/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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:09:25,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:09:25,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:09:25,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:09:25,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:09:25,847 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:09:25,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:09:25,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:09:25,861 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:09:25,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:09:25,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:09:25,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:09:25,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:09:25,873 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:09:25,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:09:25,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:09:25,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:09:25,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:09:25,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:09:25,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:09:25,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:09:25,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:09:25,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:09:25,904 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:09:25,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:09:25,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:09:25,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:09:25,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:09:25,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:09:25,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:09:25,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:09:25,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:09:25,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:09:25,927 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:09:25,928 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:09:25,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:09:25,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:09:25,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:09:25,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:09:25,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:09:25,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:09:25,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:09:25,962 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:09:25,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:09:25,964 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:09:25,964 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:09:25,965 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:09:25,965 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:09:25,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:09:25,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:09:25,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:09:25,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:09:25,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:09:25,966 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:09:25,966 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:09:25,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:09:25,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:09:25,967 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:09:25,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:09:25,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:09:25,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:09:25,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:09:25,968 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:09:25,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:09:25,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:09:25,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:09:25,969 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:09:25,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:09:26,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:09:26,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:09:26,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:09:26,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:09:26,351 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:09:26,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-12-22 08:09:26,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0d06fac/ec505252ee1c47fba441704978267d00/FLAGe99a09503 [2020-12-22 08:09:27,301 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:09:27,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-12-22 08:09:27,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0d06fac/ec505252ee1c47fba441704978267d00/FLAGe99a09503 [2020-12-22 08:09:27,437 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b0d06fac/ec505252ee1c47fba441704978267d00 [2020-12-22 08:09:27,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:09:27,443 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:09:27,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:09:27,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:09:27,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:09:27,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:09:27" (1/1) ... [2020-12-22 08:09:27,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2cf618 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:27, skipping insertion in model container [2020-12-22 08:09:27,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:09:27" (1/1) ... [2020-12-22 08:09:27,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:09:27,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:09:28,270 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31280,31293] [2020-12-22 08:09:28,292 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32170,32183] [2020-12-22 08:09:28,320 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[33829,33842] [2020-12-22 08:09:28,345 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35187,35200] [2020-12-22 08:09:28,504 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[48282,48295] [2020-12-22 08:09:28,647 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57010,57023] [2020-12-22 08:09:28,665 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57903,57916] [2020-12-22 08:09:28,696 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[59565,59578] [2020-12-22 08:09:28,717 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60458,60471] [2020-12-22 08:09:28,758 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62889,62902] [2020-12-22 08:09:28,786 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[63782,63795] [2020-12-22 08:09:28,815 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[65444,65457] [2020-12-22 08:09:28,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:09:28,908 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:09:29,167 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[31280,31293] [2020-12-22 08:09:29,183 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[32170,32183] [2020-12-22 08:09:29,207 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[33829,33842] [2020-12-22 08:09:29,229 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[35187,35200] [2020-12-22 08:09:29,358 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[48282,48295] [2020-12-22 08:09:29,476 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57010,57023] [2020-12-22 08:09:29,494 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[57903,57916] [2020-12-22 08:09:29,520 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[59565,59578] [2020-12-22 08:09:29,539 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[60458,60471] [2020-12-22 08:09:29,579 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[62889,62902] [2020-12-22 08:09:29,596 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[63782,63795] [2020-12-22 08:09:29,621 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_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c[65444,65457] [2020-12-22 08:09:29,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:09:29,711 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:09:29,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29 WrapperNode [2020-12-22 08:09:29,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:09:29,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:09:29,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:09:29,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:09:29,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:09:29,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:09:29,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:09:29,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:09:29,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:29,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:30,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:30,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (1/1) ... [2020-12-22 08:09:30,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:09:30,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:09:30,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:09:30,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:09:30,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (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 08:09:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:09:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:09:30,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:09:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:09:33,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:09:33,596 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:09:33,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:09:33 BoogieIcfgContainer [2020-12-22 08:09:33,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:09:33,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:09:33,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:09:33,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:09:33,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:09:27" (1/3) ... [2020-12-22 08:09:33,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381f0727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:09:33, skipping insertion in model container [2020-12-22 08:09:33,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:29" (2/3) ... [2020-12-22 08:09:33,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381f0727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:09:33, skipping insertion in model container [2020-12-22 08:09:33,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:09:33" (3/3) ... [2020-12-22 08:09:33,609 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+lhb-reducer.c [2020-12-22 08:09:33,616 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:09:33,622 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 08:09:33,641 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 08:09:33,678 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:09:33,678 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:09:33,679 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:09:33,679 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:09:33,679 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:09:33,679 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:09:33,679 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:09:33,679 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:09:33,723 INFO L276 IsEmpty]: Start isEmpty. Operand 905 states. [2020-12-22 08:09:33,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-22 08:09:33,766 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:33,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:33,768 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:33,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:33,775 INFO L82 PathProgramCache]: Analyzing trace with hash -956279315, now seen corresponding path program 1 times [2020-12-22 08:09:33,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:33,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811663605] [2020-12-22 08:09:33,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:34,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:34,809 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 08:09:34,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811663605] [2020-12-22 08:09:34,811 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:34,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:34,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739299436] [2020-12-22 08:09:34,818 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:34,819 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:34,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:34,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:34,837 INFO L87 Difference]: Start difference. First operand 905 states. Second operand 3 states. [2020-12-22 08:09:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:35,230 INFO L93 Difference]: Finished difference Result 1560 states and 2794 transitions. [2020-12-22 08:09:35,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:35,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-12-22 08:09:35,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:35,294 INFO L225 Difference]: With dead ends: 1560 [2020-12-22 08:09:35,294 INFO L226 Difference]: Without dead ends: 1306 [2020-12-22 08:09:35,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:35,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2020-12-22 08:09:35,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 1304. [2020-12-22 08:09:35,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-12-22 08:09:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1999 transitions. [2020-12-22 08:09:35,481 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1999 transitions. Word has length 298 [2020-12-22 08:09:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:35,485 INFO L481 AbstractCegarLoop]: Abstraction has 1304 states and 1999 transitions. [2020-12-22 08:09:35,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:35,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1999 transitions. [2020-12-22 08:09:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-22 08:09:35,493 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:35,494 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:35,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:09:35,495 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:35,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:35,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1196691478, now seen corresponding path program 1 times [2020-12-22 08:09:35,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:35,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672465404] [2020-12-22 08:09:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:35,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:36,007 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 08:09:36,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672465404] [2020-12-22 08:09:36,009 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:36,009 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:36,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440248991] [2020-12-22 08:09:36,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:36,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:36,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:36,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:36,017 INFO L87 Difference]: Start difference. First operand 1304 states and 1999 transitions. Second operand 3 states. [2020-12-22 08:09:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:36,349 INFO L93 Difference]: Finished difference Result 2483 states and 3850 transitions. [2020-12-22 08:09:36,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:36,350 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-12-22 08:09:36,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:36,363 INFO L225 Difference]: With dead ends: 2483 [2020-12-22 08:09:36,363 INFO L226 Difference]: Without dead ends: 2130 [2020-12-22 08:09:36,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:36,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2020-12-22 08:09:36,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 2128. [2020-12-22 08:09:36,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2128 states. [2020-12-22 08:09:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 3276 transitions. [2020-12-22 08:09:36,452 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 3276 transitions. Word has length 298 [2020-12-22 08:09:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:36,452 INFO L481 AbstractCegarLoop]: Abstraction has 2128 states and 3276 transitions. [2020-12-22 08:09:36,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 3276 transitions. [2020-12-22 08:09:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-22 08:09:36,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:36,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:36,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:09:36,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:36,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:36,468 INFO L82 PathProgramCache]: Analyzing trace with hash 2120659590, now seen corresponding path program 1 times [2020-12-22 08:09:36,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:36,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736971277] [2020-12-22 08:09:36,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:36,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:36,950 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 08:09:36,950 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736971277] [2020-12-22 08:09:36,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:36,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:36,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67792642] [2020-12-22 08:09:36,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:36,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:36,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:36,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:36,960 INFO L87 Difference]: Start difference. First operand 2128 states and 3276 transitions. Second operand 3 states. [2020-12-22 08:09:37,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:37,370 INFO L93 Difference]: Finished difference Result 4387 states and 6841 transitions. [2020-12-22 08:09:37,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:37,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2020-12-22 08:09:37,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:37,392 INFO L225 Difference]: With dead ends: 4387 [2020-12-22 08:09:37,392 INFO L226 Difference]: Without dead ends: 3818 [2020-12-22 08:09:37,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:37,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3818 states. [2020-12-22 08:09:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3818 to 3816. [2020-12-22 08:09:37,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3816 states. [2020-12-22 08:09:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5896 transitions. [2020-12-22 08:09:37,535 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5896 transitions. Word has length 298 [2020-12-22 08:09:37,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:37,536 INFO L481 AbstractCegarLoop]: Abstraction has 3816 states and 5896 transitions. [2020-12-22 08:09:37,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:37,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5896 transitions. [2020-12-22 08:09:37,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2020-12-22 08:09:37,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:37,547 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:37,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:09:37,547 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:37,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:37,548 INFO L82 PathProgramCache]: Analyzing trace with hash 2120228614, now seen corresponding path program 1 times [2020-12-22 08:09:37,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:37,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494443227] [2020-12-22 08:09:37,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:38,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:38,335 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 08:09:38,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494443227] [2020-12-22 08:09:38,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:38,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:09:38,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834617315] [2020-12-22 08:09:38,337 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:09:38,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:38,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:09:38,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:09:38,339 INFO L87 Difference]: Start difference. First operand 3816 states and 5896 transitions. Second operand 4 states. [2020-12-22 08:09:38,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:38,860 INFO L93 Difference]: Finished difference Result 11293 states and 17433 transitions. [2020-12-22 08:09:38,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:09:38,861 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 298 [2020-12-22 08:09:38,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:38,901 INFO L225 Difference]: With dead ends: 11293 [2020-12-22 08:09:38,901 INFO L226 Difference]: Without dead ends: 7488 [2020-12-22 08:09:38,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:09:38,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2020-12-22 08:09:39,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7312. [2020-12-22 08:09:39,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7312 states. [2020-12-22 08:09:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7312 states to 7312 states and 11250 transitions. [2020-12-22 08:09:39,298 INFO L78 Accepts]: Start accepts. Automaton has 7312 states and 11250 transitions. Word has length 298 [2020-12-22 08:09:39,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:39,298 INFO L481 AbstractCegarLoop]: Abstraction has 7312 states and 11250 transitions. [2020-12-22 08:09:39,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:09:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 7312 states and 11250 transitions. [2020-12-22 08:09:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:09:39,317 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:39,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:39,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:09:39,318 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:39,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1267338774, now seen corresponding path program 1 times [2020-12-22 08:09:39,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:39,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469088306] [2020-12-22 08:09:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:39,725 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 08:09:39,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469088306] [2020-12-22 08:09:39,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:39,726 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:39,727 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000768489] [2020-12-22 08:09:39,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:39,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:39,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:39,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:39,728 INFO L87 Difference]: Start difference. First operand 7312 states and 11250 transitions. Second operand 3 states. [2020-12-22 08:09:40,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:40,541 INFO L93 Difference]: Finished difference Result 21532 states and 33072 transitions. [2020-12-22 08:09:40,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:40,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-12-22 08:09:40,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:40,625 INFO L225 Difference]: With dead ends: 21532 [2020-12-22 08:09:40,626 INFO L226 Difference]: Without dead ends: 14345 [2020-12-22 08:09:40,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14345 states. [2020-12-22 08:09:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14345 to 14169. [2020-12-22 08:09:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14169 states. [2020-12-22 08:09:41,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14169 states to 14169 states and 21681 transitions. [2020-12-22 08:09:41,362 INFO L78 Accepts]: Start accepts. Automaton has 14169 states and 21681 transitions. Word has length 300 [2020-12-22 08:09:41,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:41,363 INFO L481 AbstractCegarLoop]: Abstraction has 14169 states and 21681 transitions. [2020-12-22 08:09:41,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:41,363 INFO L276 IsEmpty]: Start isEmpty. Operand 14169 states and 21681 transitions. [2020-12-22 08:09:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2020-12-22 08:09:41,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:41,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:41,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:09:41,464 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:41,465 INFO L82 PathProgramCache]: Analyzing trace with hash 593349467, now seen corresponding path program 1 times [2020-12-22 08:09:41,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:41,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749894542] [2020-12-22 08:09:41,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:41,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:41,607 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 08:09:41,608 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749894542] [2020-12-22 08:09:41,608 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:41,608 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:41,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249006941] [2020-12-22 08:09:41,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:41,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:41,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:41,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:41,611 INFO L87 Difference]: Start difference. First operand 14169 states and 21681 transitions. Second operand 3 states. [2020-12-22 08:09:42,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:42,688 INFO L93 Difference]: Finished difference Result 42440 states and 64927 transitions. [2020-12-22 08:09:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:42,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2020-12-22 08:09:42,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:42,762 INFO L225 Difference]: With dead ends: 42440 [2020-12-22 08:09:42,762 INFO L226 Difference]: Without dead ends: 28309 [2020-12-22 08:09:42,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:42,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28309 states. [2020-12-22 08:09:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28309 to 14188. [2020-12-22 08:09:43,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14188 states. [2020-12-22 08:09:43,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14188 states to 14188 states and 21709 transitions. [2020-12-22 08:09:43,890 INFO L78 Accepts]: Start accepts. Automaton has 14188 states and 21709 transitions. Word has length 300 [2020-12-22 08:09:43,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:43,890 INFO L481 AbstractCegarLoop]: Abstraction has 14188 states and 21709 transitions. [2020-12-22 08:09:43,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:43,890 INFO L276 IsEmpty]: Start isEmpty. Operand 14188 states and 21709 transitions. [2020-12-22 08:09:43,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-12-22 08:09:43,922 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:43,923 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:43,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:09:43,923 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:43,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:43,924 INFO L82 PathProgramCache]: Analyzing trace with hash -207598954, now seen corresponding path program 1 times [2020-12-22 08:09:43,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:43,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834914907] [2020-12-22 08:09:43,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:44,147 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 08:09:44,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834914907] [2020-12-22 08:09:44,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:44,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:44,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859740101] [2020-12-22 08:09:44,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:44,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:44,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:44,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:44,149 INFO L87 Difference]: Start difference. First operand 14188 states and 21709 transitions. Second operand 3 states. [2020-12-22 08:09:45,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:45,401 INFO L93 Difference]: Finished difference Result 42459 states and 64948 transitions. [2020-12-22 08:09:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:45,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-12-22 08:09:45,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:45,473 INFO L225 Difference]: With dead ends: 42459 [2020-12-22 08:09:45,474 INFO L226 Difference]: Without dead ends: 28327 [2020-12-22 08:09:45,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:45,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28327 states. [2020-12-22 08:09:46,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28327 to 14206. [2020-12-22 08:09:46,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14206 states. [2020-12-22 08:09:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14206 states to 14206 states and 21730 transitions. [2020-12-22 08:09:46,482 INFO L78 Accepts]: Start accepts. Automaton has 14206 states and 21730 transitions. Word has length 301 [2020-12-22 08:09:46,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:46,482 INFO L481 AbstractCegarLoop]: Abstraction has 14206 states and 21730 transitions. [2020-12-22 08:09:46,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 14206 states and 21730 transitions. [2020-12-22 08:09:46,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-12-22 08:09:46,511 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:46,512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:46,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:09:46,512 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:46,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:46,513 INFO L82 PathProgramCache]: Analyzing trace with hash 319871921, now seen corresponding path program 1 times [2020-12-22 08:09:46,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:46,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647278177] [2020-12-22 08:09:46,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:46,772 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 08:09:46,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647278177] [2020-12-22 08:09:46,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:46,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:46,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530100912] [2020-12-22 08:09:46,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:46,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:46,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:46,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:46,776 INFO L87 Difference]: Start difference. First operand 14206 states and 21730 transitions. Second operand 3 states. [2020-12-22 08:09:47,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:47,833 INFO L93 Difference]: Finished difference Result 40191 states and 61339 transitions. [2020-12-22 08:09:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:47,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2020-12-22 08:09:47,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:47,903 INFO L225 Difference]: With dead ends: 40191 [2020-12-22 08:09:47,903 INFO L226 Difference]: Without dead ends: 26226 [2020-12-22 08:09:47,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26226 states. [2020-12-22 08:09:49,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26226 to 26050. [2020-12-22 08:09:49,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26050 states. [2020-12-22 08:09:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26050 states to 26050 states and 39536 transitions. [2020-12-22 08:09:49,548 INFO L78 Accepts]: Start accepts. Automaton has 26050 states and 39536 transitions. Word has length 302 [2020-12-22 08:09:49,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:49,549 INFO L481 AbstractCegarLoop]: Abstraction has 26050 states and 39536 transitions. [2020-12-22 08:09:49,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 26050 states and 39536 transitions. [2020-12-22 08:09:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-12-22 08:09:49,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:49,597 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:49,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:09:49,598 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:49,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:49,599 INFO L82 PathProgramCache]: Analyzing trace with hash -815985074, now seen corresponding path program 1 times [2020-12-22 08:09:49,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:49,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592864266] [2020-12-22 08:09:49,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:50,156 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 08:09:50,157 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592864266] [2020-12-22 08:09:50,157 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:50,157 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:09:50,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802812995] [2020-12-22 08:09:50,158 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:09:50,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:50,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:09:50,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:09:50,159 INFO L87 Difference]: Start difference. First operand 26050 states and 39536 transitions. Second operand 5 states. [2020-12-22 08:09:53,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:53,101 INFO L93 Difference]: Finished difference Result 76819 states and 116431 transitions. [2020-12-22 08:09:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:09:53,102 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2020-12-22 08:09:53,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:53,252 INFO L225 Difference]: With dead ends: 76819 [2020-12-22 08:09:53,252 INFO L226 Difference]: Without dead ends: 50824 [2020-12-22 08:09:53,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:09:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50824 states. [2020-12-22 08:09:55,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50824 to 50668. [2020-12-22 08:09:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50668 states. [2020-12-22 08:09:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50668 states to 50668 states and 76315 transitions. [2020-12-22 08:09:55,886 INFO L78 Accepts]: Start accepts. Automaton has 50668 states and 76315 transitions. Word has length 302 [2020-12-22 08:09:55,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:55,887 INFO L481 AbstractCegarLoop]: Abstraction has 50668 states and 76315 transitions. [2020-12-22 08:09:55,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:09:55,887 INFO L276 IsEmpty]: Start isEmpty. Operand 50668 states and 76315 transitions. [2020-12-22 08:09:55,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:55,940 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:55,941 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:55,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:09:55,941 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:55,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:55,942 INFO L82 PathProgramCache]: Analyzing trace with hash -862612804, now seen corresponding path program 1 times [2020-12-22 08:09:55,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:55,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727993649] [2020-12-22 08:09:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:56,531 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 08:09:56,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727993649] [2020-12-22 08:09:56,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:56,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:09:56,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140636913] [2020-12-22 08:09:56,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:09:56,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:56,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:09:56,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:09:56,534 INFO L87 Difference]: Start difference. First operand 50668 states and 76315 transitions. Second operand 4 states. [2020-12-22 08:10:00,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:00,789 INFO L93 Difference]: Finished difference Result 149738 states and 225309 transitions. [2020-12-22 08:10:00,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:10:00,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-12-22 08:10:00,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:00,954 INFO L225 Difference]: With dead ends: 149738 [2020-12-22 08:10:00,954 INFO L226 Difference]: Without dead ends: 99267 [2020-12-22 08:10:01,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:10:01,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99267 states. [2020-12-22 08:10:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99267 to 99075. [2020-12-22 08:10:06,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99075 states. [2020-12-22 08:10:06,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99075 states to 99075 states and 148227 transitions. [2020-12-22 08:10:06,789 INFO L78 Accepts]: Start accepts. Automaton has 99075 states and 148227 transitions. Word has length 304 [2020-12-22 08:10:06,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:06,790 INFO L481 AbstractCegarLoop]: Abstraction has 99075 states and 148227 transitions. [2020-12-22 08:10:06,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:10:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 99075 states and 148227 transitions. [2020-12-22 08:10:06,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:10:06,907 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:06,908 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:06,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:10:06,908 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:06,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:06,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1106021304, now seen corresponding path program 1 times [2020-12-22 08:10:06,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:06,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417174020] [2020-12-22 08:10:06,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:06,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:07,082 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 08:10:07,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417174020] [2020-12-22 08:10:07,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:07,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:07,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867140827] [2020-12-22 08:10:07,084 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:07,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:07,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:07,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:07,085 INFO L87 Difference]: Start difference. First operand 99075 states and 148227 transitions. Second operand 3 states. [2020-12-22 08:10:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:15,542 INFO L93 Difference]: Finished difference Result 296705 states and 443845 transitions. [2020-12-22 08:10:15,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:10:15,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:10:15,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:15,853 INFO L225 Difference]: With dead ends: 296705 [2020-12-22 08:10:15,853 INFO L226 Difference]: Without dead ends: 197915 [2020-12-22 08:10:16,114 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197915 states. [2020-12-22 08:10:22,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197915 to 99205. [2020-12-22 08:10:22,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99205 states. [2020-12-22 08:10:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99205 states to 99205 states and 148417 transitions. [2020-12-22 08:10:22,350 INFO L78 Accepts]: Start accepts. Automaton has 99205 states and 148417 transitions. Word has length 306 [2020-12-22 08:10:22,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:22,350 INFO L481 AbstractCegarLoop]: Abstraction has 99205 states and 148417 transitions. [2020-12-22 08:10:22,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:10:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 99205 states and 148417 transitions. [2020-12-22 08:10:22,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:10:22,419 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:22,419 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:22,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:10:22,419 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:22,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:22,420 INFO L82 PathProgramCache]: Analyzing trace with hash 40574787, now seen corresponding path program 1 times [2020-12-22 08:10:22,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:22,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571632654] [2020-12-22 08:10:22,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:22,899 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 08:10:22,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571632654] [2020-12-22 08:10:22,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:22,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:22,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833459940] [2020-12-22 08:10:22,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:22,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:22,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:22,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:22,901 INFO L87 Difference]: Start difference. First operand 99205 states and 148417 transitions. Second operand 3 states. [2020-12-22 08:10:32,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:32,254 INFO L93 Difference]: Finished difference Result 292575 states and 437121 transitions. [2020-12-22 08:10:32,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:10:32,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:10:32,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:32,511 INFO L225 Difference]: With dead ends: 292575 [2020-12-22 08:10:32,511 INFO L226 Difference]: Without dead ends: 194393 [2020-12-22 08:10:32,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:32,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194393 states. [2020-12-22 08:10:43,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194393 to 194201. [2020-12-22 08:10:43,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194201 states. [2020-12-22 08:10:43,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194201 states to 194201 states and 288575 transitions. [2020-12-22 08:10:43,820 INFO L78 Accepts]: Start accepts. Automaton has 194201 states and 288575 transitions. Word has length 306 [2020-12-22 08:10:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:43,820 INFO L481 AbstractCegarLoop]: Abstraction has 194201 states and 288575 transitions. [2020-12-22 08:10:43,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:10:43,821 INFO L276 IsEmpty]: Start isEmpty. Operand 194201 states and 288575 transitions. [2020-12-22 08:10:43,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-12-22 08:10:43,965 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:43,966 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:43,966 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:10:43,966 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:43,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:43,967 INFO L82 PathProgramCache]: Analyzing trace with hash 733481091, now seen corresponding path program 1 times [2020-12-22 08:10:43,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:43,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988098738] [2020-12-22 08:10:43,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:44,083 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 08:10:44,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988098738] [2020-12-22 08:10:44,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:44,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:44,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45687490] [2020-12-22 08:10:44,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:44,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:44,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:44,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:44,086 INFO L87 Difference]: Start difference. First operand 194201 states and 288575 transitions. Second operand 3 states. [2020-12-22 08:11:03,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:03,720 INFO L93 Difference]: Finished difference Result 581349 states and 863657 transitions. [2020-12-22 08:11:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:03,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 307 [2020-12-22 08:11:03,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:04,527 INFO L225 Difference]: With dead ends: 581349 [2020-12-22 08:11:04,527 INFO L226 Difference]: Without dead ends: 387831 [2020-12-22 08:11:04,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:05,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387831 states. [2020-12-22 08:11:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387831 to 194363. [2020-12-22 08:11:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194363 states. [2020-12-22 08:11:18,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194363 states to 194363 states and 288761 transitions. [2020-12-22 08:11:18,576 INFO L78 Accepts]: Start accepts. Automaton has 194363 states and 288761 transitions. Word has length 307 [2020-12-22 08:11:18,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:18,576 INFO L481 AbstractCegarLoop]: Abstraction has 194363 states and 288761 transitions. [2020-12-22 08:11:18,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 194363 states and 288761 transitions. [2020-12-22 08:11:18,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 08:11:18,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:18,716 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:18,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:11:18,716 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:18,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:18,717 INFO L82 PathProgramCache]: Analyzing trace with hash -905931490, now seen corresponding path program 1 times [2020-12-22 08:11:18,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:18,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401412505] [2020-12-22 08:11:18,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:19,296 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 08:11:19,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401412505] [2020-12-22 08:11:19,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:19,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:19,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557784333] [2020-12-22 08:11:19,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:19,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:19,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:19,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:19,299 INFO L87 Difference]: Start difference. First operand 194363 states and 288761 transitions. Second operand 3 states. [2020-12-22 08:11:40,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:11:40,947 INFO L93 Difference]: Finished difference Result 573297 states and 850617 transitions. [2020-12-22 08:11:40,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:11:40,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 08:11:40,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:11:41,757 INFO L225 Difference]: With dead ends: 573297 [2020-12-22 08:11:41,757 INFO L226 Difference]: Without dead ends: 380477 [2020-12-22 08:11:42,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380477 states.