 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-12-22 08:49:06,982 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:49:07,199 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:49:07,403 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2020-12-22 08:49:07,899 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2020-12-22 08:49:08,223 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2020-12-22 08:49:08,576 WARN L197 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2020-12-22 08:49:08,980 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2020-12-22 08:49:09,236 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-12-22 08:49:09,487 WARN L197 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-12-22 08:49:11,945 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-22 08:49:14,187 WARN L197 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-12-22 08:49:19,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:19,931 INFO L93 Difference]: Finished difference Result 3717 states and 5376 transitions. [2020-12-22 08:49:19,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:49:19,932 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 81 [2020-12-22 08:49:19,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:19,935 INFO L225 Difference]: With dead ends: 3717 [2020-12-22 08:49:19,935 INFO L226 Difference]: Without dead ends: 3227 [2020-12-22 08:49:19,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=445, Invalid=2417, Unknown=0, NotChecked=0, Total=2862 [2020-12-22 08:49:19,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2020-12-22 08:49:20,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 940. [2020-12-22 08:49:20,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 940 states. [2020-12-22 08:49:20,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 940 states to 940 states and 1285 transitions. [2020-12-22 08:49:20,290 INFO L78 Accepts]: Start accepts. Automaton has 940 states and 1285 transitions. Word has length 81 [2020-12-22 08:49:20,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:20,290 INFO L481 AbstractCegarLoop]: Abstraction has 940 states and 1285 transitions. [2020-12-22 08:49:20,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-22 08:49:20,290 INFO L276 IsEmpty]: Start isEmpty. Operand 940 states and 1285 transitions. [2020-12-22 08:49:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:49:20,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:20,291 INFO L422 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] [2020-12-22 08:49:20,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-22 08:49:20,291 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:49:20,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:20,292 INFO L82 PathProgramCache]: Analyzing trace with hash 852624389, now seen corresponding path program 1 times [2020-12-22 08:49:20,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:20,292 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26607581] [2020-12-22 08:49:20,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:22,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:49:22,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26607581] [2020-12-22 08:49:22,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:22,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:49:22,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234170278] [2020-12-22 08:49:22,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:49:22,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:22,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:49:22,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=740, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:49:22,009 INFO L87 Difference]: Start difference. First operand 940 states and 1285 transitions. Second operand 29 states. [2020-12-22 08:49:22,617 WARN L197 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122 [2020-12-22 08:49:23,012 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-12-22 08:49:23,175 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-12-22 08:49:23,385 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2020-12-22 08:49:23,635 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2020-12-22 08:49:23,901 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-22 08:49:24,179 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 08:49:24,465 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:49:25,036 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-12-22 08:49:25,455 WARN L197 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2020-12-22 08:49:25,952 WARN L197 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2020-12-22 08:49:26,534 WARN L197 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 101 [2020-12-22 08:49:26,924 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:49:27,302 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2020-12-22 08:49:27,544 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-12-22 08:49:28,090 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-22 08:49:29,943 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:49:31,641 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:49:33,491 WARN L197 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-12-22 08:49:33,771 WARN L197 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-22 08:49:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:49:40,707 INFO L93 Difference]: Finished difference Result 3800 states and 5474 transitions. [2020-12-22 08:49:40,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-22 08:49:40,710 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 81 [2020-12-22 08:49:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:49:40,714 INFO L225 Difference]: With dead ends: 3800 [2020-12-22 08:49:40,714 INFO L226 Difference]: Without dead ends: 3310 [2020-12-22 08:49:40,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 487 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=482, Invalid=2598, Unknown=0, NotChecked=0, Total=3080 [2020-12-22 08:49:40,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2020-12-22 08:49:41,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 950. [2020-12-22 08:49:41,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2020-12-22 08:49:41,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1299 transitions. [2020-12-22 08:49:41,140 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1299 transitions. Word has length 81 [2020-12-22 08:49:41,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:49:41,140 INFO L481 AbstractCegarLoop]: Abstraction has 950 states and 1299 transitions. [2020-12-22 08:49:41,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:49:41,140 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1299 transitions. [2020-12-22 08:49:41,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:49:41,141 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:49:41,141 INFO L422 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] [2020-12-22 08:49:41,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-22 08:49:41,142 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:49:41,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:49:41,142 INFO L82 PathProgramCache]: Analyzing trace with hash -132869610, now seen corresponding path program 1 times [2020-12-22 08:49:41,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:49:41,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948226892] [2020-12-22 08:49:41,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:49:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:49:42,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:49:42,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948226892] [2020-12-22 08:49:42,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:49:42,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:49:42,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93417773] [2020-12-22 08:49:42,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:49:42,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:49:42,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:49:42,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:49:42,887 INFO L87 Difference]: Start difference. First operand 950 states and 1299 transitions. Second operand 29 states. [2020-12-22 08:49:43,354 WARN L197 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-12-22 08:49:43,955 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-22 08:49:44,154 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-22 08:49:44,374 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-22 08:49:44,609 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-22 08:49:44,808 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:49:45,362 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2020-12-22 08:49:45,704 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-12-22 08:49:46,107 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-12-22 08:49:46,579 WARN L197 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2020-12-22 08:49:46,873 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-12-22 08:49:47,150 WARN L197 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-12-22 08:49:47,376 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2020-12-22 08:49:47,959 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 08:50:02,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:02,741 INFO L93 Difference]: Finished difference Result 3647 states and 5321 transitions. [2020-12-22 08:50:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:50:02,743 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 81 [2020-12-22 08:50:02,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:02,746 INFO L225 Difference]: With dead ends: 3647 [2020-12-22 08:50:02,746 INFO L226 Difference]: Without dead ends: 3160 [2020-12-22 08:50:02,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=413, Invalid=2557, Unknown=0, NotChecked=0, Total=2970 [2020-12-22 08:50:02,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3160 states. [2020-12-22 08:50:03,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3160 to 955. [2020-12-22 08:50:03,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-12-22 08:50:03,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1306 transitions. [2020-12-22 08:50:03,081 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1306 transitions. Word has length 81 [2020-12-22 08:50:03,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:03,081 INFO L481 AbstractCegarLoop]: Abstraction has 955 states and 1306 transitions. [2020-12-22 08:50:03,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:50:03,081 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1306 transitions. [2020-12-22 08:50:03,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:50:03,082 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:03,082 INFO L422 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] [2020-12-22 08:50:03,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-22 08:50:03,083 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:03,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:03,083 INFO L82 PathProgramCache]: Analyzing trace with hash -174601812, now seen corresponding path program 1 times [2020-12-22 08:50:03,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:03,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475233121] [2020-12-22 08:50:03,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:03,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:05,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:05,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475233121] [2020-12-22 08:50:05,097 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:05,097 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-12-22 08:50:05,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125303565] [2020-12-22 08:50:05,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-22 08:50:05,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:05,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-22 08:50:05,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2020-12-22 08:50:05,099 INFO L87 Difference]: Start difference. First operand 955 states and 1306 transitions. Second operand 28 states. [2020-12-22 08:50:05,672 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116 [2020-12-22 08:50:06,171 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2020-12-22 08:50:06,389 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-12-22 08:50:06,612 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-22 08:50:06,856 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:50:07,107 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-22 08:50:07,365 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:50:08,021 WARN L197 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-12-22 08:50:08,432 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-12-22 08:50:08,908 WARN L197 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-12-22 08:50:09,487 WARN L197 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2020-12-22 08:50:09,846 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-12-22 08:50:10,186 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2020-12-22 08:50:10,441 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2020-12-22 08:50:11,085 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-22 08:50:27,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:27,408 INFO L93 Difference]: Finished difference Result 3160 states and 4578 transitions. [2020-12-22 08:50:27,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-12-22 08:50:27,410 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 81 [2020-12-22 08:50:27,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:27,413 INFO L225 Difference]: With dead ends: 3160 [2020-12-22 08:50:27,414 INFO L226 Difference]: Without dead ends: 2668 [2020-12-22 08:50:27,416 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=403, Invalid=2353, Unknown=0, NotChecked=0, Total=2756 [2020-12-22 08:50:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-12-22 08:50:27,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 955. [2020-12-22 08:50:27,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-12-22 08:50:27,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1305 transitions. [2020-12-22 08:50:27,778 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1305 transitions. Word has length 81 [2020-12-22 08:50:27,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:27,778 INFO L481 AbstractCegarLoop]: Abstraction has 955 states and 1305 transitions. [2020-12-22 08:50:27,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-12-22 08:50:27,779 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1305 transitions. [2020-12-22 08:50:27,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:50:27,779 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:27,780 INFO L422 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] [2020-12-22 08:50:27,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-22 08:50:27,780 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:27,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:27,780 INFO L82 PathProgramCache]: Analyzing trace with hash 295761583, now seen corresponding path program 1 times [2020-12-22 08:50:27,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:27,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450658173] [2020-12-22 08:50:27,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:30,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:30,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450658173] [2020-12-22 08:50:30,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:30,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2020-12-22 08:50:30,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2468887] [2020-12-22 08:50:30,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-12-22 08:50:30,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:30,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-12-22 08:50:30,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2020-12-22 08:50:30,266 INFO L87 Difference]: Start difference. First operand 955 states and 1305 transitions. Second operand 29 states. [2020-12-22 08:50:30,853 WARN L197 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 112 [2020-12-22 08:50:31,219 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32 [2020-12-22 08:50:31,407 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-12-22 08:50:31,652 WARN L197 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:50:31,907 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:50:32,190 WARN L197 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:50:32,480 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:50:32,773 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-22 08:50:33,496 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2020-12-22 08:50:33,960 WARN L197 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2020-12-22 08:50:34,460 WARN L197 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-12-22 08:50:35,036 WARN L197 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-12-22 08:50:35,479 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-22 08:50:35,881 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-12-22 08:50:36,190 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-12-22 08:50:37,256 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:50:39,578 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-22 08:50:41,948 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-22 08:50:44,734 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-12-22 08:50:45,021 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-22 08:50:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:50:56,259 INFO L93 Difference]: Finished difference Result 3258 states and 4671 transitions. [2020-12-22 08:50:56,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-22 08:50:56,261 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 81 [2020-12-22 08:50:56,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:50:56,265 INFO L225 Difference]: With dead ends: 3258 [2020-12-22 08:50:56,265 INFO L226 Difference]: Without dead ends: 3254 [2020-12-22 08:50:56,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=507, Invalid=2573, Unknown=0, NotChecked=0, Total=3080 [2020-12-22 08:50:56,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2020-12-22 08:50:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 970. [2020-12-22 08:50:56,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-12-22 08:50:56,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1325 transitions. [2020-12-22 08:50:56,636 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1325 transitions. Word has length 81 [2020-12-22 08:50:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:50:56,636 INFO L481 AbstractCegarLoop]: Abstraction has 970 states and 1325 transitions. [2020-12-22 08:50:56,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-12-22 08:50:56,636 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1325 transitions. [2020-12-22 08:50:56,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:50:56,637 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:50:56,637 INFO L422 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] [2020-12-22 08:50:56,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-22 08:50:56,638 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:50:56,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:50:56,638 INFO L82 PathProgramCache]: Analyzing trace with hash -731464618, now seen corresponding path program 1 times [2020-12-22 08:50:56,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:50:56,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497803278] [2020-12-22 08:50:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:50:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:50:59,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:50:59,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497803278] [2020-12-22 08:50:59,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:50:59,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2020-12-22 08:50:59,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641108282] [2020-12-22 08:50:59,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-12-22 08:50:59,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:50:59,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-12-22 08:50:59,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2020-12-22 08:50:59,278 INFO L87 Difference]: Start difference. First operand 970 states and 1325 transitions. Second operand 28 states. [2020-12-22 08:51:00,135 WARN L197 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2020-12-22 08:51:00,385 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2020-12-22 08:51:01,004 WARN L197 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2020-12-22 08:51:01,308 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2020-12-22 08:51:01,706 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2020-12-22 08:51:02,115 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2020-12-22 08:51:02,516 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-12-22 08:51:02,917 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:51:03,299 WARN L197 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:51:04,209 WARN L197 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2020-12-22 08:51:04,827 WARN L197 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2020-12-22 08:51:05,618 WARN L197 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-12-22 08:51:06,458 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2020-12-22 08:51:06,985 WARN L197 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-12-22 08:51:07,491 WARN L197 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-12-22 08:51:07,904 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-22 08:51:08,252 WARN L197 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2020-12-22 08:51:08,625 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-22 08:51:09,089 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-12-22 08:51:09,537 WARN L197 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-22 08:51:09,827 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-12-22 08:51:10,392 WARN L197 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2020-12-22 08:51:11,436 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-22 08:51:12,567 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-22 08:51:13,629 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-22 08:51:14,475 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26